CN208352969U - A power distribution system to prevent mis-closing circuit breakers - Google Patents
A power distribution system to prevent mis-closing circuit breakers Download PDFInfo
- Publication number
- CN208352969U CN208352969U CN201820933851.5U CN201820933851U CN208352969U CN 208352969 U CN208352969 U CN 208352969U CN 201820933851 U CN201820933851 U CN 201820933851U CN 208352969 U CN208352969 U CN 208352969U
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- Prior art keywords
- relay
- circuit breaker
- machine
- control device
- outlet
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- 238000005259 measurement Methods 0.000 claims abstract 8
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000005684 electric field Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses a prevent that mistake from closing distribution system of circuit breaker belongs to electric field, has solved the mistake and has closed the circuit breaker and lead to the problem that the secondary of power supply system short circuit strikeed and equipment damaged. The utility model discloses an on-spot high-voltage apparatus, the circuit breaker, other control box of computer protection measurement and control device and machine, on-spot high-voltage apparatus's the output and the input of circuit breaker link to each other, computer protection measurement and control device disposes first outlet relay, first outlet relay links to each other with the circuit breaker, other control box of machine links to each other with the circuit breaker, computer protection measurement and control device and other control box of machine link to each other, still include auxiliary relay, computer protection measurement and control device still disposes second outlet relay, auxiliary relay's one end links to each other with second outlet relay, auxiliary relay's the other end links to each other with other control box of machine, auxiliary relay is the. The utility model has the advantages that: the automatic closing circuit can be closed by the automatic locking machine, and the operation of mistakenly closing the circuit breaker by a worker is prevented.
Description
Technical field
The utility model belongs to electric field, and in particular to a kind of distribution system for preventing falsely close circuit breaker.
Background technique
In smelter 6kV~35kV distribution system, production scene high-pressure hydraulic pump, blower, crusher, travelling belt etc. are set
It is standby, require the operation of live start and stop, the case where live start and stop is very frequent.With the continuous development and change of automatic technology
Power station personnel's simplifies, and switchyard, substation have been carried out unattended.In staffed station institute, live high-tension apparatus or confession
After electrical circuit breaks down, latch switch is transformed into locked position of coupler by operator on duty, it is live then can not close a floodgate.But in unmanned value
The station institute kept, produced on-site personnel do not know about relay protection movement feelings after current supply circuit failure or equipment fault, switch trip
Condition often operates shutting-brake control switch by machine and carries out closing operation, leads to the impact of power supply system second short circuit and equipment in this way
Secondary damage, in some instances it may even be possible to cause personal safety accident.
Therefore, in unattended station institute, the equipment of production scene start and stop can be realized normal by machine under normal circumstances
Breaking-closing operating guarantees that production is normally carried out.After the failures such as ground connection, short circuit occur for the equipment current supply circuit cable, motor,
Shutting-brake control loop is just particularly important by breech-block while protective relaying device acts tripping circuit breaker.
Utility model content
The purpose of the utility model is to provide a kind of distribution systems for preventing falsely close circuit breaker, to solve falsely close circuit breaker and
The problem of leading to the secondary damage of the impact of power supply system second short circuit and equipment.
The technical solution of the utility model is: a kind of distribution system preventing falsely close circuit breaker, including live high-tension apparatus,
Breaker, microcomputer protecting controller and machine side operation box, the output end of live high-tension apparatus are connected with the input terminal of breaker,
Microcomputer protecting controller is configured with first outlet relay, and first outlet relay is connected with breaker, machine side operation box and
Breaker is connected, and microcomputer protecting controller is connected with machine side operation box, further includes intermediate relay, microcomputer protecting controller
Be also configured with second outlet relay, one end of intermediate relay is connected with second outlet relay, intermediate relay it is another
End is connected with machine side operation box, and intermediate relay is latch-in relay.
Remote control is equipped between microcomputer protecting controller and intermediate relay as a further improvement of the utility model,
Output contact.It can be operated by remote control after field failure elimination, involution intermediate relay, scene can be into after involution
Breaking-closing operating by row machine.
The beneficial effects of the utility model are:
1. in unattended operation transformer station, the high-tension apparatuses of production scene start and stop breaks down or high-voltage electricity because of current supply circuit
After the device fails such as machine, by the logic blocking technology of microcomputer protecting controller and intermediate relay, it can close automatically
Closing circuit by lock machine, effectively prevent the operation of production scene personnel's falsely close circuit breaker, avoids secondary system short-circuit impact, sets
The generation and personal safety accident of standby secondary damage accident, make unattended station institute field device start and stop more safely may be used
It leans on, is conducive to that substation, switchyard is promoted to realize unattended and long-range monitoring；
2. after Failure elimination involution can be carried out to intermediate relay on the spot or by microcomputer protecting controller reality
Now long-range involution, unlocking function, scene can open machine again.
Detailed description of the invention
Fig. 1 is the structural block diagram of the utility model；
Fig. 2 is the latching logic circuit diagram of the utility model.
In figure, 1- bus；2- breaker；3- air switch；The scene 4- high-tension apparatus；5- microcomputer protecting controller；6-
Intermediate relay；7- machine side operation box；71- closing switch；HQ- closing coil；TQ- breaking coil；KA- intermediate relay is normally closed
Contact；WJ1- first outlet relay outlet junctions；WJ2- second outlet relay outlet junctions；WJ3- is remotely controlled output contact.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described in detail.
A kind of distribution system preventing falsely close circuit breaker, as shown in Figure 1, including live high-tension apparatus 4, breaker 2, microcomputer
The output end of protection supervisory equipment 5 and machine side operation box 7, live high-tension apparatus 4 is connected with the input terminal of breaker 2, and microcomputer is protected
It protects measure and control device 5 and is configured with first outlet relay, first outlet relay is connected with breaker 2, machine side operation box 7 and open circuit
Device 2 is connected, and microcomputer protecting controller 5 is connected with machine side operation box 7, further includes intermediate relay 6, microcomputer protecting controller
5 are also configured with second outlet relay, and one end of intermediate relay 6 is connected with second outlet relay, intermediate relay 6 it is another
One end is connected with machine side operation box 7, and intermediate relay 6 is latch-in relay.
Remote control output contact WJ3 is equipped between microcomputer protecting controller 5 and intermediate relay 6.
The latching logic of the utility model as shown in Fig. 2, equipment under normal circumstances, the combined floodgate of operation machine side operation box 7 is opened
71 are closed, closing coil HQ obtains electric, the combined floodgate of breaker 2, distribution system and the connection of bus 1；When short circuit or equipment occur for power transmission circuit
After breaking down, microcomputer protecting controller 5 is acted, and first outlet relay outlet junctions WJ1 closure, breaking coil TQ is obtained
Electricity, breaker 2 disconnect, and second outlet relay outlet junctions WJ2 is closed at, and intermediate relay normally closed contact KA is disconnected, and close
Lock live closing circuit；After Failure elimination, involution is remotely controlled by microcomputer protecting controller, remote control output contact WJ3 is closed,
Intermediate relay 6 is driven, intermediate relay normally closed contact KA is connected, closing circuit unlocking by machine.Air switch 3 can be to micro-
Machine protection supervisory equipment 5, intermediate relay 6 and operation machine side operation box 7 form protection.
Above-described is only the exemplary embodiment of the utility model, and the technical solution of the utility model is simultaneously not limited
System, it should be pointed out that those skilled in the art, under technical inspiration provided by the utility model, as ability
The common knowledge in domain can also make other equivalent modifications and improvement, also should be regarded as the protection scope of the utility model.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820933851.5U CN208352969U (en) | 2018-06-15 | 2018-06-15 | A power distribution system to prevent mis-closing circuit breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820933851.5U CN208352969U (en) | 2018-06-15 | 2018-06-15 | A power distribution system to prevent mis-closing circuit breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208352969U true CN208352969U (en) | 2019-01-08 |
Family
ID=64883561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820933851.5U Expired - Fee Related CN208352969U (en) | 2018-06-15 | 2018-06-15 | A power distribution system to prevent mis-closing circuit breakers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208352969U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289684A (en) * | 2019-06-12 | 2019-09-27 | 国网河南省电力公司电力科学研究院 | Automatic restart control device and method of a microcomputer device |
| CN112447456A (en) * | 2020-11-04 | 2021-03-05 | 国网河南省电力公司安阳供电公司 | On-site remote control operating device for circuit breaker |
-
2018
- 2018-06-15 CN CN201820933851.5U patent/CN208352969U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289684A (en) * | 2019-06-12 | 2019-09-27 | 国网河南省电力公司电力科学研究院 | Automatic restart control device and method of a microcomputer device |
| CN110289684B (en) * | 2019-06-12 | 2022-04-08 | 国网河南省电力公司电力科学研究院 | An automatic restart control device and method of a microcomputer device |
| CN112447456A (en) * | 2020-11-04 | 2021-03-05 | 国网河南省电力公司安阳供电公司 | On-site remote control operating device for circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 Termination date: 20190615 |