CN217007602U - Movable direct current breaker opening and closing characteristic parameter testing device - Google Patents
Movable direct current breaker opening and closing characteristic parameter testing device Download PDFInfo
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- CN217007602U CN217007602U CN202123110526.XU CN202123110526U CN217007602U CN 217007602 U CN217007602 U CN 217007602U CN 202123110526 U CN202123110526 U CN 202123110526U CN 217007602 U CN217007602 U CN 217007602U
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- circuit breaker
- opening
- closing
- test box
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Abstract
The utility model provides a device for testing opening and closing characteristic parameters of a movable direct current breaker, which comprises a control power supply, a connector and a test box, wherein the control power supply is connected with the connector; the control power supply supplies power to the test box, one end of the connector is electrically connected to the circuit breaker to be tested, and the other end of the connector is electrically connected to the test box; the test box comprises a power circuit, a circuit breaker control unit, a switching-on and switching-off control button and a time sampling interface. According to the utility model, an opening and closing command is sent out through an opening and closing control button in the test box, the circuit breaker control unit sends out a control signal to the circuit breaker to be tested through the connector according to the received opening and closing signal, so that the opening and closing process of the circuit breaker is controlled, and the time sampling interface in the test box records the process time of the opening and closing action, so that the integrated test box simplifies the conventional test process of complicated on-site wiring and greatly shortens the test time.
Description
Technical Field
The utility model relates to the technical field of power equipment testing devices, in particular to a device for testing opening and closing characteristic parameters of a movable direct-current circuit breaker.
Background
At present, a subway traction system basically mainly uses direct current power supply, wherein a direct current breaker plays an important role in switching on and switching off and protecting a circuit. In order to ensure the working reliability of the direct current circuit breaker, necessary preventive tests need to be carried out on the switch. The traditional switch preventive test needs to be externally connected with a switching-on/off button, a timer, a power supply and the like, the wiring of a test loop is complex, a test plate is heavy, the field carrying is difficult, the wiring needs to be connected once when each preventive test of one switch is carried out, the time is very consuming, the requirement on the skill of a maintainer is high, and the field test is very inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defect of complex wiring in the prior art, test is simply, conveniently and quickly carried out through an integrated test box, and a high-efficiency test device is provided.
In order to achieve the purpose, the utility model is realized according to the following technical scheme:
a movable direct current breaker opening and closing characteristic parameter testing device comprises a control power supply, a connector and a testing box; the control power supply supplies power to the test box, one end of the connector is electrically connected to the circuit breaker to be tested, and the other end of the connector is electrically connected to the test box; the test box comprises a power circuit, a circuit breaker control unit, an opening control button, a closing control button and a time sampling interface, wherein the power circuit is electrically connected to the circuit breaker control unit, the power circuit is electrically connected to a connector to provide a power supply for a circuit breaker to be tested, the circuit breaker control unit is electrically connected to the opening control button and the closing control button, and the time sampling interface is electrically connected to the opening control button and the closing control button.
Preferably, the control power supply is a 110V direct current power supply.
Preferably, the connector is an aircraft plug.
Preferably, the test box further comprises an indicator light, and the circuit breaker control unit is electrically connected to the indicator light.
Preferably, the indicator light comprises a breaker opening indicator light, a breaker closing indicator light and a power indicator light.
Preferably, the time sampling interface is externally connected with an electric stopwatch and a relay protection tester.
Preferably, the test chamber has a length of 300mm, a width of 280mm and a height of 180 mm.
According to the utility model, an opening and closing command is sent out through an opening and closing control button in the test box, the circuit breaker control unit sends out a control signal to the circuit breaker to be tested through the connector according to the received opening and closing signal, so that the opening and closing process of the circuit breaker is controlled, and the time sampling interface in the test box records the process time of the opening and closing action.
Drawings
Fig. 1 is a structural block diagram of a switching-on and switching-off characteristic parameter testing device of a mobile direct current circuit breaker according to the utility model;
fig. 2 is an electrical schematic diagram of the switching characteristic parameter testing device of the mobile direct current circuit breaker according to the utility model;
fig. 3 is a circuit diagram of an indicator light circuit of the switching characteristic parameter testing device of the mobile direct current circuit breaker according to the utility model.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the utility model, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict. In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention, and the described embodiments are merely a subset of the embodiments of the present invention, rather than a complete embodiment. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1, the device for testing opening and closing characteristic parameters of the mobile direct current circuit breaker comprises a control power supply 1, a test box 2 and a connector 3; the control power supply 1 supplies power to the test box 2, one end of the connector 3 is electrically connected to a circuit breaker to be tested, and the other end of the connector is electrically connected to the test box 2; the test box 2 comprises a power supply circuit 21, a circuit breaker control unit 22, a time sampling interface 23, a switching-off control button 24 and a switching-on control button 25, wherein the power supply circuit 21 is electrically connected to the circuit breaker control unit 22, the power supply circuit 21 is electrically connected to the connector 3 and provides power for a circuit breaker to be tested, the circuit breaker control unit 22 is electrically connected to the switching-off control button 24 and the switching-on control button 25, and the time sampling interface 23 is electrically connected to the switching-off control button 24 and the switching-on control button 25.
Specifically, referring to the schematic diagram shown in fig. 2, in use, a tester manually presses the opening control button 24 or the closing control button 25 to issue an opening or closing command and provide a control signal for the circuit breaker control unit 22, and after receiving the opening or closing button signal, the circuit breaker control unit 22 issues a corresponding opening or closing command to the circuit breaker to control the opening or closing process of the circuit breaker. The power circuit 21 is externally connected with a 110V direct current control power supply 1 and provides working power supply for the circuit breaker control unit 22 and the like. The time sampling interface 23 is used for recording the time of the moment when the switching-off or switching-on command is sent, recording the time again after the switching-off or switching-on action is completed, and subtracting the two times to obtain the process time of the switching-off or switching-on action. The time sampling interface 23 can be externally connected with an electric stopwatch, a relay protection tester and other equipment for sampling the test time.
In this embodiment, the connector 3 is an aviation plug, the aviation plug is a dedicated connection joint between the dc circuit breaker opening and closing characteristic parameter testing device and the circuit breaker 4 to be tested, and after the aviation plug is connected, the dc circuit breaker opening and closing characteristic parameter testing device provides an opening and closing control signal, a coil action power supply and the like for the circuit breaker 4 to be tested. The circuit breaker 4 to be tested is electrically connected with the device through the aviation plug, so that the circuit breaker 4 to be tested can obtain a working power supply and a control signal, a tester sends a switching-off or switching-on signal to the circuit breaker control unit 22 through the switching-on and switching-off control buttons 24 and 25, and the circuit breaker control unit 22 transmits the control signal to the circuit breaker to be tested through the aviation plug.
As shown in fig. 3, in this embodiment, an indicator light is further disposed in the testing box 2, and is used for indicating the opening of the circuit breaker, the closing of the circuit breaker, and the power supply.
In this example, the test chamber is a rectangular parallelepiped having a length of 300mm, a width of 280mm and a height of 180mm, wherein the lid has a height of 50 mm.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (7)
1. A movable direct current breaker opening and closing characteristic parameter testing device is characterized by comprising a control power supply, a connector and a testing box; the control power supply supplies power to the test box, one end of the connector is electrically connected to the circuit breaker to be tested, and the other end of the connector is electrically connected to the test box; the test box comprises a power circuit, a circuit breaker control unit, an opening control button, a closing control button and a time sampling interface, wherein the power circuit is electrically connected to the connector and provides a power supply for a circuit breaker to be tested, the power circuit is electrically connected to the circuit breaker control unit, the circuit breaker control unit is electrically connected to the opening control button and the closing control button, and the time sampling interface is electrically connected to the opening control button and the closing control button.
2. The device for testing the opening and closing characteristic parameters of the mobile direct-current circuit breaker according to claim 1, wherein the control power supply is a 110V direct-current power supply.
3. The device for testing opening and closing characteristic parameters of the mobile direct-current circuit breaker according to claim 1, wherein the connector is an aviation plug.
4. The device for testing the opening and closing characteristic parameters of the mobile direct current circuit breaker according to claim 1, wherein an indicator lamp is further arranged in the test box, and the circuit breaker control unit is electrically connected to the indicator lamp.
5. The device for testing the opening and closing characteristic parameters of the mobile direct-current circuit breaker according to claim 4, wherein the indicator lamps comprise a circuit breaker opening indicator lamp, a circuit breaker closing indicator lamp and a power indicator lamp.
6. The device for testing the opening and closing characteristic parameters of the mobile direct-current circuit breaker according to claim 1, wherein the time sampling interface is externally connected with an electric stopwatch and a relay protection tester.
7. The device for testing the opening and closing characteristic parameters of the mobile direct current circuit breaker according to any one of claims 1 to 6, wherein the length of the test box is 300mm, the width of the test box is 280mm, and the height of the test box is 180 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123110526.XU CN217007602U (en) | 2021-12-10 | 2021-12-10 | Movable direct current breaker opening and closing characteristic parameter testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123110526.XU CN217007602U (en) | 2021-12-10 | 2021-12-10 | Movable direct current breaker opening and closing characteristic parameter testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217007602U true CN217007602U (en) | 2022-07-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123110526.XU Active CN217007602U (en) | 2021-12-10 | 2021-12-10 | Movable direct current breaker opening and closing characteristic parameter testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217007602U (en) |
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2021
- 2021-12-10 CN CN202123110526.XU patent/CN217007602U/en active Active
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