Spare power automatic switching auxiliary debugging device and use method thereof

Abstract

The invention discloses a spare power automatic switching auxiliary debugging device and a use method thereof, and relates to the technical field of electric power auxiliary tools, and the spare power automatic switching auxiliary debugging device is characterized by comprising a control box, the control box is provided with a wiring port and a human-computer interaction interface, and a power supply module, a single-chip microcomputer control unit and a relay unit are arranged between the human-computer interaction interface and the control box; the man-machine interaction interface is provided with a primary display interface, and the primary display interface comprises an input and output state indication module, a closing and opening coil simulation module, a closing and tripping time setting module and a manual operation button module. The backup power automatic switching verification device is improved by controlling the relay through the microcomputer type single-chip microcomputer, the size and the weight of the backup power automatic switching verification device are reduced, the operability is improved, carrying is convenient, on-site use of maintainers is facilitated, the risk of electric shock caused by manual short circuit of nodes is avoided, and the operation safety is improved; precision is high, manual short circuit of nodes is not needed, and working efficiency is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of power auxiliary tools, and in particular relates to a standby automatic switching auxiliary debugging device and a use method thereof. Background Art

[0002] The automatic backup device is a common safety automatic device in substations. It can improve the reliability and continuity of power supply by isolating the fault point and switching on the backup power supply. It is an important secondary operation equipment. Its full name is the automatic backup power supply device, which is an important part of the second and third lines of defense of the power grid. In recent years, with the expansion of the scale of the power grid, the number of automatic backup devices in the power system has expanded rapidly. In the commissioning of new substations and the renovation of old substations, the commissioning and verification of automatic backup devices has become an indispensable and important link.

[0003] There are two types of automatic switching devices: incoming line automatic switching and section automatic switching, each with two operating modes. When the working power supply trips due to a fault, if the voltage of the backup power supply meets the conditions, the automatic switching device will issue a command to trip the faulty line circuit breaker again to prevent the faulty line from being disconnected. After confirming that the faulty line circuit breaker has tripped, the circuit breaker of the backup power supply will be closed.

[0004] If the backup automatic transfer device does not operate correctly, a large amount of load will be lost, resulting in a waste of power resources and seriously affecting the safe and stable operation of the power grid. In order to ensure that there is no load loss after a line failure, the correct operation of the backup automatic transfer device plays a decisive role. Therefore, it is particularly important to verify the action logic of the backup automatic transfer device.

[0005] There are major risks in the commissioning and verification of the backup automatic switching device in the old substation, and there is a possibility of mis-exit circuit breaker. The AC quantity required for the existing backup automatic switching verification is generally provided by the analog quantities such as the output voltage and current of the microcomputer protection test device, and the input and output quantities are provided by the independent analog circuit breaker. The test system composed of these devices is large, heavy, costly, cumbersome to operate, complicated to connect, takes a long time to verify, and is not convenient for on-site verification.

[0006] Therefore, the current debugging of the backup automatic re-closing device adopts the method of short-circuiting nodes to simulate the action behavior of the circuit breaker. This method requires the cooperation of multiple people at the same time, there is a risk of electric shock when manually short-circuiting nodes, and the operation steps are cumbersome. When using this method for verification, there are a lot of human accidental factors, and repeated verification is required, which makes the work efficiency extremely low.

[0007] Therefore, in order to solve the above problems, it is necessary to provide a standby automatic switching auxiliary debugging device and a method of using the same. Summary of the invention

[0008] The technical problem to be solved by the present invention is to solve the deficiencies in the prior art and to design a new standby automatic start-up auxiliary debugging device. This standby automatic start-up auxiliary debugging device improves the standby automatic start-up verification device by utilizing a microcomputer-type single-chip microcomputer to control a relay, thereby reducing the size and weight of the standby automatic start-up verification device and improving its operability. It is easy to carry and is beneficial for maintenance personnel to use on site, thereby solving the problems of the existing test system required for the standby automatic start-up verification being large in size, heavy, high in cost, cumbersome in operation, complex in wiring, long in verification time, and inconvenient for on-site verification.

[0009] The solution adopted by the present invention to solve the technical problem is:

[0010] A kind of auxiliary debugging device for automatic start-up.

[0011] It is characterized in that

[0012] Including control box,

[0013] The control box is a rectangular frame.

[0014] The control box is provided with a wiring port.

[0015] The wiring port includes a normally open contact, a normally closed contact, a closing pulse input contact, an opening pulse input contact, a closing pulse output contact, and an opening pulse output contact.

[0016] The control box is provided with a power plug and a power switch.

[0017] The control box is provided with a human-machine interaction interface.

[0018] A power module, a single-chip control unit and a relay unit are arranged between the human-machine interaction interface and the control box.

[0019] The power module performs voltage stabilization operation on the input power supply.

[0020] The relay unit corresponds to a field relay,

[0021] The power module is connected to the power plug.

[0022] The single chip control unit outputs an action signal to actuate the corresponding relay in the relay unit according to the logic judgment.

[0023] The human-computer interaction interface is provided with at least one level display interface,

[0024] The primary display interface at least includes an input status indication module, an output status indication module, a closing and opening coil simulation module, a closing time setting module, a tripping time setting module and a manual operation button module.

[0025] As a preferred embodiment of the present invention, the input status indication module includes an A-phase input indicator light, a B-phase input indicator light, a C-phase input indicator light, a three-in-one input indicator light and a three-trip input indicator light.

[0026] The output status display module includes an A-phase output indicator light, a B-phase output indicator light, and a C-phase output indicator light.

[0027] The closing and opening coil simulation module includes the resistance value of the opening coil module and the resistance value of the closing coil module.

[0028] The closing time setting module includes a phase A closing setting button, a phase B closing setting button and a phase C closing setting button.

[0029] The trip time setting module includes an A-phase trip setting button, a B-phase trip setting button and a C-phase trip setting button.

[0030] As a preferred embodiment of the present invention, the A phase input indicator light includes an A1 close input indicator light, an A2 close input indicator light, an A1 jump input indicator light and an A2 jump input indicator light.

[0031] The B phase input indicator light includes a B1 close input indicator light, a B2 close input indicator light, a B1 jump input indicator light and a B2 jump input indicator light.

[0032] The C phase input indicator light includes a C1 closed input indicator light, a C2 closed input indicator light, a C1 tripped input indicator light, and a C2 tripped input indicator light;

[0033] The three-in-one indicator light comprises a first three-in-one indicator light and a second three-in-one indicator light;

[0034] The three-beat indicator light includes a first three-beat indicator light and a second three-beat indicator light.

[0035] The A phase output indicator light includes an A1 close output indicator light, an A2 close output indicator light, an A1 trip output indicator light, and an A2 trip output indicator light.

[0036] The B phase output indicator light includes a B1 close output indicator light, a B2 close output indicator light, a B1 trip output indicator light and a B2 trip output indicator light.

[0037] The C phase output indicator light includes a C1 close output indicator light, a C2 close output indicator light, a C1 jump output indicator light and a C2 jump output indicator light;

[0038] The resistance values ​​of the opening coil module and the closing coil module are both provided with a 44Ω button, a 110Ω button, a 220Ω button, a 440Ω button, an 880Ω button and an ∞ button;

[0039] The A-phase closing setting button includes an A1 closing setting button and an A2 closing setting button.

[0040] The B-phase closing setting button includes a B1 closing setting button and a B2 closing setting button.

[0041] The C-phase closing setting button includes a C1 closing setting button and a C2 closing setting button;

[0042] The A-phase trip setting button includes an A1 trip setting button and an A2 trip setting button.

[0043] The B-phase trip setting button includes a B1 trip setting button and a B2 trip setting button.

[0044] The C-phase trip setting button includes a C1 trip setting button and a C2 trip setting button.

[0045] As a preferred embodiment of the present invention, the normally open contact is provided with six circuits.

[0046] The normally closed contacts are provided with six paths.

[0047] The closing pulse input contacts are provided with six circuits.

[0048] The switch-off pulse input contacts are provided with six circuits.

[0049] The closing pulse output contacts are provided with six circuits.

[0050] The switch-off pulse output contacts are provided with six paths.

[0051] As a preferred embodiment of the present invention, the manual operation button module includes a close A1 button, a close B1 button, a close C1 button, a full close 1 button, a jump A1 button, a jump B1 button, a jump C1 button, a full jump 1 button, a first fault simulation button, a close A2 button, a close B2 button, a close C2 button, a full close 2 button, a jump A2 button, a jump B2 button, a jump C2 button, a full jump 2 button and a second fault simulation button.

[0052] As a preferred embodiment of the present invention, the first-level display interface is provided with Chinese character labels corresponding to the input status indication module, output status display module, closing and opening coil simulation module, closing time setting module, tripping time setting module and manual operation button module.

[0053] As a preferred embodiment of the present invention, eight vertices of the control box are all provided with anti-collision pads.

[0054] As a preferred implementation of the present invention, the human-computer interaction interface uses a 10-inch color screen.

[0055] As a preferred embodiment of the present invention, the control box is provided with two connection blocks.

[0056] The connecting block is provided with a rotating shaft,

[0057] The rotating shaft is connected with a handle.

[0058] A method for using a standby automatic input auxiliary debugging device,

[0059] It is characterized in that

[0060] It includes the following steps:

[0061] S1: Turn on the power switch;

[0062] S2: Set the resistance value of the opening coil module and the resistance value of the closing coil module;

[0063] S3: Click the closing time setting module and the tripping time setting module to set the closing time and the tripping time;

[0064] S4: Access the input signal from the relay protection test device;

[0065] S5: The output signal is connected to the relay protection test device.

[0066] Compared with the prior art, the present invention has the following beneficial effects:

[0067] The device of the present invention is based on the actual situation of the on-site debugging and verification process of the standby automatic start-up device, deeply analyzes and understands the action principle of the standby automatic start-up device, and improves the standby automatic start-up verification device by using a microcomputer-type single-chip microcomputer to control a relay.

[0068] This method not only reduces the size and weight of the standby automatic verification device, but also improves operability, makes it easy to carry, and is convenient for maintenance personnel to use on site. The device can reduce the number of operators, strictly avoids the risk of electric shock caused by manual short-circuiting of nodes, and improves operational safety; it has high precision, does not require manual short-circuiting of nodes, and there are no accidental human factors in the verification process, which greatly improves work efficiency.

[0069] The control box of the device of the present invention is provided with a human-machine interaction interface, a power module, a single-chip microcomputer control unit and a relay unit. The standby automatic switching device collects the nodes of the relay in the relay unit for logical judgment and outputs them to the single-chip microcomputer control unit. The single-chip microcomputer control unit collects the action of the standby automatic switching device, performs logical judgment, and acts on the corresponding relay. The relay nodes are fed back to the standby automatic switching device, so that the standby automatic switching device can operate correctly.

[0070] The device of the present invention is mainly used for the whole group test of relay protection device, and replaces the real circuit breaker in other test items. As a substitute equipment for the actual circuit breaker in the transmission test of the whole group system of relay protection and automatic device with switch, the action is accurate and reliable, and the action times are not limited. It can be auxiliary debugged many times as needed, which greatly improves the correctness and integrity of the test, minimizes the action times of the actual circuit breaker, and increases the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Figure 1 This is a structural schematic diagram of a standby automatic switching auxiliary debugging device proposed by the present invention;

[0072] Figure 2 This is a structural schematic diagram of a standby automatic switching auxiliary debugging device proposed by the present invention;

[0073] Figure 3 This is a structural schematic diagram of a standby automatic switching auxiliary debugging device proposed by the present invention;

[0074] Figure 4 The present invention provides a schematic diagram of a human-machine interaction interface of a standby automatic input auxiliary debugging device.

[0075] Description of reference numerals:

[0076] 1- Control box,

[0077] 2-Connection port,

[0078] 3-Normally open contact,

[0079] 4-Normally closed contact,

[0080] 5- Closing pulse input contact,

[0081] 6-Opening pulse input contact,

[0082] 7- Closing pulse output contact,

[0083] 8-Opening pulse output contact,

[0084] 9- Power plug,

[0085] 10- Power switch,

[0086] 11-Human-computer interaction interface,

[0087] 12- Crash pad,

[0088] 13-Connection block,

[0089] 14-Handle. DETAILED DESCRIPTION

[0090] The specific implementation of the present invention is described below in conjunction with the accompanying drawings and embodiments:

[0091] It should be noted that the structures, colors, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0092] At the same time, in the description of the present invention, it should be understood that the terms "one end", "the other end", "middle", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0093] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0094] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0095] like Figure 1-Figure 4 The present invention discloses a self-starting auxiliary debugging device, which includes a control box. The control box is a rectangular frame and adopts a 4U chassis finished product, which is convenient to use. Specifically, alloy profiles and aluminum alloy sheet metal are used as the basic structure, so that the chassis not only has sufficient strength and stability, but also is relatively light in weight, which is convenient for transportation and installation.

[0096] The control box is provided with a wiring port, which includes a normally open contact, a normally closed contact, a closing pulse input contact, an opening pulse input contact, a closing pulse output contact and an opening pulse output contact.

[0097] Preferably, six normally open contacts are provided and six normally closed contacts are provided, corresponding to the opening and closing coils. The normally open position preset state represents the closing state, and the normally closed position preset state represents the opening state, which is used to connect the auxiliary equipment circuit.

[0098] There are six closing pulse input contacts, six opening pulse input contacts, six closing pulse output contacts, and six opening pulse output contacts, corresponding to the A1 phase, B1 phase, C1 phase, A2 phase, B2 phase, and C2 phase lines.

[0099] Specifically, the closing pulse input contacts correspond to two groups of three-phase closing pulse input contacts of phase A, phase B and phase C; the opening pulse input contacts correspond to two groups of three-phase opening pulse input contacts of phase A, phase B and phase C.

[0100] The control box is provided with a power plug and a power switch for connecting an external power source. No power source is provided inside the device, thereby reducing the weight of the device of the present invention.

[0101] Preferably, a 485 communication interface can be provided on the side of the control box so that the device of the present invention can be connected to a host computer.

[0102] The control box is provided with a human-machine interaction interface, and a power module, a single-chip microcomputer control unit and a relay unit are arranged between the human-machine interaction interface and the control box.

[0103] The power module performs voltage stabilization operation on the input power supply;

[0104] The relay unit corresponds to the on-site relay, connects to the on-site relay, collects relevant information of the on-site relay, and sends instructions sent by the single-chip control unit to the on-site relay;

[0105] The power module is connected to the power plug. After the power plug is powered on, the power supply is first stabilized for use by the single-chip control unit and the relay unit.

[0106] The single-chip microcomputer control unit processes and judges the input signal according to preset algorithms and conditions, and outputs an action signal to activate the corresponding relay in the relay unit based on the logical judgment.

[0107] In this embodiment, the data transmission relationship between the human-machine interaction interface, the power module, the single-chip control unit and the relay unit is:

[0108] 1. The power plug inputs power to the power module, and the power module stabilizes the input power to 5V and 3.3V. The stabilized 5V power is used for the relay unit, and the stabilized 3.3V voltage is used for the microcontroller control unit.

[0109] 2. The 5V power supply stabilized by the power module is used by the relay unit to provide power for the relay unit.

[0110] 3. The 3.3V power supply stabilized by the power module is used by the microcontroller control unit to provide power for the microcontroller control unit.

[0111] 4. The single-chip microcomputer control unit collects the action behavior of the standby automatic transfer device and performs logical operations. According to the logical judgment, it outputs the action signal to drive the corresponding relay unit, so that the corresponding relay in the relay unit can be actuated.

[0112] 5. Lead the relay node in the relay unit to the human-machine interaction interface, and use the human-machine interaction interface to transition to the standby automatic switching device.

[0113] 6. Feedback the position of the circuit breaker and the node after manual closing to the backup automatic switching device.

[0114] 7. Input the action tripping signal of the standby automatic switching device and the function key input command on the human-machine interaction interface into the single-chip microcomputer control unit.

[0115] 8. The single-chip microcomputer control unit outputs the position signal of the circuit breaker and the operation signal of the device to the indicator light of the human-machine interaction interface, and displays the information through the indicator light for personnel's reference.

[0116] 9. The tripping signal of the standby automatic switching device is output to the human-machine interaction interface and transitioned through the human-machine interaction interface.

[0117] like Figure 4 As shown, the human-computer interaction interface is provided with at least one level display interface, and the level display interface at least includes an input status indication module, an output status indication module, a closing and opening coil simulation module, a closing time setting module, a tripping time setting module and a manual operation button module.

[0118] The input status indication module and the output status indication module specifically include indicator lights for the corresponding phases of phase A, phase B and phase C, as well as the three-in-one, which are displayed for personnel's reference.

[0119] Preferably, the input status indicator module includes an A-phase input indicator light, a B-phase input indicator light, a C-phase input indicator light, a three-close input indicator light, and a three-trip input indicator light. When the closing coil has a pulse input, the indicator light corresponding to the closing point will flash once, and when the opening coil has a pulse input, the indicator light corresponding to the trip point will flash once.

[0120] The A phase input indicator lights include the A1 close input indicator light, the A2 close input indicator light, the A1 jump input indicator light and the A2 jump input indicator light;

[0121] The B phase input indicator light includes a B1 close input indicator light, a B2 close input indicator light, a B1 jump input indicator light, and a B2 jump input indicator light;

[0122] The C phase input indicator light includes the C1 close input indicator light, the C2 close input indicator light, the C1 jump input indicator light and the C2 jump input indicator light;

[0123] The three-in-one indicator light includes a first three-in-one indicator light and a second three-in-one indicator light;

[0124] The three-beat indicator light includes a first three-beat indicator light and a second three-beat indicator light.

[0125] The output status display module includes the output indicator light for phase A, phase B and phase C. When the device is in the closed position, the indicator light at the corresponding position will be always on.

[0126] The A phase output indicator lights include the A1 close output indicator light, the A2 close output indicator light, the A1 trip output indicator light and the A2 trip output indicator light;

[0127] The B phase output indicator light includes a B1 close output indicator light, a B2 close output indicator light, a B1 trip output indicator light, and a B2 trip output indicator light;

[0128] The C phase output indicator lights include the C1 closed output indicator light, the C2 closed output indicator light, the C1 tripped output indicator light and the C2 tripped output indicator light.

[0129] Two groups of corresponding indicator lights for phase A, phase B and phase C are set, corresponding to six groups of switch pulse input contacts and opening pulse input contacts, and one more circuit breaker is simulated for verification to improve the efficiency of standby automatic switching verification.

[0130] The closing and opening coil simulation module sets the multi-level closing and opening coil resistance value, which is used to adjust the closing and opening coil resistance value in multiple levels.

[0131] Preferably, the closing and opening coil simulation module includes the resistance value of the opening coil module and the resistance value of the closing coil module, and the resistance values ​​of the opening coil and the closing coil are set separately to ensure the accuracy of the corresponding resistance values ​​of the closing and opening coils.

[0132] The resistance values ​​of the opening coil module and the closing coil module are set with 44Ω button, 110Ω button, 220Ω button, 440Ω button, 880Ω button and ∞ button, and multi-level opening and closing coil resistance values ​​can be set and adjusted in multiple levels.

[0133] When selecting the opening and closing coil resistance, ∞Ω, 880Ω, 440Ω, 220Ω, 110Ω, 44Ω. When the tripping and closing pulse is 220V, the corresponding opening and closing currents are 0A, 0.25A, 0.5A, 1A, 2A, and 5A respectively; when the tripping and closing pulse is 110V, the corresponding opening and closing currents are 0A, 0.125A, 0.25A, 0.5A, 1A, and 2.5A respectively.

[0134] The closing coil resistance is internally connected to the corresponding position through the closing position contact of the corresponding phase. Therefore, the DC pulse circuit is cut off by the closing position contact of the device itself, and there will be no burning damage caused by cutting off the DC pulse circuit by the control contact of the external device (such as the protection output contact, etc.).

[0135] The closing time setting module and the tripping time setting module allow the closing and opening exit times to be selected in multiple time periods.

[0136] Preferably, the closing time setting module comprises an A-phase closing setting button, a B-phase closing setting button and a C-phase closing setting button.

[0137] The trip time setting module includes an A-phase trip setting button, a B-phase trip setting button and a C-phase trip setting button.

[0138] The A phase closing setting button includes an A1 closing setting button and an A2 closing setting button, the B phase closing setting button includes a B1 closing setting button and a B2 closing setting button, and the C phase closing setting button includes a C1 closing setting button and a C2 closing setting button.

[0139] The closing time of phase A, phase B and phase C can be set separately. In this embodiment, the setting range is 10mS~1000mS, that is, when the closing coil has a pulse input, the output node will act after the delay setting value, the normally open will become normally closed, the normally closed will become normally open, and the closing pulse output will act once after the delay setting value.

[0140] The A-phase trip setting button includes an A1 trip setting button and an A2 trip setting button, the B-phase trip setting button includes a B1 trip setting button and a B2 trip setting button, and the C-phase trip setting button includes a C1 trip setting button and a C2 trip setting button.

[0141] The three-phase opening time of phase A, phase B and phase C can be set separately. In this embodiment, the setting range is 10mS~1000mS, that is, when there is a pulse input to the opening coil, the output node will act after the delay setting value, the normally open will become normally open, the normally closed will become normally closed, and the opening pulse output will act once after the delay setting value.

[0142] The manual operation button module is used to realize the manual opening and closing functions.

[0143] Specifically, it includes the Close A1 button, the Close B1 button, the Close C1 button, the All Close 1 button, the Jump A1 button, the Jump B1 button, the Jump C1 button, the All Jump 1 button, the first fault simulation button, the Close A2 button, the Close B2 button, the Close C2 button, the All Close 2 button, the Jump A2 button, the Jump B2 button, the Jump C2 button, the All Jump 2 button and the second fault simulation button.

[0144] The manual operation button is also the manual tripping and closing button. Press the corresponding button, press the closing time setting module and the tripping time setting module, and the output node of the position will act after the delay setting value, the normally open will become normally closed, the normally closed will become normally open, and the closing pulse output and the opening pulse output will act once for the corresponding phase after the delay setting value. When the full closing and full tripping buttons are pressed, the three-phase output nodes will act after the delay setting value, and the closing pulse output and the opening pulse output will act once for the three phases after the delay setting value.

[0145] The device of the present invention can be used in combination with a relay protection measuring instrument, or can be used independently; if no other contacts need to be controlled by a circuit breaker, the tripping and closing output of the device of the present invention can be omitted, and the tripping and closing indicator light can be observed.

[0146] When used specifically:

[0147] 1. Closing coil

[0148] The three-phase closing pulse input contacts of phase A, phase B and phase C, when there is a pulse input in one phase (such as +KM is connected to this end after the tripping contact of the protection device is actuated), the corresponding closing input indicator light of the input status indication module on the human-machine interaction interface with pulse input will flash once.

[0149] The normally open contact of the corresponding phase is closed, the normally closed node is disconnected, and the output indicator light of the corresponding phase on the human-machine interaction interface lights up.

[0150] When the pulse input is connected to the three-in-one state, the three-in-one input indicator light on the human-machine interface will flash once.

[0151] The normally open contacts of phase A, phase B and phase C are all closed, the normally closed contacts of phase C are all disconnected, and the phase A output indicator light, phase B output indicator light and phase C output indicator light on the human-machine interaction interface are all on.

[0152] 2. Opening coil

[0153] A phase, B phase and C phase three-phase trip pulse input contacts, when a phase has pulse input (such as +KM is connected to this end after the trip contact of the protection device is actuated), the corresponding trip input indicator light of the input status indication module on the human-machine interaction interface with pulse input will flash once.

[0154] The normally open contact of the corresponding phase is disconnected, the normally closed contact is closed, and the trip output indicator light of the corresponding phase on the human-machine interaction interface lights up.

[0155] When the pulse input is connected to three points, the three-jump input indicator light on the human-machine interaction interface will flash once.

[0156] The normally open contacts of phase A, phase B and phase C are all disconnected, the normally closed contacts of phase A are all closed, and the phase A jump output indicator, phase B jump output indicator and phase C jump output indicator on the human-machine interaction interface are all on.

[0157] The black terminal is inserted into the common end of the trip pulse input, which is generally connected to -KM. (When the closing coil A and the opening coil A input negative voltage, the device closes)

[0158] Preferably, the primary display interface is provided with Chinese character labels corresponding to the input status indication module, the output status display module, the closing and opening coil simulation module, the closing time setting module, the tripping time setting module and the manual operation button module.

[0159] The functions of each button and indicator light on the primary display interface are intuitively displayed to assist staff in making judgments. This eliminates the need for staff to remember or consult the instruction manual, making the use process simple and easy to learn.

[0160] The eight vertices of the control box are equipped with anti-collision pads to prevent bumps during transportation or use, which may cause unstable internal line connections.

[0161] The human-machine interaction interface adopts a 10-inch color screen without any mechanical conversion switches and buttons, thereby increasing the service life of the device of the present invention.

[0162] The control box is provided with two connecting blocks, the connecting blocks are provided with rotating shafts, and the rotating shafts are connected with handles. The staff can directly move the device through the handles.

[0163] Preferably, the outside of the handle may be provided with protrusions or anti-slip pads that fit the human body, so as to increase the comfort of the staff during use.

[0164] A method for using a standby automatic input auxiliary debugging device comprises the following steps:

[0165] S1: Turn on the power switch;

[0166] S2: Set the resistance value of the opening coil module and the closing coil module to ∞Ω, 880Ω, 440Ω, 220Ω, 110Ω, and 44Ω. Different resistances will result in different opening currents.

[0167] S3: Click the closing time setting module and the tripping time setting module to set the closing time and tripping time (10-1000ms). Specifically, set the three phases A, B and C separately;

[0168] S4: Connect the input signal from the relay protection test device. For split-phase operation, only the tripping and closing circuits of phases A, B, and C are connected. For three-phase primary operation, three-tripping and three-closing circuits or split-phase tripping and closing circuits can be connected.

[0169] S5: The output signal of the device of the present invention is connected to the relay protection test device.

[0170] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

[0171] Many other changes and modifications may be made without departing from the concept and scope of the present invention.It should be understood that the present invention is not limited to the specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A self-powered auxiliary debugging device, Including control box, It is characterized in that The control box is a rectangular frame. The control box is provided with a wiring port. The wiring port includes a normally open contact, a normally closed contact, a closing pulse input contact, an opening pulse input contact, a closing pulse output contact, and an opening pulse output contact. The control box is provided with a power plug and a power switch. The control box is provided with a human-machine interaction interface. A power module, a single-chip control unit and a relay unit are arranged between the human-machine interaction interface and the control box. The power module performs voltage stabilization operation on the input power supply. The relay unit corresponds to a field relay, The power module is connected to the power plug. The single chip control unit outputs an action signal to actuate the corresponding relay in the relay unit according to the logic judgment. The human-computer interaction interface is provided with at least one level display interface, The primary display interface at least includes an input status indication module, an output status indication module, a closing and opening coil simulation module, a closing time setting module, a tripping time setting module and a manual operation button module.

2. A standby automatic switching auxiliary debugging device as claimed in claim 1, It is characterized in that The input status indicator module includes an A-phase input indicator light, a B-phase input indicator light, a C-phase input indicator light, a three-in-one input indicator light, and a three-trip input indicator light. The output status display module includes an A-phase output indicator light, a B-phase output indicator light, and a C-phase output indicator light. The closing and opening coil simulation module includes the resistance value of the opening coil module and the resistance value of the closing coil module. The closing time setting module includes a phase A closing setting button, a phase B closing setting button and a phase C closing setting button. The trip time setting module includes an A-phase trip setting button, a B-phase trip setting button and a C-phase trip setting button.

3. A standby automatic switching auxiliary debugging device as claimed in claim 2, It is characterized in that The A phase input indicator light includes an A1 close input indicator light, an A2 close input indicator light, an A1 jump input indicator light, and an A2 jump input indicator light. The B phase input indicator light includes a B1 close input indicator light, a B2 close input indicator light, a B1 jump input indicator light and a B2 jump input indicator light. The C phase input indicator light includes a C1 closed input indicator light, a C2 closed input indicator light, a C1 tripped input indicator light, and a C2 tripped input indicator light; The three-in-one indicator light comprises a first three-in-one indicator light and a second three-in-one indicator light; The three-beat indicator light includes a first three-beat indicator light and a second three-beat indicator light. The A phase output indicator light includes an A1 close output indicator light, an A2 close output indicator light, an A1 trip output indicator light, and an A2 trip output indicator light. The B phase output indicator light includes a B1 close output indicator light, a B2 close output indicator light, a B1 trip output indicator light and a B2 trip output indicator light. The C phase output indicator light includes a C1 close output indicator light, a C2 close output indicator light, a C1 jump output indicator light and a C2 jump output indicator light; The resistance values ​​of the opening coil module and the closing coil module are both provided with a 44Ω button, a 110Ω button, a 220Ω button, a 440Ω button, an 880Ω button and an ∞ button; The A-phase closing setting button includes an A1 closing setting button and an A2 closing setting button. The B-phase closing setting button includes a B1 closing setting button and a B2 closing setting button. The C-phase closing setting button includes a C1 closing setting button and a C2 closing setting button; The A-phase trip setting button includes an A1 trip setting button and an A2 trip setting button. The B-phase trip setting button includes a B1 trip setting button and a B2 trip setting button. The C-phase trip setting button includes a C1 trip setting button and a C2 trip setting button.

4. A standby automatic switching auxiliary debugging device as claimed in claim 1, It is characterized in that The normally open contacts are provided with six paths. The normally closed contacts are provided with six paths. The closing pulse input contacts are provided with six circuits. The switch-off pulse input contacts are provided with six circuits. The closing pulse output contacts are provided with six circuits. The switch-off pulse output contacts are provided with six paths.

5. A standby automatic switching auxiliary debugging device as claimed in claim 1, It is characterized in that The manual operation button module includes a close A1 button, a close B1 button, a close C1 button, a full close 1 button, a jump A1 button, a jump B1 button, a jump C1 button, a full jump 1 button, a first fault simulation button, a close A2 button, a close B2 button, a close C2 button, a full close 2 button, a jump A2 button, a jump B2 button, a jump C2 button, a full jump 2 button and a second fault simulation button.

6. A standby automatic switching auxiliary debugging device as claimed in claim 1, It is characterized in that The primary display interface is provided with Chinese character labels corresponding to the input status indication module, the output status display module, the closing and opening coil simulation module, the closing time setting module, the tripping time setting module and the manual operation button module.

7. A standby automatic switching auxiliary debugging device as claimed in claim 1, It is characterized in that The eight vertices of the control box are all provided with anti-collision pads.

8. A standby automatic switching auxiliary debugging device as claimed in claim 1, It is characterized in that The human-computer interaction interface adopts a 10-inch color screen.

9. A standby automatic switching auxiliary debugging device as claimed in claim 1, It is characterized in that The control box is provided with two connection blocks, The connecting block is provided with a rotating shaft, The rotating shaft is connected with a handle.

10. A method for using a standby automatic switching auxiliary debugging device, characterized in that: The auxiliary debugging device for automatic switching on of any one of claims 1 to 9 is used, comprising the following steps: S1: Turn on the power switch; S2: Set the resistance value of the opening coil module and the resistance value of the closing coil module; S3: Click the closing time setting module and the tripping time setting module to set the closing time and the tripping time; S4: Access the input signal from the relay protection test device; S5: The output signal is connected to the relay protection test device.

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