CN211508591U - Multifunctional relay protection system of high-voltage circuit breaker - Google Patents
Multifunctional relay protection system of high-voltage circuit breaker Download PDFInfo
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- CN211508591U CN211508591U CN202020498557.3U CN202020498557U CN211508591U CN 211508591 U CN211508591 U CN 211508591U CN 202020498557 U CN202020498557 U CN 202020498557U CN 211508591 U CN211508591 U CN 211508591U
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- circuit breaker
- voltage circuit
- relay
- high voltage
- tripping
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Abstract
The utility model relates to a high voltage circuit breaker's multi-functional relay protection system has solved the inside machinery of high voltage circuit breaker and has prevented jumping the problem that takes place the conflict with preventing of computer protection device. Its technical scheme summarizes to be, high voltage circuit breaker's multi-functional relay protection system includes control power supply, microcomputer protection device, combined floodgate outlet relay, high voltage circuit breaker and machinery and prevents jumping relay, microcomputer protection device, high voltage circuit breaker and machinery prevent jumping relay are connected with control power supply respectively, and high voltage circuit breaker is connected with machinery prevents jumping relay, and combined floodgate outlet relay is connected with microcomputer protection device, and combined floodgate outlet relay still is connected with high voltage circuit breaker's combined floodgate return circuit, still includes the connection piece, the one end of connection piece is connected with the supplementary normally open contact of high voltage circuit breaker, the other end of connection piece can be in the microcomputer protection return circuit and machinery prevents jumping the switching between the return circuit in a. The multifunctional relay protection system is suitable for the high-voltage circuit breaker.
Description
Technical Field
The utility model relates to an industrial control system trouble emergency protection field, concretely relates to high voltage circuit breaker's multi-functional relay protection system.
Background
The high-voltage circuit breaker is used for controlling a high-voltage circuit and is one of important electrical components in the high-voltage circuit. The circuit breaker is used for switching on or switching off a circuit in normal operation, and the fault condition is rapidly switched off under the action of the relay protection device. High voltage circuit breakers are a wide range of electrical devices used in emergency protection systems for faults.
The existing high-voltage circuit breaker is only provided with one relay protection device, and when the relay protection device in the high-voltage circuit breaker fails, the high-voltage circuit breaker cannot timely break a circuit under the condition of a fault of an emergency system, so that serious consequences can be caused. The prior art adds a microcomputer protection device to the emergency system to solve this problem.
However, the following problems occur during use: after the high-voltage circuit breaker is switched off by an operator, the control power switch is switched off, and when the control power switch needs to be switched on, the control power switch is closed again to carry out switching-on operation, so that the switching-on operation can be successful; if an operator switches off the high-voltage circuit breaker, the control power switch is not switched off, and the direct switching-on operation cannot be successful when the high-voltage circuit breaker needs to be switched on. Analysis shows that the situation that the high-voltage circuit breaker cannot be switched on frequently occurs due to the conflict between the mechanical anti-tripping in the high-voltage circuit breaker and the anti-tripping of a microcomputer protection device, and further the normal power supply of equipment is influenced. And the trip prevention of the microcomputer protection device in the existing system is simultaneously used with the mechanical trip prevention loop of the high-voltage circuit breaker, so that a direct-current parasitic loop is easily generated, logic disorder is caused, and protection misoperation or no action is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high voltage circuit breaker's multi-functional relay protection system, the machinery of having solved high voltage circuit breaker prevents jumping and computer protection device prevents jumping the problem that takes place the conflict, and simple structure is practical, and low cost can effectual extensive popularization.
The utility model discloses take following technical scheme to realize above-mentioned purpose, high voltage circuit breaker's multi-functional relay protection system, prevent jumping the relay including control power supply, microcomputer protection device, combined floodgate outlet relay, high voltage circuit breaker and machinery, microcomputer protection device, high voltage circuit breaker and machinery prevent jumping the relay and are connected with control power supply respectively, and high voltage circuit breaker prevents jumping the relay with machinery and is connected, and combined floodgate outlet relay is connected with microcomputer protection device, and combined floodgate outlet relay still with high voltage circuit breaker's combined floodgate return circuit connection, still include the connection piece, the one end of connection piece is connected with the supplementary normally open contact of high voltage circuit breaker, the other end of connection piece can prevent jumping in a flexible way and switch between the return circuit at.
Further, in order to prolong the service life of the high-voltage circuit breaker, the high-voltage circuit breaker is a spring energy storage type high-voltage vacuum circuit breaker.
Furthermore, in order to improve the breaking capacity of the circuit breaker, the multifunctional relay protection system of the high-voltage circuit breaker further comprises an energy storage power supply and an energy storage system, wherein the energy storage power supply is connected with the energy storage system, and a microswitch in the energy storage system is respectively connected with the spring energy storage type high-voltage vacuum circuit breaker and the mechanical anti-tripping relay.
Furthermore, in order to increase the protection capability of the system during opening, the multifunctional relay protection system of the high-voltage circuit breaker further comprises a tripping outlet relay, the tripping outlet relay is connected with a microcomputer protection device, and the tripping outlet relay is also connected with an opening coil of the high-voltage circuit breaker.
The utility model discloses the one end of connection piece is connected with the supplementary normally open contact of high voltage circuit breaker, the connection piece other end can be in computer protection return circuit and mechanical anti-bouncing between the return circuit in a flexible way switch, the machinery of having avoided high voltage circuit breaker in the system prevents bouncing and computer protection device prevents bouncing and takes place the conflict, the machinery of having avoided computer protection device to prevent bouncing and high voltage circuit breaker simultaneously prevents bouncing the return circuit and uses simultaneously, produce direct current parasitic loop, cause the chaotic occurence of failure of logic, the equipment maintenance cost has been reduced, the reliability of electrical equipment has been improved, safety in production has been guaranteed, the utility model has the advantages of simple structure and low cost, can effectively use widely on a large scale.
Drawings
Fig. 1 is a schematic block diagram of the structure of the present invention.
In the attached drawing, 1 is the first connection piece terminal on the high voltage circuit breaker panel, 2 is the second connection piece terminal on the high voltage circuit breaker panel, and 3 is the third connection piece terminal on the high voltage circuit breaker panel.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and embodiments.
The utility model discloses high voltage circuit breaker's multi-functional relay protection system, its structural principle block diagram is as shown in figure 1, including control power supply, microcomputer protection device, combined floodgate outlet relay, high voltage circuit breaker and machinery trip relay of preventing, microcomputer protection device, high voltage circuit breaker and machinery trip relay of preventing are connected with control power supply respectively, and high voltage circuit breaker and machinery trip relay of preventing are connected, and combined floodgate outlet relay is connected with microcomputer protection device, and combined floodgate outlet relay still is connected with high voltage circuit breaker's combined floodgate return circuit, still includes the connection piece, the one end of connection piece is connected with the supplementary normally open contact of high voltage circuit breaker, the other end of connection piece can be in microcomputer protection return circuit and machinery trip switching between the return.
In order to extend the service life of the high voltage circuit breaker in the system, the high voltage circuit breaker may be a spring energy storage type high voltage vacuum circuit breaker.
In order to improve the breaking capacity of the high-voltage circuit breaker in the system, the multifunctional relay protection system of the high-voltage circuit breaker further comprises an energy storage power supply and an energy storage system, wherein the energy storage power supply is connected with the energy storage system, and a microswitch in the energy storage system is respectively connected with the spring energy storage type high-voltage vacuum circuit breaker and a mechanical anti-tripping relay.
In order to increase the protection capability of the system during opening, the multifunctional relay protection system of the high-voltage circuit breaker further comprises a tripping outlet relay, the tripping outlet relay is connected with a microcomputer protection device, and the tripping outlet relay is further connected with an opening coil of the high-voltage circuit breaker.
Examples
The structure schematic diagram of the multifunctional relay protection system of the high-voltage circuit breaker of the embodiment is shown in figure 1, and comprises a control power supply, a microcomputer protection device, a closing outlet relay, a high-voltage circuit breaker and a mechanical anti-tripping relay, wherein the microcomputer protection device, the high-voltage circuit breaker and the mechanical anti-tripping relay are respectively connected with the control power supply, the high-voltage circuit breaker is connected with the mechanical anti-tripping relay, the closing outlet relay is connected with the microcomputer protection device, the closing outlet relay is also connected with a closing loop of the high-voltage circuit breaker, three circular holes are drilled on a panel of the high-voltage circuit breaker, the sizes of the circular holes are matched with those of connecting sheet binding posts, then the connecting sheet binding posts penetrate through the circular holes and are fixed in the circular holes by nuts, auxiliary normally open contacts of the high-voltage circuit breaker are connected with a first connecting sheet binding, one end of the connecting sheet is connected with the first connecting sheet binding post 1, the other end of the connecting sheet is connected with the third connecting sheet binding post 3, and the other end of the connecting sheet can be flexibly switched between the second connecting sheet binding post 2 and the third connecting sheet binding post 3.
To sum up, the utility model discloses having avoided computer protection device's the mechanical of preventing of high voltage circuit breaker to jump and having taken place the conflict with the high voltage circuit breaker among high voltage circuit breaker's the multi-functional relay protection system, having also avoided computer protection device's the mechanical of preventing of jumping and high voltage circuit breaker to jump the return circuit and use simultaneously, produce the parasitic return circuit of direct current, cause the chaotic occurence of failure of logic, reduced equipment maintenance cost, improved electrical equipment's reliability, guaranteed safety in production, the mechanism is simple and practical, low cost can effectively promote on a large scale.
Claims (4)
1. High voltage circuit breaker's multi-functional relay protection system, including control power supply, microcomputer protection device, combined floodgate outlet relay, high voltage circuit breaker and machinery tripping operation prevention relay, microcomputer protection device, high voltage circuit breaker and machinery tripping operation prevention relay are connected with control power supply respectively, and high voltage circuit breaker is connected with machinery tripping operation prevention relay, and combined floodgate outlet relay is connected with microcomputer protection device, and combined floodgate outlet relay still with high voltage circuit breaker's combined floodgate return circuit connection, its characterized in that: the high-voltage circuit breaker is characterized by further comprising a connecting sheet, wherein one end of the connecting sheet is connected with an auxiliary normally open contact of the high-voltage circuit breaker, and the other end of the connecting sheet can be flexibly switched between a microcomputer protection circuit and a mechanical anti-tripping circuit.
2. The multifunctional relay protection system of a high voltage circuit breaker of claim 1, wherein: the high-voltage circuit breaker is a spring energy storage type high-voltage vacuum circuit breaker.
3. The multifunctional relay protection system of a high voltage circuit breaker of claim 2, wherein: the energy storage power supply is connected with the energy storage system, and the micro switch in the energy storage system is respectively connected with the spring energy storage type high-voltage vacuum circuit breaker and the mechanical anti-tripping relay.
4. The multifunctional relay protection system of a high voltage circuit breaker of claim 1, wherein: the tripping device further comprises a tripping outlet relay, the tripping outlet relay is connected with the microcomputer protection device, and the tripping outlet relay is further connected with a brake separating coil of the high-voltage circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020498557.3U CN211508591U (en) | 2020-04-08 | 2020-04-08 | Multifunctional relay protection system of high-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020498557.3U CN211508591U (en) | 2020-04-08 | 2020-04-08 | Multifunctional relay protection system of high-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211508591U true CN211508591U (en) | 2020-09-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020498557.3U Active CN211508591U (en) | 2020-04-08 | 2020-04-08 | Multifunctional relay protection system of high-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211508591U (en) |
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2020
- 2020-04-08 CN CN202020498557.3U patent/CN211508591U/en active Active
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