CN216351095U - Test circuit breaker divide-shut brake simulation dish - Google Patents
Test circuit breaker divide-shut brake simulation dish Download PDFInfo
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- CN216351095U CN216351095U CN202122724680.XU CN202122724680U CN216351095U CN 216351095 U CN216351095 U CN 216351095U CN 202122724680 U CN202122724680 U CN 202122724680U CN 216351095 U CN216351095 U CN 216351095U
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Abstract
The utility model discloses a test circuit breaker opening and closing simulation disc, which comprises a tripping circuit and a closing circuit; the tripping circuit comprises a tripping outlet, a first normally open contact of a switch opening and closing relay and a tripping relay, wherein the first normally open contact of the switch opening and closing relay and the tripping relay are sequentially connected in series; the closing circuit comprises a closing outlet, a first normally closed contact point of the tripping relay, a second normally closed contact point of the switch opening and closing relay and the closing relay, and the closing circuit comprises the closing outlet, the first normally closed contact point of the tripping relay, the second normally closed contact point of the switch opening and closing relay and the closing relay which are sequentially connected in series. The simulation disc provided by the utility model is small and exquisite in manufacture, easy to move, sensitive in action response, capable of saving manpower and material resources, capable of being used in different occasions and environments and capable of providing great help for installation and debugging of power supply system equipment.
Description
Technical Field
The utility model relates to the technical field of circuit breaker testing, in particular to a simulation disc for testing opening and closing of a circuit breaker.
Background
Before a switch cabinet protection measurement and control device newly installed in places such as a substation is put into operation, whether the opening and closing control function of the measurement and control device is normal needs to be checked, normally, the measurement and control device needs to be connected with a controlled switch and then the opening and closing operation is carried out, the connection distance between the measurement and control device and the controlled switch is generally far, and the connection mode is complex; and then the controlled switch is operated in a power transmission state possibly due to power failure and wiring, so that the condition that the measurement and control device is abnormal cannot be accurately judged in time, and if the measurement and control device is in a switching-on/off control failure in normal operation, the normal operation of a power supply system can be influenced.
At present, a microcomputer measurement and control device is adopted to control a switch in important power supply places such as a substation and the like, switching-on and switching-off operations are carried out on the switch, so that reliable operation of the measurement and control device is guaranteed, the measurement and control device possibly cannot be connected with the switch for testing due to conditions on the site, problems cannot be found in time, if the measurement and control device cannot normally control the switch after connection is completed, reasons are searched again, time delay is needed, equipment cannot be put into the switch in time at set time, and hidden dangers are brought to power supply reliability.
SUMMERY OF THE UTILITY MODEL
Before a switch cabinet protection measurement and control device newly installed in places such as a substation is put into operation, whether the opening and closing functions of the measurement and control device are normal or not needs to be checked, and normally, the measurement and control device needs to be connected with a controlled switch and then is subjected to opening and closing operation, the connection distance between the measurement and control device and the controlled switch is generally far, and the connection mode is complex; and then the controlled switch is operated in a power transmission state possibly due to power failure and wiring, so that the condition that the measurement and control device is abnormal cannot be accurately judged in time, and if the measurement and control device is in a switching-on/off control failure in normal operation, the normal operation of a power supply system can be influenced. In order to solve the defects in the prior art, the utility model provides a simulation disc for testing the opening and closing of a circuit breaker.
The utility model provides a test circuit breaker opening and closing test simulation disc, which comprises a tripping circuit and a closing circuit; the tripping circuit comprises a tripping outlet, a first normally open contact of a switch opening and closing relay and a tripping relay coil, wherein the first normally open contact of the switch opening and closing relay and the tripping relay coil are sequentially connected in series; the switching-on loop comprises a switching-on outlet, a first normally closed contact point of the tripping relay, a second normally closed contact point of the switch switching-on and switching-off relay and a switching-on relay coil, wherein the switching-on outlet, the first normally closed contact point of the tripping relay, the second normally closed contact point of the switch switching-on and switching-off relay and the switching-on relay coil are sequentially connected in series.
In some embodiments, the apparatus further comprises a closing indication circuit, the closing indication circuit comprising: the switching relay comprises a switch opening and closing relay coil, a first normally open contact point of a closing relay, a second normally closed contact point of a tripping relay, a closing indicator lamp, a fourth normally open contact point of the switch opening and closing relay and a third normally open contact point of the switch opening and closing relay;
the switch on-off relay coil, the first normally open contact of the switch on-off relay, the second normally closed contact of the tripping relay, the switch-on indicator lamp and the fourth normally open contact of the switch on-off relay are sequentially connected in series, and the third normally open contact of the switch on-off relay is connected in parallel at two ends of the first normally open contact of the switch on-off relay.
In some embodiments, further comprising a trip indication circuit, the trip indication circuit comprising: a trip indicator lamp and a fifth normally-closed contact point of a switch opening and closing relay;
and the tripping indicator lamp and the fifth normally-closed contact of the switch on-off relay are sequentially connected in series and are connected in parallel at two ends of the serially-connected switch on-off indicator lamp and the fourth normally-open contact of the switch on-off relay.
In some embodiments, the tripping outlet and the closing outlet are two control outlets of the microcomputer measurement and control device, the tripping outlet is connected with the tripping loop, and the closing outlet is connected with the closing loop.
In some embodiments, the closing outlet and the tripping outlet output a positive power supply.
In some embodiments, the switch opening and closing relay coil controls the switching condition of the normally open contact and the normally closed contact.
In some embodiments, the closing indicator lights are illuminated red and the opening indicator lights are illuminated green.
The utility model provides a simulation disc for testing the opening and closing of a circuit breaker, which has the following beneficial effects:
the tripping relay coil and the closing relay coil used by the simulation panel provided by the utility model respectively represent a tripping coil and a closing coil of a switch of a measurement and control device, and the wiring principle is consistent with the action principle and the action of a time switch cabinet, so that the function of the measurement and control device can be accurately reflected;
the simulation disc provided by the utility model is small and exquisite in manufacture, easy to move, sensitive in action response, capable of saving manpower and material resources, capable of being used in different occasions and environments and capable of providing great help for installation and debugging of power supply system equipment.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic circuit structure diagram of a circuit breaker opening and closing simulation disc for testing circuit breaker according to an embodiment of the utility model;
illustration of the drawings:
KM1 is a tripping relay coil; KM2 is a closing relay coil; KM3 is a switch opening and closing relay coil; KM11 is a first normally closed contact point of the tripping relay; KM12 is a second normally closed contact of the tripping relay; the KM21 is a first normally open contact of a closing relay; KM31 is a first normally open contact of a switch opening and closing relay; KM32 is a second normally closed contact of the switch opening and closing relay; KM33 is a third normally open contact of the switch opening and closing relay; KM34 is a fourth normally open contact of the switch opening and closing relay; KM35 is a fifth normally closed contact point of the switch opening and closing relay; HD is a closing indicator light; LD is the trip indicator light.
Detailed Description
Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application. But merely as exemplifications of systems and methods consistent with certain aspects of the utility model, as detailed in the claims.
Referring to fig. 1, a schematic circuit structure diagram of the circuit testing opening and closing simulation disc of the circuit breaker is shown.
As shown in fig. 1, the present invention provides a simulation disc for testing opening and closing of a circuit breaker, including: a tripping loop and a closing loop; the tripping loop comprises a tripping outlet, a first normally open contact point KM31 of a switch opening and closing relay and a tripping relay coil KM1, wherein the first normally open contact point KM31 of the switch opening and closing relay and the tripping relay coil KM1 are sequentially connected in series; the switching-on loop comprises a switching-on outlet, a first normally closed contact point KM11 of a tripping relay, a second normally closed contact point KM32 of a switch switching-on and switching-off relay and a switching-on relay coil KM2, wherein the switching-on outlet, the first normally closed contact point KM11 of the tripping relay, the second normally closed contact point KM32 of the switch switching-on and switching-off relay and the switching-on relay coil KM2 are sequentially connected in series.
In this embodiment, still include closing an instruction return circuit, closing an instruction return circuit includes: the switch on-off relay coil KM3, the first normally open contact KM21 of the switch-on relay, the second normally closed contact KM12 of the tripping relay, the switch-on indicator lamp HD, the fourth normally open contact KM34 of the switch-on-off relay and the third normally open contact KM33 of the switch-on-off relay; the switch on-off relay coil KM3, the first normally open contact KM21 of the closing relay, the second normally closed contact KM12 of the tripping relay, the closing indicator lamp HD and the fourth normally open contact KM34 of the switch on-off relay are sequentially connected in series, and the third normally open contact KM33 of the switch on-off relay is connected in parallel at two ends of the first normally open contact KM21 of the closing relay.
When a switch of the microcomputer measurement and control device is switched to a switching-on position, a DC220V positive power supply output is generated at a switching-on outlet of the device, a switching-on relay coil KM2 is electrified, a first normally closed contact KM11 of a tripping relay is closed, a second normally closed contact KM32 of a switching-on and switching-off relay is closed, a switching-on relay coil KM2 is electrified to act, meanwhile, the positive power supply passes through a switching-on indicating circuit, a second normally closed contact KM12 of the tripping relay is closed, a first normally open contact KM21 of the switching-on relay is closed, a switching-off relay coil is electrified to act and is self-retained through a third normally open contact KM33 of the switching-off and switching-off relay, a fourth normally open contact KM34 of the switching-on and a switching-on indicating lamp HD is electrified to be turned on and display red, and switching-on operation is completed.
In this embodiment, further include the trip indicating circuit, the trip indicating circuit includes: a trip indicator lamp LD and a fifth normally-closed contact point KM35 of a switch opening and closing relay; the tripping indicator lamp LD and the fifth normally-closed contact point KM35 of the switch opening and closing relay are sequentially connected in series and are connected in parallel at two ends of the serially-connected closing indicator lamp HD and the fourth normally-open contact point KM34 of the switch opening and closing relay.
When the switch of the microcomputer measurement and control device is switched to a tripping position, a device tripping outlet has DC220V positive power supply output, the first normally-open contact KM31 of the switch opening and closing relay is closed, the tripping relay coil KM1 is electrified to act, the switch opening and closing relay coil KM3 is electrified, the fifth normally-closed contact of the switch opening and closing relay is closed, the tripping indicator lamp LD is electrified to be lightened and display green, the fourth normally-open contact KM34 of the switch opening and closing relay is disconnected at the moment, and the closing indicator lamp HD is extinguished.
It should be noted that after the closing loop is switched on, the switch opening and closing relay coil is always electrically attracted, that is, the first normally open contact point KM31 of the switch opening and closing relay is closed, but at the moment, the tripping outlet does not output power, so the tripping relay coil KM1 does not act, at the moment, the microcomputer measurement and control device switch is switched on to the tripping position, the tripping outlet has positive power output, the tripping relay coil KM1 is switched on, the second normally closed contact point KM12 of the tripping relay is disconnected, the switch opening and closing relay coil KM3 is powered off, the fifth normally closed contact point KM35 of the switch opening and closing relay is closed, the tripping action is completed, and the tripping indicator lamp LD is turned on.
In this embodiment, the trip outlet and the closing outlet are two control outlets of a microcomputer measurement and control device, the trip outlet is connected with a trip loop, and the closing outlet is connected with a closing loop; the switching-on outlet and the tripping-out outlet output a positive power supply; the switch on-off relay coil controls the switch condition of the normally open contact and the normally closed contact; the switching-on indicator lamp is lighted and displayed in red, and the switching-off indicator lamp is lighted and displayed in green.
The circuit breaker opening and closing simulation disc provided by the utility model can observe whether the tripping relay coil and the closing coil of the simulation disc normally act, and whether the tripping indicator lamp and the closing indicator lamp are normal by operating the switch of the measurement and control device, so that whether the opening and closing function of the measurement and control device is normal can be judged. At present, a microcomputer measurement and control device is adopted to control a switch in important power supply places such as a substation and the like, switching-on and switching-off operations are carried out on the switch, so that reliable operation of the measurement and control device is guaranteed, the measurement and control device possibly cannot be connected with the switch for testing due to condition limitation on the site, problems cannot be found in time, if the measurement and control device cannot normally control the switch after connection is completed, reasons are searched again, time delay is needed, equipment cannot be put into the switch in time at set time, and hidden dangers are brought to power supply reliability.
The circuit breaker opening and closing simulation disc can accurately reflect the functions of the measurement and control device, is simple to operate, high in efficiency and sensitive in response, saves manpower and material resources, can be used in different occasions and environments, and provides great help for installation and debugging of power supply system equipment.
The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.
Claims (7)
1. The utility model provides a test circuit breaker divide-shut brake simulation dish which characterized in that includes: a tripping loop and a closing loop; wherein the content of the first and second substances,
the tripping circuit comprises a tripping outlet, a first normally open contact of a switch opening and closing relay and a tripping relay coil, wherein the first normally open contact of the switch opening and closing relay and the tripping relay coil are sequentially connected in series;
the switching-on loop comprises a switching-on outlet, a first normally closed contact point of the tripping relay, a second normally closed contact point of the switch switching-on and switching-off relay and a switching-on relay coil, wherein the switching-on outlet, the first normally closed contact point of the tripping relay, the second normally closed contact point of the switch switching-on and switching-off relay and the switching-on relay coil are sequentially connected in series.
2. The simulation disc for testing the opening and closing of the circuit breaker according to claim 1, further comprising a closing indication circuit, wherein the closing indication circuit comprises: the switching relay comprises a switch opening and closing relay coil, a first normally open contact point of a closing relay, a second normally closed contact point of a tripping relay, a closing indicator lamp, a fourth normally open contact point of the switch opening and closing relay and a third normally open contact point of the switch opening and closing relay;
the switch on-off relay coil, the first normally open contact of the switch on-off relay, the second normally closed contact of the tripping relay, the switch-on indicator lamp and the fourth normally open contact of the switch on-off relay are sequentially connected in series, and the third normally open contact of the switch on-off relay is connected in parallel at two ends of the first normally open contact of the switch on-off relay.
3. The test circuit breaker opening and closing simulation disc of claim 1, further comprising a trip indication circuit, wherein the trip indication circuit comprises: a trip indicator lamp and a fifth normally-closed contact point of a switch opening and closing relay;
and the tripping indicator lamp and the fifth normally-closed contact of the switch on-off relay are sequentially connected in series and are connected in parallel at two ends of the serially-connected switch on-off indicator lamp and the fourth normally-open contact of the switch on-off relay.
4. The simulation disc for testing the opening and closing of the circuit breaker according to claim 1, wherein the tripping outlet and the closing outlet are two control outlets of a microcomputer measurement and control device, the tripping outlet is connected with a tripping circuit, and the closing outlet is connected with a closing circuit.
5. The test circuit breaker opening and closing simulation disc as claimed in claim 1, wherein the closing outlet and the tripping outlet output a positive power supply.
6. The simulation disc for testing the opening and closing of the circuit breaker according to claim 1, wherein the switch opening and closing relay coil controls the opening and closing conditions of the normally open contact and the normally closed contact.
7. The simulation disc for testing the opening and closing of the circuit breaker according to claim 1, wherein the closing indicator lamp is lighted and displayed in red, and the opening indicator lamp is lighted and displayed in green.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122724680.XU CN216351095U (en) | 2021-11-08 | 2021-11-08 | Test circuit breaker divide-shut brake simulation dish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122724680.XU CN216351095U (en) | 2021-11-08 | 2021-11-08 | Test circuit breaker divide-shut brake simulation dish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216351095U true CN216351095U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122724680.XU Active CN216351095U (en) | 2021-11-08 | 2021-11-08 | Test circuit breaker divide-shut brake simulation dish |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216351095U (en) |
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2021
- 2021-11-08 CN CN202122724680.XU patent/CN216351095U/en active Active
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