A wrong wiring training device

Abstract

The present invention discloses a wrong wiring training device, which comprises: a touch display component for displaying wiring mode options, obtaining the wiring mode selected by a user, and sending wiring mode information to a controller; the controller is used for sending a first control instruction to a voltage wiring control component and a second control instruction to a current wiring control component after receiving the wiring mode information; the voltage wiring control component is used for adjusting the wiring mode between a three-phase voltage terminal and a voltage terminal of a three-phase electric energy meter according to the first control instruction after receiving the first control instruction; the current wiring control component is used for adjusting the wiring mode between a three-phase current terminal and a current terminal of a three-phase electric energy meter according to the second control instruction after receiving the second control instruction, so that the training personnel can quickly judge whether the wiring mode is correct in a complex and hidden wiring environment, and calculate a correction coefficient to make up for the electricity.

Description

Technical Field

[0001] The invention relates to the technical field of wiring, and in particular to a wrong wiring training device. Background Art

[0002] At present, electric energy metering devices need to be operated and maintained autonomously. In daily operation and maintenance work, due to improper operation of operators or electricity theft by users, various incorrect wiring situations of current and voltage combinations will occur. The operation and maintenance personnel need to correct the incorrect wiring and calculate the correction coefficient to make up for the electricity.

[0003] In the current training on incorrect metering wiring, trainees can directly see the wiring errors. However, in actual work, they often encounter situations where the wiring is complex, hidden, and the environment is harsh. It is difficult for staff to directly judge the wiring situation with the naked eye, and the training cannot be implemented. Summary of the invention

[0004] The present invention provides a wrong wiring training device, which can determine the actual wiring condition of the circuit only by measuring the current and voltage data of the three-phase electric energy meter. It can better fit the actual working environment, so that the trainees can determine the actual wiring condition inside the training device by measuring the current and voltage at the wiring ends in a complex and hidden wiring environment, so as to better train the trainees.

[0005] According to one aspect of the present invention, a wrong wiring training device is provided, the wrong wiring training device comprising:

[0006] Touch display component, controller, three-phase electric energy meter, voltage wiring control component, current wiring control component, three-phase voltage terminal, three-phase current terminal and current transformer group; wherein,

[0007] The touch display component is electrically connected to a first end of the controller, the control end of the voltage wiring control component is electrically connected to a second end of the controller, and the control end of the current wiring control component is electrically connected to a third end of the controller;

[0008] The three-phase voltage terminal is used to connect to a three-phase power supply, and the three-phase voltage terminal is electrically connected to a first end of the voltage wiring control component; the second end of the voltage wiring control component is electrically connected to a voltage terminal of a three-phase electric energy meter;

[0009] The three-phase current terminal is used to connect to the current transformer group, and the three-phase current terminal is electrically connected to the first end of the current wiring control component; the second end of the current wiring control component is electrically connected to the current terminal of the three-phase electric energy meter;

[0010] The touch display component is used to display the wiring mode options, obtain the wiring mode options selected by the user, and send the wiring mode information to the controller according to the wiring mode options selected by the user;

[0011] The controller is used to send a first control instruction to the voltage wiring control component and a second control instruction to the current wiring control component after receiving the wiring mode information;

[0012] The voltage wiring control component is used to adjust the wiring mode between the three-phase voltage wiring terminal and the voltage wiring terminal of the three-phase electric energy meter according to the first control instruction after receiving the first control instruction;

[0013] The current wiring control component is used to adjust the wiring mode between the three-phase current wiring terminals and the current wiring terminals of the three-phase electric energy meter according to the second control instruction after receiving the second control instruction.

[0014] Further, the three-phase voltage terminal includes a first three-phase voltage terminal, a second three-phase voltage terminal and a third three-phase voltage terminal; the voltage terminal of the three-phase electric energy meter includes a first voltage terminal of the electric energy meter, a second voltage terminal of the electric energy meter and a third voltage terminal of the electric energy meter;

[0015] The three-phase current terminals include the first three-phase current terminal, the second three-phase current terminal, the third three-phase current terminal and the fourth three-phase current terminal; the current terminals of the three-phase electric energy meter include the first current terminal of the electric energy meter, the second current terminal of the electric energy meter, the third current terminal of the electric energy meter and the fourth current terminal of the electric energy meter.

[0016] Further, the voltage wiring control component includes nine voltage terminal relays; the nine voltage terminal relays are respectively a first voltage terminal relay, a second voltage terminal relay ... an eighth voltage terminal relay and a ninth voltage terminal relay;

[0017] The second end of the controller includes 9 voltage control sub-ends, and the control end of the first voltage terminal relay to the control end of the ninth voltage terminal relay are electrically connected to the 9 voltage control sub-ends in a one-to-one correspondence;

[0018] The first ends of the first voltage terminal relay, the second voltage terminal relay and the third voltage terminal relay are all electrically connected to the first three-phase voltage terminal, and the second ends of the first voltage terminal relay, the second voltage terminal relay and the third voltage terminal relay are electrically connected to the first voltage terminal, the second voltage terminal and the third voltage terminal of the electric energy meter respectively in a one-to-one correspondence;

[0019] The first ends of the fourth voltage terminal relay, the fifth voltage terminal relay and the sixth voltage terminal relay are all electrically connected to the second three-phase voltage terminal, and the second ends of the fourth voltage terminal relay, the fifth voltage terminal relay and the sixth voltage terminal relay are electrically connected to the first voltage terminal of the electric energy meter, the second voltage terminal of the electric energy meter and the third voltage terminal of the electric energy meter respectively in a one-to-one correspondence;

[0020] The first ends of the seventh voltage terminal relay, the eighth voltage terminal relay and the ninth voltage terminal relay are all electrically connected to the third three-phase voltage terminal, and the second ends of the seventh voltage terminal relay, the eighth voltage terminal relay and the ninth voltage terminal relay are respectively electrically connected to the first voltage terminal, the second voltage terminal and the third voltage terminal of the electric energy meter in a one-to-one correspondence.

[0021] Furthermore, the current wiring control component includes sixteen current terminal relays; the sixteen current terminal relays are respectively a first current terminal relay, a second current terminal relay, ... a fifteenth current terminal relay and a sixteenth current terminal relay;

[0022] The third end of the controller includes sixteen current control sub-ends, and the control ends of the sixteen current terminal relays are electrically connected to the sixteen current control sub-ends in a one-to-one correspondence;

[0023] The first ends of the first current terminal relay, the second current terminal relay, the third current terminal relay and the fourth current terminal relay are all electrically connected to the first three-phase current terminal, and the second ends of the first current terminal relay, the second current terminal relay, the third current terminal relay and the fourth current terminal relay are electrically connected to the first current terminal, the second current terminal, the third current terminal and the fourth current terminal of the electric energy meter respectively in a one-to-one correspondence;

[0024] The first ends of the fifth current terminal relay, the sixth current terminal relay, the seventh current terminal relay and the eighth current terminal relay are all electrically connected to the second three-phase current terminal, and the second ends of the fifth current terminal relay, the sixth current terminal relay, the seventh current terminal relay and the eighth current terminal relay are electrically connected to the first current terminal, the second current terminal, the third current terminal and the fourth current terminal of the electric energy meter respectively in a one-to-one correspondence;

[0025] The first ends of the ninth current terminal relay, the tenth current terminal relay, the eleventh current terminal relay and the twelfth current terminal relay are all electrically connected to the third three-phase current terminal, and the second ends of the ninth current terminal relay, the tenth current terminal relay, the eleventh current terminal relay and the twelfth current terminal relay are electrically connected to the first current terminal of the electric energy meter, the second current terminal of the electric energy meter, the third current terminal of the electric energy meter and the fourth current terminal of the electric energy meter respectively in a one-to-one correspondence;

[0026] The first ends of the thirteenth current terminal relay, the fourteenth current terminal relay, the fifteenth current terminal relay and the sixteenth current terminal relay are all electrically connected to the fourth three-phase current terminal, and the second ends of the thirteenth current terminal relay, the fourteenth current terminal relay, the fifteenth current terminal relay and the sixteenth current terminal relay are respectively electrically connected to the first current terminal, the second current terminal, the third current terminal and the fourth current terminal of the electric energy meter.

[0027] Furthermore, the current transformer group includes a first current transformer and a second current transformer; the first end of the first current transformer is electrically connected to the first three-phase current terminal, the second end of the first current transformer is electrically connected to the second three-phase current terminal, the first end of the second current transformer is electrically connected to the third three-phase current terminal, and the second end of the second current transformer is electrically connected to the fourth three-phase current terminal.

[0028] Furthermore, the wrong wiring training device also includes an optocoupler detection group, which is used to detect whether the first three-phase voltage terminal, the second three-phase voltage terminal and the third three-phase voltage terminal are energized, and send the detection result to the controller;

[0029] The optocoupler detection group includes a first optocoupler circuit, a second optocoupler circuit and a third optocoupler circuit;

[0030] The first end of the first optical coupling circuit is electrically connected to the first three-phase voltage terminal, the second end is electrically connected to the second three-phase voltage terminal, and the third end is electrically connected to the fourth end of the controller;

[0031] The first end of the second optical coupling circuit is electrically connected to the second three-phase voltage terminal, the second end is electrically connected to the third three-phase voltage terminal, and the third end is electrically connected to the fifth end of the controller;

[0032] The first end of the third optocoupler circuit is electrically connected to the third three-phase voltage end, the second end is electrically connected to the first three-phase voltage end, and the third end is electrically connected to the sixth end of the controller.

[0033] Further, the first optocoupler circuit includes a first optocoupler, a first resistor and a second resistor;

[0034] The first end of the first optical coupler is electrically connected to the first three-phase voltage terminal, the second end of the first optical coupler is electrically connected to the first end of the first resistor; the second end of the first resistor is electrically connected to the second three-phase voltage terminal; the third end of the first optical coupler is electrically connected to the fourth end of the controller; the first end of the second resistor is electrically connected to the fourth end of the controller; the fourth end of the first optical coupler is grounded;

[0035] The second optocoupler circuit includes a second optocoupler, a third resistor and a fourth resistor;

[0036] The first end of the second optical coupler is electrically connected to the second three-phase voltage terminal; the second end of the second optical coupler is electrically connected to the first end of the third resistor; the second end of the third resistor is electrically connected to the third three-phase voltage terminal; the third end of the second optical coupler is electrically connected to the fifth end of the controller; the first end of the fourth resistor is electrically connected to the fifth end of the controller; the fourth end of the second optical coupler is grounded;

[0037] The third optocoupler circuit includes a third optocoupler, a fifth resistor and a sixth resistor;

[0038] The first end of the third optocoupler is electrically connected to the third three-phase voltage terminal; the second end of the third optocoupler is electrically connected to the first end of the fifth resistor; the second end of the fifth resistor is electrically connected to the first three-phase voltage terminal; the third end of the third optocoupler is electrically connected to the sixth end of the controller; the first end of the sixth resistor is electrically connected to the sixth end of the controller; and the fourth end of the third optocoupler is grounded.

[0039] Furthermore, the controller is further configured to send a wiring mode display instruction to the touch display component after sending the first control instruction and the second control instruction;

[0040] The touch display component is also used to display the wiring method image between the three-phase voltage terminal and the voltage terminal of the three-phase electric energy meter, and the wiring method image between the three-phase current terminal and the current terminal of the three-phase electric energy meter after receiving the wiring method display instruction.

[0041] Further, the first end of the controller includes a first signal receiving end and a first signal transmitting end, and the touch display component includes:

[0042] A level conversion module and a display screen module, wherein a first signal transmitting end of the level conversion module is electrically connected to a first signal receiving end of a controller; a first signal receiving end of the level conversion module is electrically connected to a first signal transmitting end of the controller; a second signal transmitting end of the level conversion module is electrically connected to a signal receiving end of the display screen module; and a second signal receiving end of the level conversion module is electrically connected to a signal transmitting end of the display screen module.

[0043] Furthermore, the wrong wiring training device also includes:

[0044] A first overcurrent protection module and a second overcurrent protection module;

[0045] The first overcurrent protection module is electrically connected between the three-phase voltage wiring terminal and the first end of the voltage wiring control component;

[0046] The second overcurrent protection module is electrically connected between the three-phase current wiring terminal and the first end of the current wiring control component.

[0047] The incorrect wiring training device designed in the embodiment of the present invention includes a touch display component, a controller, a three-phase electric energy meter, a voltage wiring control component, a current wiring control component, a three-phase voltage terminal, a three-phase current terminal and a current transformer group. The trainee can freely select the wiring mode option through the touch display component to switch the test questions. The controller controls the on and off of the voltage wiring control component and the current wiring control component according to the wiring mode option selected by the trainee to realize the conversion of different wiring modes. After selecting the wiring mode option, the trainee cannot see the actual wiring of the circuit and can only judge the actual wiring condition of the circuit by measuring the current and voltage data of the three-phase electric energy meter. This can better suit the actual working environment, so that the trainee can judge the actual wiring condition inside the training device by measuring the current and voltage at the wiring end in a complex and hidden wiring environment, so as to better train the trainee.

[0048] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0050] Figure 1 is a structural schematic diagram of a wrong wiring training device provided according to an embodiment of the present invention;

[0051] Figure 2 It is a schematic diagram of an interface display of a wrong wiring training device provided according to an embodiment of the present invention;

[0052] Figure 3 is a schematic diagram of an interface display of another wrong wiring training device provided according to an embodiment of the present invention;

[0053] Figure 4 It is a schematic diagram of an interface display of another wrong wiring training device provided according to an embodiment of the present invention;

[0054] Figure 5 is a structural schematic diagram of a wrong wiring training device provided according to an embodiment of the present invention;

[0055] Figure 6 is a schematic diagram of the internal structure of a voltage wiring control component provided according to an embodiment of the present invention;

[0056] Figure 7 is a schematic diagram of the internal structure of a current wiring control component provided according to an embodiment of the present invention;

[0057] Figure 8 is a schematic diagram of a structure including an optical coupler detection group provided according to an embodiment of the present invention;

[0058] Fig. 9 is a connection diagram including a first optocoupler circuit provided according to an embodiment of the present invention;

[0059] Fig.10 is a connection diagram including a second optocoupler circuit provided according to an embodiment of the present invention;

[0060] Fig.11 is a connection diagram including a third optocoupler circuit provided according to an embodiment of the present invention;

[0061] Fig.12 is a connection diagram including a touch display component provided in an embodiment of the present invention;

[0062] Fig.13 is a schematic diagram of the internal structure of an overcurrent protection module provided according to an embodiment of the present invention;

[0063] Fig.14 is a circuit diagram of a power module provided according to an embodiment of the present invention. DETAILED DESCRIPTION

[0064] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0065] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0066] The embodiment of the present invention provides a wrong wiring training device, Figure 1 is a schematic diagram of a structure of a wrong wiring training device provided according to an embodiment of the present invention, referring to Figure 1 , the incorrect wiring training set includes:

[0067] Touch display component 1, controller 2, three-phase electric energy meter 3, voltage wiring control component 4, current wiring control component 5, three-phase voltage terminal 6, three-phase current terminal 7 and current transformer group 8; wherein,

[0068] The touch display component 1 is electrically connected to a first end of the controller 2, the control end of the voltage wiring control component 4 is electrically connected to a second end of the controller 2, and the control end of the current wiring control component 5 is electrically connected to a third end of the controller 2;

[0069] The three-phase voltage terminal 6 is used to connect to a three-phase power supply, and the three-phase voltage terminal 6 is electrically connected to a first end of the voltage wiring control component 4; the second end of the voltage wiring control component 4 is electrically connected to a voltage terminal of the three-phase electric energy meter 3;

[0070] The three-phase current terminal 7 is used to connect to the current transformer group 8, and the three-phase current terminal 7 is electrically connected to the first end of the current wiring control component 5; the second end of the current wiring control component 5 is electrically connected to the current terminal of the three-phase electric energy meter 3;

[0071] The touch display component 1 is used to display the wiring mode options, obtain the wiring mode options selected by the user, and send the wiring mode information to the controller 2 according to the wiring mode options selected by the user;

[0072] The controller 2 is used to send a first control instruction to the voltage wiring control component 4 and a second control instruction to the current wiring control component 5 after receiving the wiring mode information;

[0073] The voltage connection control component 4 is used to adjust the connection mode between the three-phase voltage connection terminal 6 and the voltage connection terminal of the three-phase electric energy meter 3 according to the first control instruction after receiving the first control instruction;

[0074] The current connection control component 5 is used to adjust the connection mode between the three-phase current connection terminal 7 and the current connection terminal of the three-phase electric energy meter 3 according to the second control instruction after receiving the second control instruction.

[0075] Among them, the touch display component 1 can be a combination device including a touch display screen, and the controller 2 can be an STC single-chip microcomputer, an STM32 single-chip microcomputer, etc., which is not limited by the embodiment of the present invention. The voltage wiring control component 4 and the current wiring control component 5 can include multiple relays, and illustratively, they can be HF3FF ultra-small high-power relays. The current transformer group 8 includes two or more current transformers. The voltage wiring control component 4 is connected to the wiring terminal of the three-phase power supply through the three-phase voltage wiring terminal 6, and the current wiring control component 5 is connected to the wiring terminal of the current transformer group 8 through the three-phase current wiring terminal 7.

[0076] The wiring mode options can be represented by Chinese characters such as "first wiring mode", "second wiring mode", etc., or by numbers, and this embodiment does not make specific limitations. The trainer can randomly select a wiring mode option, and each wiring mode option corresponds to a wiring mode. After the trainer selects a wiring mode option, the voltage wiring control component 4 adjusts the wiring mode between the three-phase voltage terminal 6 and the voltage terminal of the three-phase electric energy meter 3 to the mode corresponding to the wiring mode option, and the current wiring control component 5 adjusts the wiring mode between the three-phase current terminal 7 and the current terminal of the three-phase electric energy meter 3 to the mode corresponding to the wiring mode option.

[0077] Specifically, Figure 2 is a schematic diagram of an interface display of a wrong wiring training device provided according to an embodiment of the present invention. Figure 3 is a schematic diagram of an interface display of another wrong wiring training device provided according to an embodiment of the present invention. Figure 4 FIG. 1 is a schematic diagram of an interface display of another wrong wiring training device provided according to an embodiment of the present invention, wherein the touch display component 1 is connected to the controller 2, such as Figure 2 As shown, the screen displayed on the display interface of the wrong wiring training device is divided into 48 areas, each area corresponds to a different wiring method, and the controller 2 can determine the training test questions specifically selected by the user according to the specific position of the user touching the touch display component 1, and control the on and off of the relays in the voltage wiring control component 4 and the current wiring control component 5 according to the training test question number selected by the user, and switch the connection method between the voltage wiring terminal and the current wiring terminal and the three-item electric energy meter. Exemplarily, after the on and off connection of the relays in the voltage wiring control component 4 and the current wiring control component 5 is completed, it can be based on the following example. Figure 3 The interface shown is used for the next stage of operation. At this time, the trainee can measure the current and voltage data of the three-phase electric energy meter 3, and can determine the wiring method between the three-phase voltage terminal 6 and the voltage terminal of the three-phase electric energy meter 3 and between the three-phase current terminal 7 and the current terminal of the three-phase electric energy meter 3 based on the measured current and voltage data.

[0078] The wiring mode determined by the trainer can be compared with the actual wiring mode corresponding to the selected wiring mode option to determine whether the determined wiring mode is correct, thereby achieving training for the trainer.

[0079] In addition, the actual wiring method corresponding to the wiring method option selected by the user can also be displayed on the touch display component 1, and the specific display content is as follows: Figure 4 As shown, whether the wiring method judged by the training personnel is correct is determined according to the wiring method displayed by the touch display component 1.

[0080] The incorrect wiring training device designed in the embodiment of the present invention includes a touch display component 1, a controller 2, a three-phase electric energy meter 3, a voltage wiring control component 4, a current wiring control component 5, a three-phase voltage terminal 6, a three-phase current terminal 7 and a current transformer group 8. The trainee can freely select a wiring mode option through the touch display component 1 to switch test questions. The controller 2 controls the on and off of the voltage wiring control component 4 and the current wiring control component 5 according to the wiring mode option selected by the trainee to achieve conversion of different wiring modes. After selecting the wiring mode option, the trainee cannot see the actual wiring of the circuit and can only judge the actual wiring condition of the circuit by measuring the current and voltage data of the three-phase electric energy meter 3. This can better fit the actual working environment, so that the trainee can judge the actual wiring condition inside the training device by measuring the current and voltage at the wiring end in a complex and hidden wiring environment, so as to better train the trainee.

[0081] Figure 5 is a structural diagram of a wrong wiring training device provided according to an embodiment of the present invention, and optionally, reference Figure 5 , the three-phase voltage terminal 6 includes a first three-phase voltage terminal UA1, a second three-phase voltage terminal UB1 and a third three-phase voltage terminal UC1; the voltage terminal J1 of the three-phase electric energy meter includes a first electric energy meter voltage terminal Ua2, a second electric energy meter voltage terminal Ub2 and a third electric energy meter voltage terminal Uc2;

[0082] The three-phase current terminal 7 includes the first three-phase current terminal IAK11, the second three-phase current terminal IAK12, the third three-phase current terminal ICK11 and the fourth three-phase current terminal ICK12; the current terminal J2 of the three-phase electric energy meter includes the first current terminal Iak21 of the electric energy meter, the second current terminal Iak22 of the electric energy meter, the third current terminal Ick21 of the electric energy meter and the fourth current terminal Ick22 of the electric energy meter.

[0083] Specifically, Figure 5 As shown, there are a total of 48 connection relationships between the three-phase voltage terminal 6 and the voltage terminal J1 of the three-phase electric energy meter and between the three-phase current terminal 7 and the current terminal J2 of the three-phase electric energy meter.

[0084] There are 6 kinds of connection relationships between the three-phase voltage terminal 6 and the voltage terminal J1 of the three-phase electric energy meter, specifically including: the first three-phase voltage terminal UA1 is connected to the first voltage terminal Ua2 of the electric energy meter, the second three-phase voltage terminal UB1 is connected to the second voltage terminal Ub2 of the electric energy meter, and the third three-phase voltage terminal UC1 is connected to the third voltage terminal Uc2 of the electric energy meter; the first three-phase voltage terminal UA1 is connected to the first voltage terminal Ua2 of the electric energy meter, the second three-phase voltage terminal UB1 is connected to the third voltage terminal Uc2 of the electric energy meter, and the third three-phase voltage terminal UC1 is connected to the second voltage terminal Ub2 of the electric energy meter; the first three-phase voltage terminal UA1 is connected to the second voltage terminal Ub2 of the electric energy meter, the second three-phase voltage terminal UB1 is connected to the first voltage terminal Ua2 of the electric energy meter, and the third three-phase voltage terminal UC1 is connected to the third voltage terminal Uc2 of the electric energy meter; the first three-phase voltage terminal UA1 is connected to the second voltage terminal Ub2 of the electric energy meter, the second three-phase voltage terminal UB1 is connected to the third voltage terminal Uc2 of the electric energy meter, and the third three-phase voltage terminal UC1 is connected to the first voltage terminal Ua2 of the electric energy meter; the first three-phase voltage terminal UA1 is connected to the third voltage terminal Uc2 of the electric energy meter, the second three-phase voltage terminal UB1 is connected to the first voltage terminal Ua2 of the electric energy meter, and the third three-phase voltage terminal UC1 is connected to the second voltage terminal Ub2 of the electric energy meter; the first three-phase voltage terminal UA1 is connected to the third voltage terminal Uc2 of the electric energy meter, the second three-phase voltage terminal UB1 is connected to the second voltage terminal Ub2 of the electric energy meter, and the third three-phase voltage terminal UC1 is connected to the first voltage terminal Ua2 of the electric energy meter.

[0085] There are 8 connection relationships between the three-phase current terminal 7 and the current terminal J2 of the three-phase electric energy meter, specifically including: the first three-phase current terminal IAK11 is connected to the first current terminal Iak21 of the electric energy meter, the second three-phase current terminal IAK12 is connected to the second current terminal Iak22 of the electric energy meter, the third three-phase current terminal ICK11 is connected to the third current terminal Ick21 of the electric energy meter, and the fourth three-phase current terminal ICK12 is connected to the fourth current terminal Ick22 of the electric energy meter; the first three-phase current terminal IAK11 is connected to the second current terminal Iak22 of the electric energy meter, the second three-phase current terminal IAK12 is connected to the first current terminal Iak21 of the electric energy meter, the third three-phase current terminal ICK11 is connected to the third current terminal Ick21 of the electric energy meter, and the fourth three-phase current terminal ICK12 is connected to the fourth current terminal Ick22 of the electric energy meter. The three-phase current terminal ICK12 is connected to the fourth current terminal Ick22 of the electric energy meter; the first three-phase current terminal IAK11 is connected to the first current terminal Iak21 of the electric energy meter, the second three-phase current terminal IAK12 is connected to the second current terminal Iak22 of the electric energy meter, the third three-phase current terminal ICK11 is connected to the fourth current terminal Ick22 of the electric energy meter, and the fourth three-phase current terminal ICK12 is connected to the third current terminal Ick21 of the electric energy meter; the first three-phase current terminal IAK11 is connected to the second current terminal Iak22 of the electric energy meter, the second three-phase current terminal IAK12 is connected to the first current terminal Iak21 of the electric energy meter, the third three-phase current terminal ICK11 is connected to the fourth current terminal Ick22 of the electric energy meter, and the fourth three-phase current terminal ICK1 2 is connected to the third current terminal Ick21 of the electric energy meter; the first three-phase current terminal IAK11 is connected to the third current terminal Ick21 of the electric energy meter, the second three-phase current terminal IAK12 is connected to the fourth current terminal Ick22 of the electric energy meter, the third three-phase current terminal ICK11 is connected to the first current terminal Iak21 of the electric energy meter, and the fourth three-phase current terminal ICK12 is connected to the second current terminal Iak22 of the electric energy meter; the first three-phase current terminal IAK11 is connected to the fourth current terminal Ick22 of the electric energy meter, the second three-phase current terminal IAK12 is connected to the third current terminal Ick21 of the electric energy meter, the third three-phase current terminal ICK11 is connected to the first current terminal Iak21 of the electric energy meter, and the fourth three-phase current terminal ICK12 is connected to the second current terminal Iak22 of the electric energy meter The first three-phase current terminal IAK11 is connected to the third current terminal Ick21 of the electric energy meter, the second three-phase current terminal IAK12 is connected to the fourth current terminal Ick22 of the electric energy meter, the third three-phase current terminal ICK11 is connected to the second current terminal Iak22 of the electric energy meter, and the fourth three-phase current terminal ICK12 is connected to the first current terminal Iak21 of the electric energy meter; the first three-phase current terminal IAK11 is connected to the fourth current terminal Ick22 of the electric energy meter, the second three-phase current terminal IAK12 is connected to the third current terminal Ick21 of the electric energy meter, the third three-phase current terminal ICK11 is connected to the second current terminal Iak22 of the electric energy meter, and the fourth three-phase current terminal ICK12 is connected to the first current terminal Iak21 of the electric energy meter.

[0086] Among them, the first three-phase voltage terminal UA1 is connected to the first voltage terminal Ua2 of the electric energy meter, the second three-phase voltage terminal UB1 is connected to the second voltage terminal Ub2 of the electric energy meter, and the third three-phase voltage terminal UC1 is connected to the third voltage terminal Uc2 of the electric energy meter; the first three-phase current terminal IAK11 is connected to the first current terminal Iak21 of the electric energy meter, the second three-phase current terminal IAK12 is connected to the second current terminal Iak22 of the electric energy meter, the third three-phase current terminal ICK11 is connected to the third current terminal Ick21 of the electric energy meter, and the fourth three-phase current terminal ICK12 is connected to the fourth current terminal Ick22 of the electric energy meter, which is the only correct wiring method.

[0087] Figure 6 is a schematic diagram of the internal structure of a voltage wiring control component provided according to an embodiment of the present invention, and optionally, reference Figure 1 , Figure 5 and Figure 6 The voltage wiring control component 4 includes nine voltage terminal relays; the nine voltage terminal relays are respectively a first voltage terminal relay K1, a second voltage terminal relay K2, ... an eighth voltage terminal relay K8 and a ninth voltage terminal relay K9;

[0088] The second end of the controller 2 includes 9 voltage control sub-terminals, and the control end a1 of the first voltage terminal relay K1 to the control end a9 of the ninth voltage terminal relay are electrically connected to the 9 voltage control sub-terminals in a one-to-one correspondence;

[0089] The first ends of the first voltage terminal relay K1, the second voltage terminal relay K2 and the third voltage terminal relay K3 are all electrically connected to the first three-phase voltage terminal UA1, and the second ends of the first voltage terminal relay K1, the second voltage terminal relay K2 and the third voltage terminal relay K3 are electrically connected to the first voltage terminal Ua2, the second voltage terminal Ub2 and the third voltage terminal Uc2 of the electric energy meter respectively in a one-to-one correspondence;

[0090] The first ends of the fourth voltage terminal relay K4, the fifth voltage terminal relay K5 and the sixth voltage terminal relay K6 are all electrically connected to the second three-phase voltage terminal UB1, and the second ends of the fourth voltage terminal relay K4, the fifth voltage terminal relay K5 and the sixth voltage terminal relay K6 are electrically connected to the first voltage terminal Ua2, the second voltage terminal Ub2 and the third voltage terminal Uc2 of the electric energy meter respectively in a one-to-one correspondence;

[0091] The first ends of the seventh voltage terminal relay K7, the eighth voltage terminal relay K8 and the ninth voltage terminal relay K9 are all electrically connected to the third three-phase voltage terminal Uc2, and the second ends of the seventh voltage terminal relay K7, the eighth voltage terminal relay K8 and the ninth voltage terminal relay K9 are respectively electrically connected to the first voltage terminal Ua2, the second voltage terminal Ub2 and the third voltage terminal Uc2 of the electric energy meter.

[0092] Among them, the first voltage terminal relay K1 includes a control terminal a1, a first terminal c1 and a second terminal e1, the second voltage terminal relay K2 includes a control terminal a2, a first terminal c2 and a second terminal e2, the third voltage terminal relay K3 includes a control terminal a3, a first terminal c3 and a second terminal e3, the fourth voltage terminal relay K4 includes a control terminal a4, a first terminal c4 and a second terminal e4, the fifth voltage terminal relay K5 includes a control terminal a5, a first terminal c5 and a second terminal e5, the sixth voltage terminal relay K6 includes a control terminal a6, a first terminal c6 and a second terminal e6, the seventh voltage terminal relay K7 includes a control terminal a7, a first terminal c7 and a second terminal e7, the eighth voltage terminal relay K8 includes a control terminal a8, a first terminal c8 and a second terminal e8, and the ninth voltage terminal relay K9 includes a control terminal a9, a first terminal c9 and a second terminal e9.

[0093] Specifically, the controller 2 can directly control the on and off of the nine voltage terminal relays according to the received wiring method information, thereby forming the wiring method of the training test questions (voltage part) required by the user; it can also control the on and off of the nine voltage terminal relays through multiple relay driver chips, thereby forming the wiring method of the training test questions (voltage part) required by the user.

[0094] In addition, the voltage wiring control component 4 can also include a relay driver chip. When a relay driver chip exists between the controller 2 and the nine voltage terminal relays, the control end of the relay driver chip is electrically connected to the controller 2, and the driving end of the relay driver chip is connected to the voltage terminal relay, wherein the number of relay driver chips can be determined according to the number of voltage terminal relays.

[0095] Exemplarily, taking the first voltage terminal relay K1, the fifth voltage terminal relay K5 and the ninth voltage terminal relay K9 being turned on and a relay driver chip being present between the controller 2 and the nine voltage terminal relays as an example, the specific conduction process of the relay is described in detail, as follows:

[0096] When the controller 2 sends the first control instruction to the voltage wiring control component 4, the controller 2 first transmits the first control instruction to the relay driver chip. After receiving the first control instruction sent by the controller 2, the control end of the relay driver chip sends a drive signal to the corresponding voltage terminal relay through the drive end of the relay driver chip to drive the corresponding voltage terminal relay to conduct. Among them, the first control instruction can be a conduction signal of the first voltage terminal relay K1, the fifth voltage terminal relay K5 and the ninth voltage terminal relay K9. The control end a1 of the first voltage terminal relay K1, the control end a5 of the fifth voltage terminal relay K5 and the control end a9 of the ninth voltage terminal relay K9 are turned on, so that the coils of the first voltage terminal relay K1, the fifth voltage terminal relay K5 and the ninth voltage terminal relay K9 are energized, and the corresponding relay switches are closed. At this time, the first three-phase voltage terminal UA1 is connected to the first voltage terminal Ua2 of the electric energy meter, the second three-phase voltage terminal UB1 is connected to the second voltage terminal Ub2 of the electric energy meter, and the third three-phase voltage terminal Uc2 is connected to the third voltage terminal Uc2 of the electric energy meter.

[0097] Figure 7 is a schematic diagram of the internal structure of the current wiring control component provided according to an embodiment of the present invention, and optionally, reference Figure 1 , Figure 5 and Figure 7 The current wiring control component 5 includes sixteen current terminal relays; the sixteen current terminal relays are respectively a first current terminal relay K10, a second current terminal relay K11 ... a fifteenth current terminal relay K24 and a sixteenth current terminal relay K25;

[0098] The third terminal of the controller 2 includes sixteen current control sub-terminals, and the control terminals of the sixteen current terminal relays are electrically connected to the sixteen current control sub-terminals in a one-to-one correspondence;

[0099] The first ends of the first current terminal relay K10, the second current terminal relay K11, the third current terminal relay K12 and the fourth current terminal relay K13 are all electrically connected to the first three-phase current terminal IAK11, and the second ends of the first current terminal relay K10, the second current terminal relay K11, the third current terminal relay K12 and the fourth current terminal relay K13 are electrically connected to the first current terminal Iak21, the second current terminal Iak22, the third current terminal Ick21 and the fourth current terminal Ick22 of the electric energy meter, respectively;

[0100] The first ends of the fifth current terminal relay K14, the sixth current terminal relay K15, the seventh current terminal relay K16 and the eighth current terminal relay K17 are all electrically connected to the second three-phase current terminal IAK12, and the second ends of the fifth current terminal relay K14, the sixth current terminal relay K15, the seventh current terminal relay K16 and the eighth current terminal relay K17 are electrically connected to the first current terminal Iak21, the second current terminal Iak22, the third current terminal Ick21 and the fourth current terminal Ick22 of the electric energy meter respectively in a one-to-one correspondence;

[0101] The first ends of the ninth current terminal relay K18, the tenth current terminal relay K19, the eleventh current terminal relay K20 and the twelfth current terminal relay K21 are all electrically connected to the third three-phase current terminal ICK11, and the second ends of the ninth current terminal relay K18, the tenth current terminal relay K19, the eleventh current terminal relay K20 and the twelfth current terminal relay K21 are electrically connected to the first current terminal Iak21, the second current terminal Iak22, the third current terminal Ick21 and the fourth current terminal Ick22 of the electric energy meter, respectively, in a one-to-one correspondence;

[0102] The first ends of the thirteenth current terminal relay K22, the fourteenth current terminal relay K23, the fifteenth current terminal relay K24 and the sixteenth current terminal relay K25 are all electrically connected to the fourth three-phase current terminal ICK12, and the second ends of the thirteenth current terminal relay K22, the fourteenth current terminal relay K23, the fifteenth current terminal relay K24 and the sixteenth current terminal relay K25 are respectively electrically connected to the first current terminal Iak21, the second current terminal Iak22, the third current terminal Ick21 and the fourth current terminal Ick22 of the electric energy meter.

[0103] Among them, the control end b1, the first end f1 and the second end g1 of the first current terminal relay K10, the control end b2, the first end f2 and the second end g2 of the second current terminal relay K11, the control end b3, the first end f3 and the second end g3 of the third current terminal relay K12, the control end b4, the first end f4 and the second end g4 of the fourth current terminal relay K13, the control end b5, the first end f5 and the second end g5 of the fifth current terminal relay K14, the control end b6, the first end f6 and the second end g6 of the sixth current terminal relay K15, the control end b7, the first end f7 and the second end g7 of the seventh current terminal relay K16, the control end b8, the first end f8 and the second end g8 of the eighth current terminal relay K17, the control end b9, the first end f9 and the second end g10 of the ninth current terminal relay K18 the control end b9, the first end f9 and the second end g9 of the tenth current terminal relay K19, the control end b10, the first end f10 and the second end g10 of the tenth current terminal relay K19, the control end b11, the first end f11 and the second end g11 of the eleventh current terminal relay K20, the control end b12, the first end f12 and the second end g12 of the twelfth current terminal relay K21, the control end b13, the first end f13 and the second end g13 of the thirteenth current terminal relay K22, the control end b14, the first end f14 and the second end g14 of the fourteenth current terminal relay K23, the control end b15, the first end f15 and the second end g15 of the fifteenth current terminal relay K24, the control end b16, the first end f16 and the second end g16 of the sixteenth current terminal relay K25.

[0104] Specifically, the controller 2 can directly control the on and off of the sixteen current terminal relays according to the received wiring mode information, thereby forming the wiring mode of the training test questions (current part) required by the user; it can also control the on and off of the sixteen current terminal relays through multiple relay driver chips, thereby forming the wiring mode of the training test questions (current part) required by the user. The current wiring control component can also include a relay driver chip. When a relay driver chip exists between the controller 2 and the sixteen current terminal relays, the control end of the relay driver chip is electrically connected to the controller 2, and the driving end of the relay driver chip is connected to the current terminal relay, wherein the number of relay driver chips can be determined according to the number of current terminal relays.

[0105] Exemplarily, taking the first current terminal relay K10, the sixth current terminal relay K15, the twelfth current terminal relay K21 and the fifteenth current terminal relay K24 being turned on and the relay driver chip being present between the controller 2 and the sixteen current terminal relays as an example, the specific conduction process of the relay is described in detail, as follows:

[0106] When the controller 2 sends the second control instruction to the current wiring control component 5, the controller 2 first transmits the second control instruction to the relay driver chip. After receiving the second control instruction sent by the controller 2, the control end of the relay driver chip sends a drive signal to the corresponding current terminal relay through the drive end of the relay driver chip to drive the corresponding current terminal relay to conduct. Among them, the second control instruction can be a conduction signal for the first current terminal relay K10, the sixth current terminal relay K15, the twelfth current terminal relay K21 and the fifteenth current terminal relay K24. The control end b1 of the first current terminal relay K10, the control end b6 of the sixth current terminal relay K15, the control end b12 of the twelfth current terminal relay K21 and the control end b15 of the fifteenth current terminal relay K24 are turned on, so that the coils of the first current terminal relay K10, the sixth current terminal relay K15, the twelfth current terminal relay K21 and the fifteenth current terminal relay K24 are energized, and the corresponding relay switches are closed. At this time, the wiring form is formed in which the first three-phase current terminal IAK11 is connected to the first current terminal Iak21 of the electric energy meter, the second three-phase current terminal IAK12 is connected to the second current terminal Iak22 of the electric energy meter, the third three-phase current terminal ICK11 is connected to the fourth current terminal Ick22 of the electric energy meter, and the fourth three-phase current terminal ICK12 is connected to the third current terminal Ick21 of the electric energy meter.

[0107] Specifically, since the voltage terminal relay and the current terminal relay described in the embodiment of the present invention are HF3FF ultra-small high-power relays, the training device can be designed as a portable and portable miswiring training device because the components constituting the training device are relatively small, so that training can be carried out in a simple place as long as there is the miswiring training device and a power supply. And since the cost of ultra-small high-power relays is relatively cheap, the production capital of the miswiring training device is much lower than that of the original fixed training device, so that the needs of wiring error finding training and assessment can be met with less capital investment.

[0108] Optional, reference Figure 5 The current transformer group 8 includes a first current transformer 81 and a second current transformer 82; the first end 811 of the first current transformer 81 is electrically connected to the first three-phase current terminal IAK11, the second end 812 of the first current transformer 81 is electrically connected to the second three-phase current terminal IAK12, the first end 821 of the second current transformer 82 is electrically connected to the third three-phase current terminal ICK11, and the second end 822 of the second current transformer 82 is electrically connected to the fourth three-phase current terminal ICK12.

[0109] Figure 8 is a schematic diagram of a structure including an optical coupler detection group provided according to an embodiment of the present invention, and optionally, reference Figure 8, the wrong wiring training device also includes an optocoupler detection group G, which is used to detect whether the first three-phase voltage terminal UA1, the second three-phase voltage terminal UB1 and the third three-phase voltage terminal UC1 are energized, and send the detection result to the controller 2;

[0110] The optical coupler detection group G includes a first optical coupler circuit G1, a second optical coupler circuit G2 and a third optical coupler circuit G3;

[0111] The first end of the first optical coupling circuit G1 is electrically connected to the first three-phase voltage terminal UA1, the second end is electrically connected to the second three-phase voltage terminal UB1, and the third end is electrically connected to the fourth end of the controller 2;

[0112] The first end of the second optical coupling circuit G2 is electrically connected to the second three-phase voltage terminal UB1, the second end is electrically connected to the third three-phase voltage terminal UC1, and the third end is electrically connected to the fifth end of the controller 2;

[0113] A first end of the third optical coupling circuit G3 is electrically connected to the third three-phase voltage terminal UC1 , a second end is electrically connected to the first three-phase voltage terminal UA1 , and a third end is electrically connected to the sixth end of the controller 2 .

[0114] Specifically, the connection modes of the first optocoupler circuit G1, the second optocoupler circuit G2, and the third optocoupler circuit G3 are similar. Therefore, the embodiment of the present invention takes the first optocoupler circuit G1 as an example for explanation, and the specific description is as follows:

[0115] When the first optocoupler circuit G1 detects a voltage difference between the first three-phase voltage terminal UA1 and the second three-phase voltage terminal UB1, it indicates that the first three-phase voltage terminal UA1 and / or the second three-phase voltage terminal UB1 are energized. At this time, the first optocoupler circuit G1 transmits the detection result to the controller 2, and the controller 2 issues a control instruction to limit the switching of the lines by the voltage wiring control component and the current wiring control component, thereby effectively preventing the current transformer from being open due to switching of the lines without power outage, and increasing the safety of the wrong wiring training device provided in the embodiment of the present invention.

[0116] Fig. 9 is a connection diagram including a first optocoupler circuit provided according to an embodiment of the present invention, Fig.10 is a connection diagram including a second optocoupler circuit provided according to an embodiment of the present invention, Fig.11 is a connection diagram including a third optocoupler circuit provided according to an embodiment of the present invention, optionally, refer to Figure 8-Figure 11 , the first optocoupler circuit G1 includes a first optocoupler U1, a first resistor R10 and a second resistor R8;

[0117] The first end d1 of the first optical coupler U1 is electrically connected to the first three-phase voltage terminal, the second end d2 of the first optical coupler U1 is electrically connected to the first end of the first resistor R10; the second end of the first resistor R10 is electrically connected to the second three-phase voltage terminal; the third end d3 of the first optical coupler U1 is electrically connected to the fourth end of the controller 2; the first end of the second resistor R8 is electrically connected to the fourth end of the controller 2; the fourth end d4 of the first optical coupler U1 is grounded;

[0118] The second optical coupling circuit G2 includes a second optical coupling U2, a third resistor R9 and a fourth resistor R7;

[0119] The first end d5 of the second optical coupler U2 is electrically connected to the second three-phase voltage terminal; the second end d6 of the second optical coupler U2 is electrically connected to the first end of the third resistor R9; the second end of the third resistor is electrically connected to the third three-phase voltage terminal; the third end d7 of the second optical coupler U2 is electrically connected to the fifth end of the controller 2; the first end of the fourth resistor R7 is electrically connected to the fifth end of the controller; the fourth end d8 of the second optical coupler U2 is grounded;

[0120] The third optical coupling circuit G3 includes a third optical coupling U3, a fifth resistor R12 and a sixth resistor R11;

[0121] The first end d9 of the third optocoupler U3 is electrically connected to the third three-phase voltage terminal; the second end d10 of the third optocoupler U3 is electrically connected to the first end of the fifth resistor R12; the second end of the fifth resistor R12 is electrically connected to the first three-phase voltage terminal; the third end d11 of the third optocoupler U3 is electrically connected to the sixth end of the controller 2; the first end of the sixth resistor R11 is electrically connected to the sixth end of the controller; the fourth end d12 of the third optocoupler U3 is grounded.

[0122] Specifically, the connection modes of the first optocoupler circuit G1, the second optocoupler circuit G2, and the third optocoupler circuit G3 are similar. Therefore, the embodiment of the present invention takes the first optocoupler circuit G1 as an example for explanation, and the specific description is as follows:

[0123] When there is a voltage difference between the first end d1 of the first optocoupler U1 and the second end d2 of the first optocoupler U1, the light-emitting diode in the first optocoupler U1 is turned on and emits light, causing the third end d3 of the first optocoupler U1 to be turned on and the fourth end d4 of the first optocoupler U1, and the third end d3 of the first optocoupler U1 presents a low level. Since the third end d3 of the first optocoupler U1 is electrically connected to the fourth end of the controller 2, the first optocoupler U1 will transmit the low level presented by the third end d3 of the first optocoupler U1 to the controller 2. The controller 2 will make a control instruction to limit the switching of the voltage wiring control component and the current wiring control component according to the received low-level signal, thereby effectively preventing the current transformer from being open due to switching of the lines when there is no power outage.

[0124] Optional, such as Figure 1 and Figure 4As shown, the controller 2 is also used to send a wiring mode display instruction to the touch display component 1 after sending the first control instruction and the second control instruction;

[0125] The touch display component 1 is also used to display the wiring mode image between the three-phase voltage terminal 6 and the voltage terminal of the three-phase electric energy meter 3, and the wiring mode image between the three-phase current terminal 7 and the current terminal of the three-phase electric energy meter 3 after receiving the wiring mode display instruction.

[0126] Exemplarily, when the first control instruction sent by the controller 2 is as follows Figure 6 The control terminal a1 of the first voltage terminal relay K1, the control terminal a5 of the fifth voltage terminal relay K5 and the control terminal a9 of the ninth voltage terminal relay K9 are turned on, and at this time, the first three-phase voltage terminal UA1 is connected to the first voltage terminal Ua2 of the electric energy meter, the second three-phase voltage terminal UB1 is connected to the second voltage terminal Ub2 of the electric energy meter, and the third three-phase voltage terminal Uc2 is connected to the third voltage terminal Uc2 of the electric energy meter; when the second control instruction sent by the controller 2 is as follows Figure 7 The control terminal b1 of the first current terminal relay K10, the control terminal b6 of the sixth current terminal relay K15, the control terminal b12 of the twelfth current terminal relay K21 and the control terminal b15 of the fifteenth current terminal relay K24 are turned on, and at this time, a wiring mode is formed in which the first three-phase current terminal IAK11 is connected to the first current terminal Iak21 of the electric energy meter, the second three-phase current terminal IAK12 is connected to the second current terminal Iak22 of the electric energy meter, the third three-phase current terminal ICK11 is connected to the fourth current terminal Ick22 of the electric energy meter, and the fourth three-phase current terminal ICK12 is connected to the third current terminal Ick21 of the electric energy meter. According to the above wiring mode, the controller 2 sends a wiring mode display instruction to the touch display component 1. After receiving the wiring mode display instruction, the touch display component 1 forms the following wiring mode. Figure 4 Wiring diagram image shown.

[0127] Fig.12 is a connection diagram including a touch display component provided according to an embodiment of the present invention, and optionally, reference Fig.12 The first end of the controller 2 includes a first signal receiving end 21 and a first signal transmitting end 22, and the touch display component 1 includes:

[0128] The level conversion module 11 and the display screen module 12, the first signal transmitting end 111 of the level conversion module 11 is electrically connected to the first signal receiving end 21 of the controller 2; the first signal receiving end 112 of the level conversion module 11 is electrically connected to the first signal transmitting end 22 of the controller 2; the second signal transmitting end 113 of the level conversion module 11 is electrically connected to the signal receiving end 121 of the display screen module 12; the second signal receiving end 114 of the level conversion module 11 is electrically connected to the signal transmitting end 122 of the display screen module 12.

[0129] Specifically, when the controller 2 controls the display screen module 12 to display different pictures, the level conversion module 11 converts the TTL high level output by the controller 2 into an RS232 low level suitable for recognition by the display screen module 12, which can better realize the control of the display screen module 12 by the controller 2; when the information obtained by the display screen module 12 needs to be transmitted to the controller 2, the RS232 low level output by the display screen module 12 needs to be converted into a TTL high level suitable for recognition by the controller 2, which can better realize the feedback of the display screen module 12 to the controller 2.

[0130] Fig.13 is a schematic diagram of the internal structure of the overcurrent protection module provided according to an embodiment of the present invention, and optionally, reference Figure 1 and Fig.13 , the incorrect wiring training set also includes:

[0131] A first overcurrent protection module M and a second overcurrent protection module N;

[0132] The first overcurrent protection module M is electrically connected between the three-phase voltage wiring terminal 6 and the first end of the voltage wiring control component 4;

[0133] The second overcurrent protection module N is electrically connected between the three-phase current wiring terminal 7 and the first end of the current wiring control component 5 .

[0134] The first overcurrent protection module M includes three fuses, namely, the first voltage fuse M1, the second voltage fuse M2 and the third voltage fuse M3; the second overcurrent protection module N includes four fuses, namely, the first current fuse N1, the second current fuse N2, the third current fuse N3 and the fourth current fuse N4. Specifically, the first overcurrent protection module M is connected between the three-phase voltage terminal 6 and the first end of the voltage wiring control component 4, and the second overcurrent protection module N is installed between the three-phase current terminal 7 and the first end of the current wiring control component 5, which can protect the circuit and prevent the wrong wiring training device from being damaged when the voltage or current is too large.

[0135] Exemplarily, the first voltage fuse M1 is installed between the first ends of the first voltage terminal relay, the second voltage terminal relay and the third voltage terminal relay and the first three-phase voltage terminal, the second voltage fuse M2 is installed between the first ends of the fourth voltage terminal relay, the fifth voltage terminal relay and the sixth voltage terminal relay and the second three-phase voltage terminal, the third voltage fuse M3 is installed between the first ends of the seventh voltage terminal relay, the eighth voltage terminal relay and the ninth voltage terminal relay and the third three-phase voltage terminal; the first current fuse N1 is installed between the first current terminal relay, the second current terminal relay, the third current terminal relay and the fourth current terminal The first end of the relay is between the first three-phase current terminal, the second current fuse N2 is installed between the first end of the fifth current terminal relay, the sixth current terminal relay, the seventh current terminal relay and the eighth current terminal relay and the second three-phase current terminal, the third current fuse N3 is installed between the first end of the ninth current terminal relay, the tenth current terminal relay, the eleventh current terminal relay and the twelfth current terminal relay and the third three-phase current terminal, and the fourth current fuse N4 is installed between the first end of the thirteenth current terminal relay, the fourteenth current terminal relay, the fifteenth current terminal relay and the sixteenth current terminal relay and the fourth three-phase current terminal

[0136] Specifically, Fig.14 is a circuit diagram of a power module provided according to an embodiment of the present invention, such as Fig.14 As shown, the power module includes multiple resistors R1-R6, multiple capacitors C10, C20, C40, C50, C60, C70 and C100, a voltage conversion chip Y2, multiple ground terminals GND and a diode D1. The power module is specifically used to provide 5V and 12V power supplies for the controller, voltage terminal relays, current terminal relays, drive chips and optocoupler detection groups.

[0137] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0138] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wrong wiring training device, characterized in that: include: Touch display component, controller, three-phase electric energy meter, voltage wiring control component, current wiring control component, three-phase voltage terminal, three-phase current terminal and current transformer group; wherein, The touch display component is electrically connected to a first end of the controller, the control end of the voltage wiring control component is electrically connected to a second end of the controller, and the control end of the current wiring control component is electrically connected to a third end of the controller; The three-phase voltage terminal is used to connect to a three-phase power supply, and the three-phase voltage terminal is electrically connected to a first end of a voltage wiring control component; the second end of the voltage wiring control component is electrically connected to a voltage terminal of the three-phase electric energy meter; The three-phase current terminal is used to be connected to the current transformer group, and the three-phase current terminal is electrically connected to the first end of the current wiring control component; the second end of the current wiring control component is electrically connected to the current terminal of the three-phase electric energy meter; The touch display component is used to display the wiring mode options, obtain the wiring mode options selected by the user, and send the wiring mode information to the controller according to the wiring mode options selected by the user; The controller is used to send a first control instruction to the voltage wiring control component and a second control instruction to the current wiring control component after receiving the wiring mode information; The voltage wiring control component is used to adjust the wiring mode between the three-phase voltage wiring terminal and the voltage wiring terminal of the three-phase electric energy meter according to the first control instruction after receiving the first control instruction; The current wiring control component is used to adjust the wiring mode between the three-phase current wiring terminal and the current wiring terminal of the three-phase electric energy meter according to the second control instruction after receiving the second control instruction; The three-phase voltage terminal includes a first three-phase voltage terminal, a second three-phase voltage terminal and a third three-phase voltage terminal; the voltage terminal of the three-phase electric energy meter includes a first voltage terminal of the electric energy meter, a second voltage terminal of the electric energy meter and a third voltage terminal of the electric energy meter; The three-phase current connection terminals include a first three-phase current terminal, a second three-phase current terminal, a third three-phase current terminal and a fourth three-phase current terminal; the current connection terminals of the three-phase electric energy meter include a first electric energy meter current terminal, a second electric energy meter current terminal, a third electric energy meter current terminal and a fourth electric energy meter current terminal; It also includes an optical coupler detection group, which is used to detect whether the first three-phase voltage terminal, the second three-phase voltage terminal and the third three-phase voltage terminal are energized, and send the detection result to the controller; The optical coupler detection group includes a first optical coupler circuit, a second optical coupler circuit and a third optical coupler circuit; The first end of the first optical coupling circuit is electrically connected to the first three-phase voltage terminal, the second end is electrically connected to the second three-phase voltage terminal, and the third end is electrically connected to the fourth end of the controller; The first end of the second optical coupling circuit is electrically connected to the second three-phase voltage terminal, the second end is electrically connected to the third three-phase voltage terminal, and the third end is electrically connected to the fifth end of the controller; The first end of the third optocoupler circuit is electrically connected to the third three-phase voltage terminal, the second end is electrically connected to the first three-phase voltage terminal, and the third end is electrically connected to the sixth end of the controller.

2. The incorrect wiring training device according to claim 1, characterized in that: The voltage wiring control component includes nine voltage terminal relays; the nine voltage terminal relays are respectively a first voltage terminal relay, a second voltage terminal relay ... an eighth voltage terminal relay and a ninth voltage terminal relay; The second end of the controller includes 9 voltage control sub-ends, and the control end of the first voltage terminal relay to the control end of the ninth voltage terminal relay are electrically connected to the 9 voltage control sub-ends in a one-to-one correspondence; The first ends of the first voltage terminal relay, the second voltage terminal relay and the third voltage terminal relay are all electrically connected to the first three-phase voltage terminal, and the second ends of the first voltage terminal relay, the second voltage terminal relay and the third voltage terminal relay are electrically connected to the first voltage terminal, the second voltage terminal and the third voltage terminal of the electric energy meter respectively in a one-to-one correspondence; The first ends of the fourth voltage terminal relay, the fifth voltage terminal relay and the sixth voltage terminal relay are all electrically connected to the second three-phase voltage terminal, and the second ends of the fourth voltage terminal relay, the fifth voltage terminal relay and the sixth voltage terminal relay are electrically connected to the first voltage terminal, the second voltage terminal and the third voltage terminal of the electric energy meter respectively in a one-to-one correspondence; The first ends of the seventh voltage terminal relay, the eighth voltage terminal relay and the ninth voltage terminal relay are all electrically connected to the third three-phase voltage terminal, and the second ends of the seventh voltage terminal relay, the eighth voltage terminal relay and the ninth voltage terminal relay are respectively electrically connected to the first voltage terminal, the second voltage terminal and the third voltage terminal of the electric energy meter in a one-to-one correspondence.

3. The incorrect wiring training device according to claim 1, characterized in that: The current wiring control component includes sixteen current terminal relays; the sixteen current terminal relays are respectively a first current terminal relay, a second current terminal relay ... a fifteenth current terminal relay and a sixteenth current terminal relay; The third end of the controller includes sixteen current control sub-ends, and the control ends of the sixteen current terminal relays are electrically connected to the sixteen current control sub-ends in a one-to-one correspondence; The first ends of the first current terminal relay, the second current terminal relay, the third current terminal relay and the fourth current terminal relay are all electrically connected to the first three-phase current terminal, and the second ends of the first current terminal relay, the second current terminal relay, the third current terminal relay and the fourth current terminal relay are electrically connected to the first current terminal, the second current terminal, the third current terminal and the fourth current terminal of the electric energy meter respectively in a one-to-one correspondence; The first ends of the fifth current terminal relay, the sixth current terminal relay, the seventh current terminal relay and the eighth current terminal relay are all electrically connected to the second three-phase current terminal, and the second ends of the fifth current terminal relay, the sixth current terminal relay, the seventh current terminal relay and the eighth current terminal relay are electrically connected to the first current terminal, the second current terminal, the third current terminal and the fourth current terminal of the electric energy meter respectively in a one-to-one correspondence; The first ends of the ninth current terminal relay, the tenth current terminal relay, the eleventh current terminal relay and the twelfth current terminal relay are all electrically connected to the third three-phase current terminal, and the second ends of the ninth current terminal relay, the tenth current terminal relay, the eleventh current terminal relay and the twelfth current terminal relay are electrically connected to the first current terminal of the electric energy meter, the second current terminal of the electric energy meter, the third current terminal of the electric energy meter and the fourth current terminal of the electric energy meter respectively in a one-to-one correspondence; The first ends of the thirteenth current terminal relay, the fourteenth current terminal relay, the fifteenth current terminal relay and the sixteenth current terminal relay are all electrically connected to the fourth three-phase current terminal, and the second ends of the thirteenth current terminal relay, the fourteenth current terminal relay, the fifteenth current terminal relay and the sixteenth current terminal relay are respectively electrically connected to the first current terminal, the second current terminal, the third current terminal and the fourth current terminal of the electric energy meter.

4. The incorrect wiring training device according to claim 1, characterized in that: The current transformer group includes a first current transformer and a second current transformer; the first end of the first current transformer is electrically connected to the first three-phase current terminal, the second end of the first current transformer is electrically connected to the second three-phase current terminal, the first end of the second current transformer is electrically connected to the third three-phase current terminal, and the second end of the second current transformer is electrically connected to the fourth three-phase current terminal.

5. The incorrect wiring training device according to claim 1, characterized in that: The first optocoupler circuit includes a first optocoupler, a first resistor and a second resistor; The first end of the first optical coupler is electrically connected to the first three-phase voltage terminal, the second end of the first optical coupler is electrically connected to the first end of the first resistor; the second end of the first resistor is electrically connected to the second three-phase voltage terminal; the third end of the first optical coupler is electrically connected to the fourth end of the controller; the first end of the second resistor is electrically connected to the fourth end of the controller; the fourth end of the first optical coupler is grounded; The second optocoupler circuit includes a second optocoupler, a third resistor and a fourth resistor; The first end of the second optical coupler is electrically connected to the second three-phase voltage terminal; the second end of the second optical coupler is electrically connected to the first end of the third resistor; the second end of the third resistor is electrically connected to the third three-phase voltage terminal; the third end of the second optical coupler is electrically connected to the fifth end of the controller; the first end of the fourth resistor is electrically connected to the fifth end of the controller; the fourth end of the second optical coupler is grounded; The third optical coupler circuit comprises a third optical coupler, a fifth resistor and a sixth resistor; The first end of the third optocoupler is electrically connected to the third three-phase voltage terminal; the second end of the third optocoupler is electrically connected to the first end of the fifth resistor; the second end of the fifth resistor is electrically connected to the first three-phase voltage terminal; the third end of the third optocoupler is electrically connected to the sixth end of the controller; the first end of the sixth resistor is electrically connected to the sixth end of the controller; and the fourth end of the third optocoupler is grounded.

6. The incorrect wiring training device according to claim 1, characterized in that: The controller is further configured to send a wiring mode display instruction to the touch display component after sending the first control instruction and the second control instruction; The touch display component is also used to display the wiring mode image between the three-phase voltage terminal and the voltage terminal of the three-phase electric energy meter, and the wiring mode image between the three-phase current terminal and the current terminal of the three-phase electric energy meter after receiving the wiring mode display instruction.

7. The incorrect wiring training device according to claim 1, characterized in that: The first end of the controller includes a first signal receiving end and a first signal transmitting end, and the touch display component includes: A level conversion module and a display screen module, wherein the first signal transmitting end of the level conversion module is electrically connected to the first signal receiving end of the controller; the first signal receiving end of the level conversion module is electrically connected to the first signal transmitting end of the controller; the second signal transmitting end of the level conversion module is electrically connected to the signal receiving end of the display screen module; the second signal receiving end of the level conversion module is electrically connected to the signal transmitting end of the display screen module.

8. The incorrect wiring training device according to claim 1, characterized in that: Also includes: A first overcurrent protection module and a second overcurrent protection module; The first overcurrent protection module is electrically connected between the three-phase voltage wiring terminal and the first end of the voltage wiring control component; The second overcurrent protection module is electrically connected between the three-phase current wiring terminal and the first end of the current wiring control component.

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