Electric energy meter metering wiring simulation practical training device

Abstract

The utility model provides an electric energy meter metering wiring simulation practical training device which comprises a tablet computer, an electric energy meter, a program control virtual load power supply, a program control fault unit, a communication forwarding control module and a junction box. Various wiring faults are preset in the tablet computer, and the tablet computer is used for displaying various wiring faults on the current electric energy meter metering wiring simulation practical training device in real time, issuing the wiring faults and controlling the output of a virtual load power supply; the communication forwarding control module comprises a communication transponder and a wireless router, and the communication transponder is connected with the wireless router, the program control virtual load power supply and the program control fault unit; the wireless router is used for bridging the tablet computer and the communication forwarding control module; the program-controlled virtual load power supply is used for outputting virtual load power required by operation of the electric energy meter; the program control fault unit is used for combining wiring modes required by wiring faults; the junction box carries out live replacement or wrong rerouting on the electric energy meter; the electric energy meter is used for operating in different wiring fault states, so that a user can find problems.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of power equipment simulation, concretely relates to a kind of electric energy metering connection simulation training device. BACKGROUND

[0002] At present, under the condition of the rapid development of power grid, the input quantity of electric energy metering device and other measurement devices is increasingly large, and more and more operation and maintenance inspection of measurement devices relies on power workers to analyze and troubleshoot. The number of operation and maintenance personnel is large, but the level is uneven, and there is a great risk in safety production. Improving the technical and skill level of on-site operation is of great significance to promote the development of power grid and improve power supply reliability.

[0003] To improve the skill level of operation and maintenance personnel in checking electric energy meter connection, professional skill training is still needed. The existing electric energy metering connection simulation training device is a large device, and the weight is less than one hundred kilograms, and more than several tons. Due to the inconvenience of large device, users can only be trained at fixed time and place, and cannot reproduce customer electric energy metering connection fault state in operation and maintenance site, and cannot use fragmented time to learn and train anytime and anywhere.

[0004] In addition, some simulation devices use mains to simply build circuit, which can only simulate part of electric energy metering connection state, and safety protection is not set in simulation device, which may cause electric shock and other personal safety accidents, and the safety factor is low.

[0005] In order to solve the above problems, an electric energy metering connection simulation training device is provided, so that operation and maintenance personnel can learn and train anytime and anywhere without being affected by region and large equipment, and electric shock and other personal safety accidents will not occur, and the safety factor is high. SUMMARY

[0006] In order to solve the problems in the prior art, an electric energy metering connection simulation training device is provided, which can simulate various fault combinations of electric energy metering connection, and realize volume reduction, easy carrying and reduction of user cost.

[0007] The technical scheme adopted by the utility model is:

[0008] The utility model provides a kind of electric energy metering connection simulation training device, including tablet computer, electric energy meter, program-controlled dummy load power supply, program-controlled fault unit, communication forwarding control module and connection box;

[0009] The tablet computer is preset with various connection faults, for real-time display of various connection faults on the electric energy metering connection simulation training device, and for issuing connection faults and output control of dummy load power supply;

[0010] The communication forwarding control module comprises a communication forwarder and a wireless router, the communication forwarder comprises a LAN interface and a CAN interface, and is used for realizing free conversion of LAN and CAN communication protocols;

[0011] The LAN interface of the communication forwarder is connected with the LAN interface of the wireless router, and the CAN interface of the communication forwarder is connected with the CAN interfaces of the program-controlled dummy load power supply and the program-controlled fault unit.

[0012] The wireless router is used for bridging the tablet computer and the communication forwarding control module to realize WiFi wireless communication.

[0013] The program-controlled dummy load power supply is controlled by the tablet computer, and outputs the dummy load power supply required by the electric energy meter according to the command issued by the tablet computer.

[0014] The program-controlled fault unit is connected between the junction box and the program-controlled dummy load power supply, and is controlled by the tablet computer to combine the wiring mode required by the wiring fault according to the wiring fault issued by the tablet computer.

[0015] The junction box is used for connecting the electric energy meter and the program-controlled fault unit to realize live replacement or error re-wiring of the electric energy meter.

[0016] The electric energy meter is used for running in different wiring fault states to help users find problems.

[0017] Based on the above, the program-controlled fault unit comprises a control circuit and a relay circuit, the control circuit is connected with the communication forwarder, the control circuit further controls the relay circuit, and the relay of the relay circuit is connected between the junction box and the program-controlled dummy load power supply.

[0018] Based on the above, the electric energy meter is a three-phase three-wire and three-phase four-wire meter of any manufacturer and model.

[0019] Based on the above, the tablet computer adopts a mainstream Windows system touch screen all-in-one machine.

[0020] Based on the above, a box body made of a wooden base plate and an aluminum alloy material is further included, and the box body is provided with a draw bar and universal wheels.

[0021] Based on the above, the box body comprises an upper box body and a lower box body.

[0022] The lower box body comprises an outer box body and an inner box body, the outer box body comprises an upper outer box body and a lower outer box body, the inner box body is pullably arranged in the lower outer box body, the upper box body is reversibly covered on the upper outer box body, the box height of the upper box body is equal to the box height of the upper outer box body, and the inner box body is used for supporting the upper box body when the upper box body is reversed;

[0023] The program-controlled dummy load power supply, the program-controlled fault unit and the communication forwarding control module are arranged in the inner box body.

[0024] The electric energy meter and the junction box are sequentially arranged on the front surface of a mounting plate, one end of the mounting plate is hingedly connected to the bottom surface of the upper outer box body, and the back surface of the mounting plate and the bottom surface of the upper outer box body are correspondingly provided with a supporting rod used for supporting the mounting plate in use.

[0025] The tablet computer is arranged in the upper box body through a mounting rack.

[0026] The universal wheel comprises a first universal wheel arranged on the lower outer box body and a second universal wheel arranged on the inner box body.

[0027] The utility model discloses relative prior art has substantial feature and progress, specifically speaking:

[0028] 1, the utility model discloses a " miniaturization portable " concept is set up tablet computer, electric energy meter and junction box, and a variety of electric energy meter measurement error wiring model is prepositioned in tablet computer, can realize a variety of electric energy meter measurement wiring check simulation training.

[0029] 2, the utility model discloses through the design of box body structure, and tablet computer, electric energy meter, program-controlled dummy load power supply, program-controlled fault unit, communication forwarding control module and junction box can be loaded into the space of one suitcase size, can be carried to the operation and maintenance field reproduction customer electric energy meter measurement wiring fault state in very convenient, utilizes the fragmented time and carries out learning and training at any time and anywhere.

[0030] 3, the utility model discloses dummy load power supply, safe and reliable, has solved the safety risk problem that the field adopts commercial power brings.

[0031] 4, the utility model discloses compatible three -phase three -wire and three -phase four -wire meter, no matter manufacturer and model, can solve the compatible problem of different meter. DRAWINGS

[0032] Figure 1 It is the principle diagram of the utility model.

[0033] Figure 2 It is the appearance schematic view of the box body of the utility model.

[0034] Figure 3 is a front view structural schematic diagram of the utility model.

[0035] Figure 4 is a side view structural schematic diagram of the utility model.

[0036] Figure 5 is a top view structural schematic diagram of the utility model.

[0037] Figure 6 is a top view structural schematic diagram of the box of the utility model.

[0038] Figure 7 is a wiring fault mode of the program control fault unit of the utility model.

[0039] Figure 8 is another wiring fault mode of the program control fault unit of the utility model.

[0040] In the drawing: box 1;Tablet computer 2;Electric energy meter 3;Program control dummy load power supply 4;Program control fault unit 5;Communication forwarding control module 6;Junction box 7;Mounting plate 8;Supporting rod 9;Universal wheel 10;Pull rod 11;Mounting rack 12;Upper box 1-1;Lower box 1-2;Inner box 1-21;Upper outer box 1-22;Lower outer box 1-23;First universal wheel 10-1;Second universal wheel 10-2. DETAILED DESCRIPTION

[0041] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further described in detail below in combination with the drawings and specific embodiments.It should be explained that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0042] As Figures 1-6 shown, the embodiment provides a kind of electric energy metering connection simulation training device, including box 1, tablet computer 2, electric energy meter 3, program control dummy load power supply 4, program control fault unit 5, communication forwarding control module 6 and junction box 7.

[0043] The tablet computer 2, prestore various wiring faults, for real-time display the various wiring faults on current electric energy metering connection simulation training device, also be used to issue and the output control of dummy load power of wiring fault;

[0044] Specifically, the tablet computer adopts mainstream Windows system touch screen all-in-one machine.

[0045] In some other embodiments, the tablet 2 also preloads correct and incorrect drawings of various phasor diagrams and wiring diagrams, expressions of power, power factor and correction coefficient; the tablet 2 is also used to display correct and incorrect drawings of various phasor diagrams and wiring diagrams, expressions of power, power factor and correction coefficient in real time. In specific implementation, by embedding PC programs (various wiring faults, correct and incorrect drawings of various phasor diagrams and wiring diagrams, etc.) in the tablet 2, the program-controlled fault unit 5 can be visually commanded to set a fault, and after the tablet 2 displays the set fault, the phasor diagram, power expression, etc. of the electric energy meter working in this fault state are displayed, that is, the information corresponding to each fault can be directly displayed on the tablet 2 for the teacher or student to check.

[0046] The communication forwarding control module 6 includes a communication forwarder and a wireless router, the communication forwarder includes a LAN interface and a CAN interface, and is used to realize free conversion between LAN and CAN communication protocols. The LAN interface of the communication forwarder is connected with the LAN interface of the wireless router, and the CAN interface of the communication forwarder is connected with the CAN interfaces of the program-controlled dummy load power supply and the program-controlled fault unit. The wireless router is used to bridge the tablet 2 and the communication forwarding control module 6 to perform WiFi wireless communication.

[0047] The program-controlled dummy load power supply 4 is controlled by the tablet 2 to output the dummy load power supply required by the electric energy meter 3 to operate according to the command issued by the tablet 2.

[0048] The program-controlled fault unit 5 is connected between the terminal box 7 and the program-controlled dummy load power supply 4 and is controlled by the tablet 2 to combine the wiring mode required by the wiring fault according to the wiring fault issued by the tablet 2.

[0049] Specifically, the program-controlled fault unit 5 includes a control circuit and a relay circuit, the control circuit is connected with the communication forwarder, and the control circuit also controls the connection of the relay circuit, and the relay of the relay circuit is connected between the terminal box 7 and the program-controlled dummy load power supply 4.

[0050] The terminal box 7 is used to connect the electric energy meter 3 and the program-controlled fault unit 5 to perform live replacement or error re-wiring of the electric energy meter.

[0051] The electric energy meter 3 is used to operate in different wiring fault states for the user to find problems.

[0052] Specifically, the electric energy meter can be a three-phase three-wire and three-phase four-wire meter of any manufacturer and model.

[0053] In practical use, the user only needs to select various preset wiring faults of the electricity meter on the tablet computer 2, and the electricity meter 3 can run under different wiring fault states to help the user find the problem.

[0054] The electricity meter metering wiring simulation training device of this utility model is powered by a programmable virtual load power supply. The entire device is controlled by a DC 12V weak current. The AC voltage and current signals output by the programmable virtual load power supply are also virtual loads. Any voltage short circuit or current open circuit caused during use will not cause electric shock or other personal safety accidents. Moreover, the device will issue an alarm signal and cut off the output immediately to protect the user's safety.

[0055] The implementation method of this utility model:

[0056] First, the instructor or examiner selects the wiring fault combination to be trained and the wiring method of the energy meter 3 on the tablet computer 2. The tablet computer 2 transmits the information wirelessly to the communication forwarding control module 6 via WiFi. The communication forwarding control module 6 converts the information to CAN protocol via LAN protocol and transmits it to the programmable fault unit 5 and the programmable virtual load power supply 4. The control circuit of the programmable fault unit 5 activates different relay groups according to the received commands, thereby combining the required wiring method. The programmable virtual load power supply 4 outputs the three-phase voltage and three-phase current of the energy meter 3 according to the received commands, and reaches the energy meter 3 through the junction box 7, so that the energy meter 3 operates under the corresponding wiring fault state. This allows students or examinees to find out the wiring method of the energy meter 3, measure the working electrical parameters, draw wiring diagrams and phasor diagrams, and write the power expression and correction coefficient to complete the training.

[0057] like: Figure 7 In the wiring fault mode, the normally output voltage phase sequence of the programmable virtual load power supply 4 is UA, UB, UC, UN. After receiving the command, the programmable fault unit 5 activates the relay group to switch the input voltage phase sequence to UB, UC, UA, UN, and transmits it to the junction box 7, and finally to the energy meter 3. At this time, the fault setting is completed, and the energy meter 3 operates under the incorrect wiring mode of UB, UC, UA, UN.

[0058] like: Figure 8The programmable dummy load power supply 4 normally outputs current phase sequence IA+IA-, IB+IB-, IC+IC-, the programmable fault unit 5 receives the command and then the action relay group switches the input current phase sequence to IA-IA+, IB-IB+, IC-IC+, and then transmits to the terminal box 7 and finally to the electric energy meter 3, at this time, the fault setting is completed, and the electric energy meter 3 works in the wrong wiring mode of IA-IA+, IB-IB+, IC-IC+.

[0059] In some exemplary embodiments, the box 1 is made of wooden base plate plus aluminum alloy material, and is provided with a pull rod 11 and universal wheels 10.

[0060] Embodiment 2

[0061] The embodiment provides a specific box structure.

[0062] The box 1 comprises an upper box 1-1 and a lower box 1-2, the lower box 1-2 comprises an outer box and an inner box 1-21, the outer box comprises an upper outer box 1-22 and a lower outer box 1-23, the inner box 1-21 is pullably arranged in the lower outer box 1-23, the upper box 1-1 is reversibly covered on the upper outer box 1-22, the box height of the upper box 1-1 is equal to the box height of the upper outer box 1-22, so that when the upper box 1-1 is reversed, the inner box 1-21 is pulled out to support the upper box 1-1.

[0063] The programmable dummy load power supply 4, the programmable fault unit 5 and the communication forwarding control module 6 are arranged in the inner box 1-21.

[0064] The electric energy meter 3 and the terminal box 7 are sequentially arranged on the front surface of a mounting plate 8, one end of the mounting plate 8 is hingedly connected to the bottom surface of the upper outer box 1-22, and the back surface of the mounting plate 8 and the bottom surface of the upper outer box 1-22 are correspondingly provided with a supporting rod 9 for supporting the mounting plate 8 when in use.

[0065] The tablet computer 2 is arranged in the upper box 1-1 through a mounting frame 12.

[0066] The universal wheels 10 comprise first universal wheels 10-1 arranged on the lower outer box 1-23 and second universal wheels 10-2 arranged on the inner box 1-21.

[0067] The tablet computer 2, the electric energy meter 3, the terminal box 7 and the like of the utility model can be folded into the box 1 when not in use or during transportation, and the whole box 1 is only as large as a luggage case after combination, so that the box 1 is convenient to carry to the work site, a practical training room or any other place to carry out practical training at any time and any place.

[0068] The above merely describes a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A simulation training device for electricity meter wiring, characterized in that: The device comprises a tablet computer, an electric energy meter, a programmable dummy load power supply, a programmable fault unit, a communication forwarding control module and a junction box. The tablet computer is pre-installed with various wiring faults and is used for real-time display of various wiring faults on the electric energy meter wiring simulation training device, and is also used for issuing wiring faults and output control of the dummy load power supply. The communication forwarding control module comprises a communication forwarder and a wireless router. The LAN interface of the communication forwarder is connected with the LAN interface of the wireless router, and the CAN interface of the communication forwarder is connected with the CAN interfaces of the programmable dummy load power supply and the programmable fault unit. The wireless router is used for bridging the tablet computer and the communication forwarding control module to realize WiFi wireless communication. The programmable dummy load power supply is controlled by the tablet computer to output the dummy load power supply required by the electric energy meter according to the command issued by the tablet computer. The programmable fault unit is connected between the junction box and the programmable dummy load power supply and is controlled by the tablet computer to combine the wiring mode required by the wiring fault according to the wiring fault issued by the tablet computer. The junction box is used for connecting the electric energy meter and the programmable fault unit to realize live replacement or error re-wiring of the electric energy meter. The electric energy meter is used for running in different wiring fault states for users to find problems.

2. The electric energy metering connection simulation training device according to claim 1, characterized in that: The programmable fault unit comprises a control circuit and a relay circuit, the control circuit is connected with the communication forwarder, the control circuit also controls the relay circuit, and the relay of the relay circuit is connected between the junction box and the programmable dummy load power supply.

3. The electric energy metering connection simulation training device according to claim 2, characterized in that: The electric energy meter is a three-phase three-wire or three-phase four-wire meter of any manufacturer and model.

4. The electric energy meter wiring simulation training device according to claim 3, wherein: The tablet computer is a mainstream Windows system touch screen all-in-one machine.

5. The electric energy metering connection simulation training device according to any one of claims 1-4, characterized in that: The device further comprises a box body made of wooden base plate and aluminum alloy material, and the box body is provided with a draw bar and universal wheels.

6. The electric energy meter wiring simulation training device according to claim 5, wherein: The box body comprises an upper box body and a lower box body; The lower box body comprises an outer box body and an inner box body, the outer box body comprises an upper outer box body and a lower outer box body, the inner box body is pullably arranged in the lower outer box body, the upper box body is reversibly covered on the upper outer box body, the height of the upper box body is equal to the height of the upper outer box body, so that when the upper box body is reversed, the inner box body is pulled out to support the upper box body; The programmable dummy load power supply, the programmable fault unit and the communication forwarding control module are placed in the inner box body; The electric energy meter and the junction box are sequentially arranged on the front surface of a mounting plate, one end of the mounting plate is hingedly connected to the bottom surface of the upper outer box body, and the back surface of the mounting plate and the bottom surface of the upper outer box body are correspondingly provided with a supporting rod for supporting the mounting plate when in use. The tablet is arranged in the upper cabinet through a mounting frame; The universal wheels include a first universal wheel arranged on the lower outer cabinet and a second universal wheel arranged on the inner cabinet.

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