Permanent magnetic mechanism simulation circuit breaker test tool

Abstract

A permanent magnetic mechanism simulation circuit breaker test tool relates to the technical field of electric power. Comprising a box body, opening and closing current input connecting ends C + and C-, remote signaling power supply input connecting ends L + and L-, an opening electromagnet TQ, a closing electromagnet HQ, a current-limiting resistor R, a diode D1, a diode D2, a relay KM1 and a relay KM2, and the opening electromagnet TQ, the closing electromagnet HQ, the current-limiting resistor R, the diode D1, the diode D2, the relay KM1 and the relay KM2 are installed in the box body. The simulation circuit breaker test tool is simple in structure and portable, when FTU terminal debugging is carried out on a complete set of primary and secondary fusion distribution network switch which is put into operation on site, the simulation circuit breaker test tool is directly plugged in an aviation plug, main station side remote control operation can be carried out, switch position signals are normally sent, and great convenience is provided for debugging of the switch which is put into operation on the distribution network site.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power, in particular to a test tooling for a permanent magnet mechanism analog circuit breaker. Background Technique

[0002] For the complete set of permanent magnet circuit breakers installed in the distribution network line, since they have been put into operation and powered on, the circuit breakers are in the closed position. When on-site complete set joint debugging is required for various reasons, the opening and closing operations of the circuit breakers cannot be carried out unless power is cut off, which seriously interferes with the normal power supply to users. Content of the Utility Model

[0003] The purpose of the utility model is to provide a test tooling for a permanent magnet mechanism analog circuit breaker, which can effectively solve the problems in the background technique.

[0004] The technical solution to achieve the above purpose is: a test tooling for a permanent magnet mechanism analog circuit breaker, characterized in that: it includes a box body, closing and opening current input connection terminals C+, C-, remote signal power input connection terminals L+, L-, a tripping electromagnet TQ, a closing electromagnet HQ, a current limiting resistor R, a diode D1, a diode D2, a relay KM1, and a relay KM2. The tripping electromagnet TQ, the closing electromagnet HQ, the current limiting resistor R, the diode D1, the diode D2, the relay KM1, and the relay KM2 are installed in the box body;

[0005] A bipolar microswitch S21 is correspondingly arranged on one side of the closing electromagnet HQ. The push rod of the closing electromagnet HQ is aligned with the bipolar microswitch S21 and controls the action of the bipolar microswitch S21 through the push rod; a bipolar microswitch S31 is correspondingly arranged on one side of the tripping electromagnet TQ. The push rod of the tripping electromagnet TQ is aligned with the bipolar microswitch S31 and controls the action of the bipolar microswitch S31 through the push rod;

[0006] The positive pole of the diode D1 and the negative pole of the diode D2 are connected in parallel and then connected to the closing and opening current input connection terminal C+. The negative pole of the diode D1 is connected in series with one end of the closing electromagnet HQ, and the positive pole of the diode D2 is connected in series with one end of the tripping electromagnet TQ. The other ends of the closing electromagnet HQ and the tripping electromagnet TQ are connected in parallel and then connected to one end of the current limiting resistor R. The other end of the current limiting resistor R is connected to the closing and opening current input connection terminal C-;

[0007] One end of the normally open contact of the bipolar microswitch S21 is connected to the remote signal power input connection terminal L+, and the other end is successively connected in series with the coil of the relay KM1 and the normally closed contact of the bipolar microswitch S31 and then connected to the remote signal power input connection terminal L-. The two ends of the normally open contact of the bipolar microswitch S21 are also connected in parallel with the normally open contact KM1-1 of the relay KM1;

[0008] One end of the normally open contact of the bipolar microswitch S31 is connected to the remote signaling power input connection terminal L+, and the other end is sequentially connected in series with the relay KM2 and the normally closed contact of the bipolar microswitch S21 and then connected to the remote signaling power input connection terminal L-. Both ends of the normally open contact of the bipolar microswitch S31 are also connected in parallel with the normally open contact KM2-1 of the relay KM2 and the signal start switch S1, and the signal start switch S1 is installed on the side wall of the box body;

[0009] One ends of the normally open contacts KM1-2 of the relay KM1 and KM2-2 of the relay KM2 are connected in parallel, and the other ends are respectively used as the opening signal output JX2 and the opening signal output JX3. The parallel connection end of the normally open contacts KM1-2 of the relay KM1 and KM2-2 of the relay KM2 is connected to the opening and closing output signal common terminal JX1.

[0010] Further, on the side wall of the box body, there are provided an opening and closing current input socket as the opening and closing current input connection terminals C+, C-, a remote signaling power input socket as the remote signaling power input connection terminals L+, L-, and a feedback signal output socket and are respectively used as the opening and closing signal output common terminal JX1, the closing signal output JX2, and the opening signal output JX3.

[0011] Further, on the side wall of the box body, there are also installed aviation plugs respectively electrically connected to the opening and closing current input connection terminals C+, C-, the remote signaling power input connection terminals L+, L-, and the signal output sockets JX1, JX2, JX3.

[0012] Further, both ends of the opening electromagnet TQ are connected in parallel with a diode D3, and both ends of the closing electromagnet HQ are connected in parallel with a diode D4.

[0013] When in use, the present utility model is connected to a permanent magnet switch controller, and the permanent magnet switch controller is communicatively connected to the master station. First, the signal start switch S1 is triggered as the starting analog switch position signal trigger, and a ±24V power supply is provided to the permanent magnet switch controller input signal (the permanent magnet switch controller needs an initial position signal). The permanent magnet outlet and the opening and closing position feedback signals are both connected to the permanent magnet switch controller through the aviation plug, or can be led to the permanent magnet switch controller through the wiring socket on the box body.

[0014] When a closing operation is performed, the permanent magnet switch controller drives the closing electromagnet HQ to act, pushing the bipolar microswitch S21, and its normally open auxiliary contact S21 is closed, forming a self-holding signal in the remote signaling circuit, turning on the closing position indicating relay KM1, and the normally open contacts KM1-1 and KM1-2 of the relay KM1 are closed, and the closing position signal is fed back to the acquisition terminal. At the same time, the normally closed auxiliary contact S21 is opened to form an interlock.

[0015] During the opening operation, the permanent magnet switch controller drives the opening electromagnet TQ to act, pushing the double-pole microswitch S31. Its normally open auxiliary contact S31 closes, forming a self-holding signal in the telemetry circuit, turning on the closing position indicating relay KM2. The normally open contacts KM2-1 and KM2-2 of the relay KM2 close, and the closing position signal is fed back to the acquisition terminal. At the same time, the normally closed auxiliary contact S31 disconnects to form an interlock.

[0016] This simulated circuit breaker test tooling is simple and portable. When debugging the FTU terminal on-site for the already put-into-operation complete set of primary and secondary integrated distribution network switches, just plug in the aviation plug, and remote control operation can be carried out on the master station side, and the switch position signal can be normally sent up, which provides great convenience for the debugging of the already put-into-operation switches in the distribution network site. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a rear view of the present utility model;

[0019] Figure 3 is a control schematic diagram of the present utility model;

[0020] Figure 4 is a system schematic diagram of the present utility model in the use state. Detailed Embodiment

[0021] As Figures 1-3 shown, the present utility model includes a box body 1, opening and closing current input connection terminals C+, C-, telemetry power input connection terminals L+, L-, opening electromagnet TQ, closing electromagnet HQ, current limiting resistor R, diode D1, diode D2, relay KM1, and relay KM2. The opening electromagnet TQ, closing electromagnet HQ, current limiting resistor R, diode D1, diode D2, relay KM1, and relay KM2 are installed in the box body 1.

[0022] A double-pole microswitch S21 is correspondingly arranged on one side of the closing electromagnet HQ. The push rod of the closing electromagnet HQ is aligned with the double-pole microswitch S21 and controls the action of the double-pole microswitch S21 through the push rod; a double-pole microswitch S31 is correspondingly arranged on one side of the opening electromagnet TQ. The push rod of the opening electromagnet TQ is aligned with the double-pole microswitch S31 and controls the action of the double-pole microswitch S31 through the push rod.

[0023] The positive electrode of diode D1 and the negative electrode of diode D2 are connected in parallel and then connected to the closing and opening current input connection terminal C+. The negative electrode of diode D1 is connected in series with one end of the closing electromagnet HQ, and the positive electrode of diode D2 is connected in series with one end of the opening electromagnet TQ. The other ends of the closing electromagnet HQ and the opening electromagnet TQ are connected in parallel and then connected to one end of the current-limiting resistor R. The other end of the current-limiting resistor R is connected to the closing and opening current input connection terminal C-. Among them, diodes D1 and D2 are used for unidirectional current flow.

[0024] Two ends of the opening electromagnet TQ are connected in parallel with a diode D3. The positive electrode of diode D3 is connected to the positive electrode of diode D2. Two ends of the closing electromagnet HQ are connected in parallel with a diode D4. The negative electrode of diode D4 is connected to the negative electrode of diode D1. Diodes D3 and D4 are used for freewheeling.

[0025] One end of the normally open contact of the double-pole micro switch S21 is connected to the telemetry signal power input connection terminal L+, and the other end is sequentially connected in series with the coil of the relay KM1 and the normally closed contact of the double-pole micro switch S31 and then connected to the telemetry signal power input connection terminal L-. Two ends of the normally open contact of the double-pole micro switch S21 are also connected in parallel with the normally open contact KM1-1 of the relay KM1.

[0026] One end of the normally open contact of the double-pole micro switch S31 is connected to the telemetry signal power input connection terminal L+, and the other end is sequentially connected in series with the relay KM2 and the normally closed contact of the double-pole micro switch S21 and then connected to the telemetry signal power input connection terminal L-. Two ends of the normally open contact of the double-pole micro switch S31 are also connected in parallel with the normally open contact KM2-1 of the relay KM2 and the signal start switch S1.

[0027] One ends of the normally open contact KM1-2 of the relay KM1 and the normally open contact KM2-2 of the relay KM2 are connected in parallel, and the other ends are respectively used as the opening signal output JX2 and the opening signal output JX3. The connection end of the normally open contact KM1-2 of the relay KM1 and the normally open contact KM2-2 of the relay KM2 is connected to the closing and opening output signal common terminal JX1.

[0028] On the side wall of the box body 1, there are provided closing and opening current input sockets as the closing and opening current input connection terminals C+ and C-, there are provided telemetry signal power input sockets as the telemetry signal power input connection terminals L+ and L-, and there is provided a feedback signal output socket and used as the closing and opening output signal common terminal JX1, the closing signal output JX2, and the opening signal output JX3 respectively.

[0029] As a further description of this embodiment, for the convenience of wiring, a terminal block 2 is also provided inside the box body 1.

[0030] An aviation plug (not shown in the figure) electrically connected to the closing and opening current input connection terminals C+, C-, the telemetry signal power input connection terminals L+, L-, and the signal output sockets JX1, JX2, JX3 is also installed on the side wall of the box body 1.

[0031] As Figure 4 shown, when the utility model is in use, it is respectively connected to the permanent magnet switch controller 3 and the 24V power supply 5 through the aviation plug. The permanent magnet switch controller 3 is communicatively connected to the master station 4. The permanent magnet switch controller 3 includes a controller CPU module 3.1, a power supply module 3.2, a capacitor module 3.3, and a permanent magnet drive module 3.4. The controller CPU module 3.1 is connected to the power supply module 3.2, the power supply module 3.2 is connected to the capacitor module 3.3, and the capacitor module 3.3 is connected to the permanent magnet drive module 3.4. Among them, the controller CPU module 3.1 is simultaneously communicatively connected to the master station 4.

[0032] During the test, first trigger the signal to start the switch S1 as the starting analog switch position signal trigger, and provide the input signal (the permanent magnet switch controller needs an initial position signal) ±24V power supply to the permanent magnet switch controller 3.

[0033] When performing the closing operation, a control signal is sent to the controller CPU module 3.1 through the master station 4. The controller CPU module 3.1 drives the capacitor module 3.3 to send a driving current to the permanent magnet drive module 3.4. The permanent magnet drive module 3.4 drives the closing electromagnet HQ to act, pushing the bipolar microswitch S21, and its normally open auxiliary contact S21 closes, forming a self-holding signal in the telemetry signal circuit, turning on the closing position indicating relay KM1. The normally open contacts KM1-1 and KM1-2 of the relay KM1 close, and the closing position signal is fed back to the acquisition terminal. At the same time, the normally closed auxiliary contact S21 opens to form an interlock.

[0034] When performing the opening operation, a control signal is sent to the controller CPU module 3.1 through the master station 4. The controller CPU module 3.1 drives the capacitor module 3.3 to send a driving current to the permanent magnet drive module 3.4. The permanent magnet drive module 3.4 drives the opening electromagnet TQ to act, pushing the bipolar microswitch S31, and its normally open auxiliary contact S31 closes, forming a self-holding signal in the telemetry signal circuit, turning on the closing position indicating relay KM2. The normally open contacts KM2-1 and KM2-2 of the relay KM2 close, and the closing position signal is fed back to the acquisition terminal. At the same time, the normally closed auxiliary contact S31 opens to form an interlock.

[0035] Based on a deep analysis of the application principle of the permanent magnet mechanism circuit breaker, the utility model designs a simulated circuit breaker test tooling in combination with the actual situation on site. Two groups of electromagnets HQ / TQ are used to simulate the closing and opening coils of the circuit breaker, and the action of the current flowing through the electromagnets is used to reflect the closing and opening outlet output instructions of the permanent magnet drive plate.

Claims

1. A test tooling for a permanent magnet mechanism analog circuit breaker, characterized in that: It includes a box body, closing and opening current input connection terminals C+, C-, telemetry signal power input connection terminals L+, L-, opening electromagnet TQ, closing electromagnet HQ, current-limiting resistor R, diode D1, diode D2, relay KM1, and relay KM2. The opening electromagnet TQ, closing electromagnet HQ, current-limiting resistor R, diode D1, diode D2, relay KM1, and relay KM2 are installed inside the box body; A bipolar microswitch S21 is correspondingly arranged on one side of the closing electromagnet HQ. The push rod of the closing electromagnet HQ is aligned with the bipolar microswitch S21 and controls the operation of the bipolar microswitch S21 through the push rod. A bipolar microswitch S31 is correspondingly arranged on one side of the opening electromagnet TQ. The push rod of the opening electromagnet TQ is aligned with the bipolar microswitch S31 and controls the operation of the bipolar microswitch S31 through the push rod; The positive electrode of diode D1 and the negative electrode of diode D2 are connected in parallel and then connected to the closing and opening current input connection terminal C+. The negative electrode of diode D1 is connected in series with one end of the closing electromagnet HQ, and the positive electrode of diode D2 is connected in series with one end of the opening electromagnet TQ. The other ends of the closing electromagnet HQ and the opening electromagnet TQ are connected in parallel and then connected to one end of the current-limiting resistor R. The other end of the current-limiting resistor R is connected to the closing and opening current input connection terminal C-; One end of the normally open contact of the bipolar microswitch S21 is connected to the telemetry signal power input connection terminal L+, and the other end is sequentially connected in series with the coil of the relay KM1 and the normally closed contact of the bipolar microswitch S31 and then connected to the telemetry signal power input connection terminal L-. The two ends of the normally open contact of the bipolar microswitch S21 are also connected in parallel with the normally open contact KM1-1 of the relay KM1; One end of the normally open contact of the bipolar microswitch S31 is connected to the telemetry signal power input connection terminal L+, and the other end is sequentially connected in series with the relay KM2 and the normally closed contact of the bipolar microswitch S21 and then connected to the telemetry signal power input connection terminal L-. The two ends of the normally open contact of the bipolar microswitch S31 are also connected in parallel with the normally open contact KM2-1 of the relay KM2 and the signal start switch S1. The signal start switch S1 is installed on the side wall of the box body; One ends of the normally open contact KM1-2 of the relay KM1 and the normally open contact KM2-2 of the relay KM2 are connected in parallel, and the other ends are respectively used as the opening signal output JX2 and the opening signal output JX3. The connection end of the normally open contact KM1-2 of the relay KM1 and the normally open contact KM2-2 of the relay KM2 is connected to the closing and opening output signal common terminal JX1.

2. The test tooling for a permanent magnet mechanism analog circuit breaker according to claim 1, wherein: On the side wall of the box body, there are provided closing and opening current input sockets as the closing and opening current input connection terminals C+, C-, there are provided telemetry signal power input sockets as the telemetry signal power input connection terminals L+, L-, and there is provided a feedback signal output socket and is respectively used as the closing and opening output signal common terminal JX1, the closing signal output JX2, and the opening signal output JX3.

3. A permanent magnet mechanism simulation circuit breaker test tooling according to claim 2, characterized in that: On the side wall of the box body, there are also installed aviation plugs respectively electrically connected to the closing and opening current input connection terminals C+, C-, the telemetry signal power input connection terminals L+, L-, and the signal output sockets JX1, JX2, JX3.

4. The test tooling for a permanent magnet mechanism analog circuit breaker according to claim 1, characterized in that: A diode D3 is connected in parallel across both ends of the opening electromagnet TQ, and a diode D4 is connected in parallel across both ends of the closing electromagnet HQ.

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