CN204302455U - A kind of circuit-breaker status checkout gear - Google Patents
A kind of circuit-breaker status checkout gear Download PDFInfo
- Publication number
- CN204302455U CN204302455U CN201420797708.XU CN201420797708U CN204302455U CN 204302455 U CN204302455 U CN 204302455U CN 201420797708 U CN201420797708 U CN 201420797708U CN 204302455 U CN204302455 U CN 204302455U
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- China
- Prior art keywords
- circuit
- relay
- resistance
- breaker
- loop
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of circuit-breaker status checkout gear, comprise on-off circuit, voltage acquisition circuit, alarm relay loop, shell and lead-out terminal, by the control of on-off circuit to divide-shut brake circuit breaker auxiliary contact two ends potential change, judge that whether the running status in divide-shut brake loop is correct, the break-make of the output control relay KA of on-off circuit, draws the auxiliary contact of relay K A, for the instruction of divide-shut brake loop state and status alert.The utility model has the advantages that: the operation total state accurately monitoring circuit-breaker switching on-off loop, avoid monitoring blind area; Sampling circuit electric current little (being less than 2mA), can not affect the normal work of original divide-shut brake circuit positions relay, reduction accident occurrence probability.
Description
Technical field
The utility model relates to a kind of circuit-breaker status checkout gear of a kind of electric power system circuit breaker Stateful Inspection.
Background technology
There is a lot of operating breaker ("on" position) in power system, alarm signal (breaker can not monitor closing circuit integrity under "on" position) can not be sent out when closing circuit breaks down, cause reclosing action breaker to close a floodgate unsuccessfully when system generation transient fault, accident is expanded further; Breaker (gate-dividing state) in for subsequent use, alarm signal (breaker can not monitor sub-gate circuit integrity under gate-dividing state) can not be sent out when sub-gate circuit breaks down, send out alarm signal (can monitor separating brake integrity during breaker closing state) when breaker (gate-dividing state) input coefficient in for subsequent use runs (breaker closing), operating breaker is forced to the process that has a power failure.Therefore, intend a kind of novel monitoring device of development and can monitor that breaker divides, the total state of closing circuit, providing accurate basis for estimation for running, guaranteeing switch correct operation.Field of circuit breakers not yet starts the research of this respect both at home and abroad at present.The new highlight of this project is by Installation of New Type supervising device, correctly monitors operating breaker displacement total state, and can not affect original operation monitoring loop works.
Summary of the invention
For overcoming the deficiencies in the prior art, the purpose of this utility model is to provide a kind of circuit-breaker status checkout gear, this device can realize that electric power system circuit breaker divides, closing circuit total state monitors alarm function, promotes Operation of Electric Systems and monitors level, reduction accident occurrence probability.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of circuit-breaker status checkout gear, comprise on-off circuit, voltage acquisition circuit, alarm relay loop, shell and lead-out terminal, particular circuit configurations is: voltage acquisition circuit is by resistance R2, resistance R3 forms, alarm relay loop is primarily of relay K A, resistance R1 forms, lead-out terminal is arranged on the panel of housing, resistance R2 one end is connected with the lead-out terminal K1 being arranged on shell, the resistance R2 other end and resistance R3 one end, Zener diode D negative pole, 1 pin of on-off circuit connects, the resistance R3 other end and lead-out terminal K2, Zener diode D positive pole, 2 pin of on-off circuit connect, 6 pin of on-off circuit are connected with resistance R1 one end, the resistance R1 other end is connected with positive source, 4 pin of on-off circuit are connected with relay K A coil one end, the relay K A coil other end is connected with power cathode, the auxiliary contact of relay K A receives the signal output terminal J1-J4 of shell respectively, described lead-out terminal K1 with K2 is connected breaker auxiliary contact two lateral circuit in tested loop respectively.
Compared with prior art, the beneficial effects of the utility model are:
This device accurately monitors that breaker divides, the operation total state of closing circuit, avoids monitoring blind area; Sampling circuit electric current little (being less than 2mA), can not affect original point, the normal work of closing circuit position relay, reduction accident occurrence probability.
Accompanying drawing explanation
Fig. 1 is electrical schematic diagram of the present utility model.
Fig. 2 is fundamental diagram of the present utility model.
Fig. 3 is the utility model case panel structure schematic diagram.
Detailed description of the invention
Below in conjunction with Figure of description, the utility model is described in detail, but it should be noted that enforcement of the present utility model is not limited to following embodiment.
See Fig. 1-Fig. 3, a kind of circuit-breaker status checkout gear, comprise on-off circuit MC, voltage acquisition circuit, alarm relay loop, shell and lead-out terminal, concrete observation circuit structure is: voltage acquisition circuit is by resistance R2, resistance R3 forms, alarm relay Hui Qi road is primarily of relay K A, resistance R1 forms, lead-out terminal is arranged on the panel of housing, resistance R2 one end is connected with the lead-out terminal K1 being arranged on shell, the resistance R2 other end and resistance R3 one end, Zener diode D negative pole, 1 pin of on-off circuit MC connects, the resistance R3 other end and lead-out terminal K2, Zener diode D positive pole, 2 pin of on-off circuit MC connect, acquisition circuit connects complete.6 pin of on-off circuit MC are connected with resistance R1 one end, the resistance R1 other end is connected with positive source by the terminal being located at housing, 4 pin of on-off circuit MC are connected with relay K A coil one end, the relay K A coil other end is connected with power cathode by the terminal being located at housing, the auxiliary contact of relay K A receives the signal output terminal J1-J4 of shell respectively, and described lead-out terminal K1 with K2 is connected breaker auxiliary contact two lateral circuit in tested loop respectively; By on-off circuit MC to point, the control of closing circuit breaker auxiliary contact two ends potential change, can realize judging point, whether the running status of closing circuit correct, the break-make of the output control relay KA of on-off circuit MC, the auxiliary contact of relay K A is drawn, for point, closing circuit state instruction and status alert, form monitoring circuit, each breaker divides, have two identical monitoring circuits in combined floodgate total state monitoring device, be respectively used to monitor separating brake, closing circuit.
Claims (1)
1. a circuit-breaker status checkout gear, it is characterized in that, comprise on-off circuit, voltage acquisition circuit, alarm relay loop, shell and lead-out terminal, particular circuit configurations is: voltage acquisition circuit is by resistance R2, resistance R3 forms, alarm relay loop is primarily of relay K A, resistance R1 forms, lead-out terminal is arranged on the panel of housing, resistance R2 one end is connected with the lead-out terminal K1 being arranged on shell, the resistance R2 other end and resistance R3 one end, Zener diode D negative pole, 1 pin of on-off circuit connects, the resistance R3 other end and lead-out terminal K2, Zener diode D positive pole, 2 pin of on-off circuit connect, 6 pin of on-off circuit are connected with resistance R1 one end, the resistance R1 other end is connected with positive source, 4 pin of on-off circuit are connected with relay K A coil one end, the relay K A coil other end is connected with power cathode, the auxiliary contact of relay K A receives the signal output terminal J1-J4 of shell respectively, described lead-out terminal K1 with K2 is connected breaker auxiliary contact two lateral circuit in tested loop respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420797708.XU CN204302455U (en) | 2014-12-15 | 2014-12-15 | A kind of circuit-breaker status checkout gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420797708.XU CN204302455U (en) | 2014-12-15 | 2014-12-15 | A kind of circuit-breaker status checkout gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204302455U true CN204302455U (en) | 2015-04-29 |
Family
ID=53107986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420797708.XU Expired - Fee Related CN204302455U (en) | 2014-12-15 | 2014-12-15 | A kind of circuit-breaker status checkout gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204302455U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202955A (en) * | 2017-07-27 | 2017-09-26 | 大力电工襄阳股份有限公司 | A kind of vacuum contactor on/off switch state indirect detection devices and methods therefor |
| CN109216100A (en) * | 2018-09-09 | 2019-01-15 | 湛江电力有限公司 | A kind of monitoring indicating circuit of power switch vacuum circuit breaker |
-
2014
- 2014-12-15 CN CN201420797708.XU patent/CN204302455U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202955A (en) * | 2017-07-27 | 2017-09-26 | 大力电工襄阳股份有限公司 | A kind of vacuum contactor on/off switch state indirect detection devices and methods therefor |
| CN107202955B (en) * | 2017-07-27 | 2023-07-25 | 大力电工襄阳股份有限公司 | Device and method for indirectly detecting on-off state of vacuum contactor |
| CN109216100A (en) * | 2018-09-09 | 2019-01-15 | 湛江电力有限公司 | A kind of monitoring indicating circuit of power switch vacuum circuit breaker |
| CN109216100B (en) * | 2018-09-09 | 2024-01-02 | 湛江电力有限公司 | Monitoring indication circuit of power switch vacuum circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20181215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |