Integrated test device for high-voltage circuit breaker

Abstract

A high-voltage circuit breaker integrated test device comprises a bottom plate, a test plate and a direct-current stabilized power supply are arranged on the bottom plate, a plurality of test branches are arranged on the test plate, each test branch comprises a first binding post, a switch and a second binding post which are sequentially connected in series, the first binding post is used for being connected to a circuit breaker control secondary outgoing line, and the second binding post is used for being connected to a circuit breaker control secondary outgoing line. The second binding post is used for being connected to a mechanical characteristic tester. The technical problem to be solved by the utility model is to provide the integrated test device for the high-voltage circuit breaker, and the operation process of the circuit breaker test is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker detection, in particular to an integrated test device for a high-voltage circuit breaker. Background Art

[0002] The current mechanical characteristic test of circuit breakers requires leading out the secondary control line from the control cabinet and connecting it to a special test instrument (mechanical characteristic tester). The circuit breaker has two opening coils to control the opening of the circuit breaker and one closing coil to control the closing. During the test, it is necessary to use the mechanical characteristic tester to give signals to the opening coil and closing coil to make the circuit breaker operate and complete the opening and closing. When controlled by opening coil 1, the lead wire of opening coil 2 is suspended; when controlled by opening coil 2, the lead wire of opening coil 1 is suspended, and the two opening coils are backup for each other. At the same time, a 220V DC power supply is required to power the operating mechanism of the circuit breaker. After the opening and closing of the circuit breaker are completed, it is necessary to change the wires on the control cabinet, lead out the secondary control lines of the grounding switch and the isolating switch, and complete the opening and closing tests of each switch through the mechanical characteristic tester.

[0003] The above operation has the following defects: 1. There are many control wires that need to be suspended. If the lead wires accidentally touch the ground, it will cause signal trigger errors and problems in the test; 2. The wiring needs to be replaced back and forth, and the test workload is large; 3. There are many lead wires, and errors may occur during wiring replacement or connection due to human errors, resulting in test failure. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide an integrated test device for a high-voltage circuit breaker, which simplifies the operation flow of the circuit breaker test.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a high-voltage circuit breaker integrated test device, including a base plate, a test board and a DC regulated power supply are arranged on the base plate, and a plurality of test branches are arranged on the test board, wherein the test branch comprises a first terminal, a switch and a second terminal connected in series in sequence, the first terminal is used to connect to the secondary lead-out line of the circuit breaker control, and the second terminal is used to connect to a mechanical property tester.

[0006] Preferably, a box body is provided on the bottom plate, the test board cover is provided on the box body, and limiting support columns are provided at the four corners of the box body, and the test board is fixed to the limiting support columns by bolts.

[0007] Preferably, handles are provided around the top and bottom surfaces of the test board.

[0008] Preferably, an auxiliary support column is provided in the middle of the box.

[0009] Preferably, the bottom of the DC regulated power supply is provided with a supporting foot, and the bottom plate is provided with a placement groove matched with the supporting foot.

[0010] Preferably, it also includes a pressure strip for fixing the DC voltage-stabilized power supply, and the pressure strip is fixedly connected to the base plate by bolts.

[0011] Preferably, a pulley is provided on one side of the bottom of the base plate, and a column is provided on the other side.

[0012] Preferably, a handle is also provided on one side of the bottom plate where the column is provided.

[0013] The utility model provides a high-voltage circuit breaker integrated test device, which has the following beneficial effects:

[0014] 1. All secondary lines that need to be operated in the control cabinet are led out to the wiring panel of the device. The wiring method is optimized to eliminate the uncertainty of the secondary line hanging in the air and avoid false triggering of the secondary line signal;

[0015] 2. Reduce the number of people operating the control cabinet and improve test efficiency;

[0016] 3. The wiring panel and 220V adjustable DC power supply are concentrated together to improve the standardization of test wiring, save the floor space of the test instrument, and improve the portability of the test instrument operation and transportation;

[0017] 4. The clear arrangement of the lead-out wiring holes on the wiring panel makes the test wiring clearer and reduces the risk of miswiring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the utility model when not in use. DETAILED DESCRIPTION

[0022] like Figure 1-2 As shown, a high-voltage circuit breaker integrated test device includes a base plate 1, on which a test board 2 and a DC regulated power supply 3 are arranged, and a plurality of test branches are arranged on the test board 2, wherein the test branches include a first terminal 4, a switch 5 and a second terminal 6 connected in series in sequence, the first terminal 4 is used to connect to the secondary lead-out line of the circuit breaker control, and the second terminal 6 is used to connect to a mechanical property tester.

[0023] Preferably, a box body 7 is provided on the bottom plate 1, and the test board 2 is covered on the box body 7. Position-limiting support columns 8 are provided at four corners of the box body 7, and the test board 2 is fixed to the position-limiting support columns 8 by bolts.

[0024] Preferably, handles 9 are provided around the top and bottom surfaces of the test board 2. Handles 9 are provided on both sides of the test board to facilitate the use of the test board 2 on both sides. Figure 3 As shown, the test board 2 can be turned over and then covered on the box 7, and the box 7 stores the connecting wires.

[0025] Preferably, an auxiliary support column 10 is provided in the middle of the box 7. The auxiliary support column supports the middle of the test board 2 and avoids the terminal and the switch.

[0026] Preferably, a support foot 11 is provided at the bottom of the DC regulated power supply 3 , and a placement groove 12 matching with the support foot 11 is provided on the bottom plate 1 .

[0027] Preferably, it also includes a pressure strip 13 for fixing the DC regulated power supply 3, and the pressure strip 13 is fixedly connected to the base plate 1 by bolts.

[0028] Preferably, a pulley 14 is provided on one side of the bottom of the base plate 1, and a column 15 is provided on the other side.

[0029] Preferably, a handle 16 is also provided on one side of the bottom plate 1 where the column 15 is provided, so as to facilitate the movement of the device.

[0030] When in use, the secondary coils for controlling the opening and closing of the circuit breaker are led out from the control cabinet with wires and connected to the first terminal 4 respectively. The led-out secondary coils include one closing control coil and two opening control coils. The first terminal 4 sequentially connects the closing coil with the opening coil 1 and the opening coil 2 from left to right. Then, the secondary coils for controlling the isolation knife switch and the grounding knife switch are led out from the control cabinet with wires and connected to the first terminal 4 in sequence. At the same time, the incoming line of the DC power supply of the circuit breaker operating mechanism is connected to the first terminal 4 with wires. After the labels are affixed to the terminals, the operation is completed. The wiring of the first terminal 4 is completed; two wires of the opening and closing control signals are led out from the mechanical characteristics tester and connected to the corresponding side of the second terminal 6, and connected to the second terminal 6 through wires from the regulated DC power supply 3. The connection position of the power line on the second terminal 6 corresponds to the incoming line of the DC power supply of the circuit breaker operating mechanism on the first terminal 4, and the wiring of the second terminal 6 is completed; before starting the test, close the switch 5 to make the circuit conductive, and open the switch 5 after the test is completed; change the signal wire of the mechanical characteristics tester on the second terminal 6 to complete the circuit breaker mechanical characteristics test.

[0031] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A high voltage circuit breaker integrated test device, characterized in that: The invention comprises a base plate (1), a test board (2) and a DC regulated power supply (3) are arranged on the base plate (1), a plurality of test branches are arranged on the test board (2), the test branches comprise a first terminal (4), a switch (5) and a second terminal (6) which are connected in series in sequence, the first terminal (4) is used to connect to a secondary lead-out line of a circuit breaker control, and the second terminal (6) is used to connect to a mechanical property tester.

2. A high voltage circuit breaker integrated test device according to claim 1, characterized in that: A box body (7) is provided on the bottom plate (1), the test plate (2) is covered on the box body (7), and position-limiting support columns (8) are provided at four corners inside the box body (7), and the test plate (2) is fixed to the position-limiting support columns (8) by bolts.

3. A high voltage circuit breaker integrated test device according to claim 2, characterized in that: Handles (9) are provided around the top and bottom surfaces of the test board (2).

4. A high voltage circuit breaker integrated test device according to claim 2 or 3, characterized in that: An auxiliary support column (10) is provided in the middle of the box body (7).

5. The high voltage circuit breaker integrated test device according to claim 1, characterized in that: The bottom of the DC regulated power supply (3) is provided with a support foot (11), and the bottom plate (1) is provided with a placement groove (12) that matches the support foot (11).

6. A high voltage circuit breaker integrated test device according to claim 5, characterized in that: It also includes a pressure strip (13) for fixing the DC voltage-stabilized power supply (3), and the pressure strip (13) is fixedly connected to the bottom plate (1) by means of bolts.

7. The high voltage circuit breaker integrated test device according to claim 1, characterized in that: A pulley (14) is provided on one side of the bottom of the base plate (1), and a column (15) is provided on the other side.

8. A high voltage circuit breaker integrated test device according to claim 7, characterized in that: A handle (16) is also provided on one side of the bottom plate (1) where the upright post (15) is provided.

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