Calibration equipment for relay protection device

Abstract

The utility model provides verification equipment for a relay protection device. The verification equipment comprises an equipment box body, and a switch module, a plurality of wiring terminals, a relay protection device, a circuit breaker control module and a relay which are arranged in the equipment box body, wherein the switch module and the plurality of wiring terminals are respectively connected with the relay protection device; the relay protection device is connected with the circuit breaker control module so as to input protection information to the circuit breaker control module; the circuit breaker control module is connected with the relay so as to drive the relay to simulate the circuit breaker to work; and the relay is connected with the relay protection device so as to transmit working information of the simulated circuit breaker to the relay protection device. According to the utility model, the fault processing capability and efficiency of maintenance personnel can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of relay protection device verification equipment, and specifically to a relay protection device verification equipment. Background Technology

[0002] Before replacing faulty DC traction relay protection devices in urban rail transit, the spare parts of the DC traction relay protection devices need to be functionally verified. Performing verification at the fault site would significantly impact fault repair efficiency. Furthermore, during the localization of DC traction relay protection devices, directly modifying and testing on-site would directly affect the safety and reliability of traction power supply. Utility Model Content

[0003] The purpose of this invention is to provide a relay protection device testing equipment that can overcome the shortcomings and deficiencies of the existing technology.

[0004] One embodiment of this utility model provides a relay protection device verification device, including: a device housing, and a switch module, several wiring terminals, a relay protection device, a circuit breaker control module and a relay disposed in the device housing;

[0005] The switch module and the plurality of terminals are respectively connected to the relay protection device;

[0006] The relay protection device is connected to the circuit breaker control module to input protection information to the circuit breaker control module;

[0007] The circuit breaker control module is connected to the relay to drive the relay to mimic the operation of the circuit breaker;

[0008] The relay is connected to the relay protection device to transmit simulated circuit breaker operation information to the relay protection device.

[0009] Furthermore, it also includes a display module disposed in the equipment enclosure, and the relay is connected to the display module to display the status information of the circuit breaker operation simulated by the relay through the display module.

[0010] Furthermore, the display module includes several indicator lights, each of which is used to display various status information of the circuit breaker operation simulated by the relay.

[0011] Furthermore, the switching module includes a power circuit switch and a transfer switch; the power circuit switch is connected to the relay protection device to supply power to the relay protection device; the transfer switch is connected to the relay protection device to switch the protection information of the relay protection device.

[0012] Furthermore, the power circuit switch is also connected to the relay to supply power to the relay.

[0013] Furthermore, the power circuit switch is also connected to the circuit breaker control module to supply power to the circuit breaker control module.

[0014] Furthermore, the equipment enclosure is provided with an insulating base plate. The switch module, several terminals, relay protection device, circuit breaker control module and relay are arranged on the first side of the insulating base plate. The second side of the insulating base plate and the inner wall of the equipment enclosure form a wiring space to accommodate the connection wires between the switch module, several terminals, relay protection device, circuit breaker control module and relay.

[0015] Furthermore, the equipment enclosure is provided with a wiring channel, which is connected to the wiring space. The connecting wires are connected to the switch module, several terminal blocks, the circuit breaker control module and the relay via the wiring channel.

[0016] Furthermore, the wiring channel is provided with multiple wiring openings, and the connecting wires are connected to the switch module, several terminals, the circuit breaker control module and the relay respectively through the multiple wiring openings of the wiring channel.

[0017] Furthermore, the outer surface of the equipment housing is provided with an insulated carrying handle.

[0018] Compared to existing technologies, the relay protection device verification equipment of this utility model can form a DC traction relay protection device functional verification circuit within the equipment enclosure based on the connection relationship between the switch module 100, several wiring terminals 200, relay protection device 300, circuit breaker control module 400, and relay 500 installed in the equipment enclosure. This allows users to safely and conveniently carry and use the relay protection device verification equipment, realizing fault simulation, relay protection verification, fault waveform analysis, and software program upgrades for DC traction relay protection devices. It facilitates maintenance personnel to perform functional verification on the relay protection device 300 to be replaced before replacement. After constructing the relay protection device verification equipment, it is possible to achieve the domestic offline modification of U-MLE-Ts type DC traction relay protection devices without changing the original wiring, avoiding direct modification and testing on the operating equipment, reducing equipment operation risks, and improving the fault handling capabilities and efficiency of maintenance personnel.

[0019] To provide a clearer understanding of this invention, the specific embodiments of the invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the module connection of a relay protection device verification equipment according to an embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram showing the connection of the power circuit switch, changeover switch, and indicator light of the relay protection device calibration equipment according to an embodiment of this utility model.

[0022] Figure 3 This is a circuit diagram of the relay protection device of a relay protection device verification equipment according to an embodiment of the present utility model.

[0023] Figure 4 This is a circuit diagram of the circuit breaker control module of a relay protection device verification equipment according to an embodiment of the present invention.

[0024] Figure 5 This is a circuit diagram of the power circuit switch of a relay protection device calibration equipment according to an embodiment of the present invention.

[0025] 100. Switch module; 200. Several terminal blocks; 300. Relay protection device; 400. Circuit breaker control module; 500. Relay; 600. Display module. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-3 The relay protection device verification equipment of one embodiment of the present utility model includes: an equipment box, and a switch module 100, a plurality of wiring terminals 200, a relay protection device 300, a circuit breaker control module 400 and a relay 500 disposed in the equipment box;

[0028] The switch module 100 and the plurality of terminals 200 are respectively connected to the relay protection device 300;

[0029] The relay protection device 300 is connected to the circuit breaker control module 400 to input protection information to the circuit breaker control module 400;

[0030] The circuit breaker control module 400 is connected to the relay 500 to drive the relay 500 to mimic the operation of the circuit breaker.

[0031] The relay 500 is connected to the relay protection device 300 to transmit simulated circuit breaker operation information to the relay protection device 300.

[0032] like Figure 2As shown, the relay 500 is connected to the relay protection device 300 through the circuit breaker position control unit (referred to as "circuit breaker position" in the figure). The circuit breaker position control unit is used to transmit the connection position information of the circuit breaker as part of the circuit breaker operation information to the relay protection device 300, so as to verify whether the relay protection device 300 can perform fault clearing, abnormal alarm, and power supply continuity under normal conditions.

[0033] In one feasible embodiment, the display module 600 includes a plurality of indicator lights, each of which is used to display various status information of the circuit breaker operation simulated by the relay 500.

[0034] In one feasible embodiment, the switching module 100 includes a power circuit switch and a transfer switch; the power circuit switch is connected to the relay protection device 300 to supply power to the relay protection device 300; the transfer switch is connected to the relay protection device 300 to switch the protection information of the relay protection device 300.

[0035] In one feasible embodiment, the equipment enclosure is provided with an insulating base plate. The switch module 100, a plurality of terminal blocks 200, a relay protection device 300, a circuit breaker control module 400, and a relay 500 are disposed on the first side of the insulating base plate. The second side of the insulating base plate forms a wiring space with the inner wall of the equipment enclosure to accommodate the connection wires between the switch module 100, the plurality of terminal blocks 200, the relay protection device 300, the circuit breaker control module 400, and the relay 500.

[0036] In one feasible embodiment, the equipment enclosure is provided with a wiring channel, which is connected to the wiring space. The connecting wires are connected to the switch module 100, a plurality of terminal blocks 200, the circuit breaker control module 400 and the relay 500 respectively via the wiring channel.

[0037] In one feasible embodiment, the wiring channel is provided with multiple wiring openings, and the connecting wires are connected to the switch module 100, a number of terminal blocks 200, the circuit breaker control module 400 and the relay 500 respectively through the multiple wiring openings of the wiring channel.

[0038] In one feasible embodiment, the outer surface of the device housing is provided with an insulated carrying handle.

[0039] Specifically, the relay protection device 300 in this embodiment is a DC traction relay protection device, and the circuit diagram of the relay protection device 300 is as follows. Figure 3 As shown; the circuit diagram of the circuit breaker control module 400 (CBCM) is as follows. Figure 4 As shown.

[0040] In one feasible embodiment, a display module 600 is also provided in the device enclosure, and the relay 500 is connected to the display module 600 to display the status information of the circuit breaker operation emulated by the relay 500 through the display module 600.

[0041] Among them, the power circuit switch is as follows Figure 5 As shown.

[0042] In one feasible embodiment, the power circuit switch is also connected to the relay 500 to supply power to the relay 500.

[0043] In one feasible embodiment, the power circuit switch is also connected to the circuit breaker control module 400 to supply power to the circuit breaker control module 400.

[0044] Compared to existing technologies, the relay protection device verification equipment of this utility model can form a DC traction relay protection device functional verification circuit within the equipment enclosure based on the connection relationship between the switch module 100, several wiring terminals 200, relay protection device 300, circuit breaker control module 400, and relay 500 installed in the equipment enclosure. This allows users to safely and conveniently carry and use the relay protection device verification equipment, realizing fault simulation, relay protection verification, fault waveform analysis, and software program upgrades for DC traction relay protection devices. It facilitates maintenance personnel to perform functional verification on the relay protection device 300 to be replaced before replacement. After constructing the relay protection device verification equipment, it is possible to achieve the domestic offline modification of U-MLE-Ts type DC traction relay protection devices without changing the original wiring, avoiding direct modification and testing on the operating equipment, reducing equipment operation risks, and improving the fault handling capabilities and efficiency of maintenance personnel.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A relay protection device calibration device, characterized in that, include: The equipment enclosure, and the switch module, several wiring terminals, relay protection device, circuit breaker control module and relay installed in the equipment enclosure; The switch module and the plurality of terminals are respectively connected to the relay protection device; The relay protection device is connected to the circuit breaker control module to input protection information to the circuit breaker control module; The circuit breaker control module is connected to the relay to drive the relay to mimic the operation of the circuit breaker; The relay is connected to the relay protection device to transmit simulated circuit breaker operation information to the relay protection device.

2. The relay protection device verification equipment according to claim 1, characterized in that: It also includes a display module disposed in the equipment enclosure, and the relay is connected to the display module to display the status information of the circuit breaker operation simulated by the relay through the display module.

3. The relay protection device verification equipment according to claim 2, characterized in that: The display module includes several indicator lights, each of which is used to display various status information of the circuit breaker operation simulated by the relay.

4. The relay protection device verification equipment according to claim 1, characterized in that: The switching module includes a power circuit switch and a transfer switch; the power circuit switch is connected to the relay protection device to supply power to the relay protection device; the transfer switch is connected to the relay protection device to switch the protection information of the relay protection device.

5. The relay protection device verification equipment according to claim 4, characterized in that: The power circuit switch is also connected to the relay to supply power to the relay.

6. The relay protection device verification equipment according to claim 4, characterized in that: The power circuit switch is also connected to the circuit breaker control module to supply power to the circuit breaker control module.

7. The relay protection device verification equipment according to claim 1, characterized in that: The equipment enclosure is equipped with an insulating base plate. The switch module, several terminals, relay protection device, circuit breaker control module and relay are arranged on the first side of the insulating base plate. The second side of the insulating base plate and the inner wall of the equipment enclosure form a wiring space to accommodate the connection wires between the switch module, several terminals, relay protection device, circuit breaker control module and relay.

8. The relay protection device verification equipment according to claim 7, characterized in that: The equipment enclosure is provided with a wiring channel, which is connected to the wiring space. The connecting wires are connected to the switch module, several terminal blocks, circuit breaker control module and relay respectively via the wiring channel.

9. The relay protection device verification equipment according to claim 8, characterized in that: The wiring channel has multiple wiring openings, and the connecting wires are connected to the switch module, several terminals, the circuit breaker control module and the relay respectively through the multiple wiring openings of the wiring channel.

10. The relay protection device verification equipment according to claim 1, characterized in that: The outer surface of the equipment housing is provided with an insulated carrying handle.

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