CN104297675A - All-state monitoring apparatus for opening and closing of circuit breaker - Google Patents
All-state monitoring apparatus for opening and closing of circuit breaker Download PDFInfo
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- CN104297675A CN104297675A CN201410342638.3A CN201410342638A CN104297675A CN 104297675 A CN104297675 A CN 104297675A CN 201410342638 A CN201410342638 A CN 201410342638A CN 104297675 A CN104297675 A CN 104297675A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 12
- 238000012806 monitoring device Methods 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 10
- 230000004044 response Effects 0.000 abstract description 3
- 238000005070 sampling Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000005693 optoelectronics Effects 0.000 abstract 3
- 238000002955 isolation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The invention relates to an all-state monitoring apparatus for opening and closing of a circuit breaker. Potential changing at two ends of a circuit breaker auxiliary contact point of the opening-closing loop is monitored by using an optoelectronic signal acquisition module MC and then whether the operation state of the opening-closing loop is correct is determined. The output of the optoelectronic signal acquisition module MC controls the on/off of a relay KA; and the auxiliary contact point of the relay KA is led out, thereby realizing opening-closing loop state indication and state alarming. The provided apparatus has the following advantages: the total operation state of the opening-closing loop of the circuit breaker is monitored accurately, thereby avoiding the monitoring dead zone; with the photoelectric acquisition technology, the optoelectronic isolation function is realized, thereby preventing the loop interference; on the basis of the photoelectric acquisition technology, the signal can be collected correctly and reliably and the response speed is fast; and the sampling loop current that is less than 2mA is low, so that normal working of the original opening-closing loop relay is not influenced and thus the accident occurrence probability is reduced.
Description
Technical field
The present invention relates to that a kind of isolating switch of a kind of electric power system circuit breaker status surveillance divides, combined floodgate total state monitoring device.
Background technology
There is a lot of operating isolating switch ("on" position) in electric system, alarm signal (isolating switch 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; Isolating switch (gate-dividing state) in for subsequent use, alarm signal (isolating switch 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 isolating switch (gate-dividing state) input coefficient in for subsequent use runs (breaker closing), operating isolating switch is forced to the process that has a power failure.Therefore, intend a kind of novel monitoring device of development and can monitor that isolating switch 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 isolating switch 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 object of this invention is to provide that a kind of isolating switch divides, combined floodgate total state monitoring device, based on photoelectric signal collection technology, realize that electric power system circuit breaker divides, closing circuit total state monitors alarm function, promote Operation of Electric Systems and monitor level, reduction accident occurrence probability.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of isolating switch divides, combined floodgate total state monitoring device, and comprise photoelectric signal collection module 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 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, voltage stabilizing diode D negative pole, 1 pin of photoelectric signal collection module MC connects, the resistance R3 other end and lead-out terminal K2, voltage stabilizing diode D positive pole, 2 pin of photoelectric signal collection module MC connect, 6 pin of photoelectric signal collection module MC are connected with resistance R1 one end, the resistance R1 other end is connected with positive source, 4 pin of photoelectric signal collection module MC 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 isolating switch auxiliary contact two lateral circuit in tested loop respectively, by photoelectric signal collection module MC to point, the supervision of closing circuit isolating switch auxiliary contact two ends potential change, judgement divides, whether the running status of closing circuit is correct, the break-make of the output control relay KA of photoelectric signal collection module MC, the auxiliary contact of relay K A is drawn, receive on lead-out terminal, for point, closing circuit state instruction and status alert, two monitoring circuits be respectively used to monitoring breaker point, closing circuit.
Compared with prior art, the invention has the beneficial effects as follows:
1) this device accurately monitors that isolating switch divides, the operation total state of closing circuit, avoids monitoring blind area;
2) based on photoelectric acquisition technology, there is Phototube Coupling function, prevent loop from disturbing;
3) based on photoelectric acquisition technology, signals collecting is correctly reliable, fast response time;
4) based on photoelectric acquisition technology, 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 invention.
Fig. 2 is fundamental diagram of the present invention.
Fig. 3 is inventive shell panel construction schematic diagram.
Embodiment
Below in conjunction with Figure of description, the present invention is described in detail, but it should be noted that enforcement of the present invention is not limited to following embodiment.
See Fig. 1-Fig. 3, a kind of isolating switch divide, combined floodgate total state monitoring device, comprise photoelectric signal collection module MC, voltage acquisition circuit, alarm relay loop, shell and lead-out terminal, concrete observation circuit structure is:
Voltage acquisition circuit is made up of resistance R2, resistance R3, alarm relay Hui Qi road forms primarily of relay K A, resistance R1, 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 is connected with 1 pin of resistance R3 one end, voltage stabilizing diode D negative pole, photoelectric signal collection module MC, the resistance R3 other end is connected with 2 pin of lead-out terminal K2, voltage stabilizing diode D positive pole, photoelectric signal collection module MC, and acquisition circuit connects complete.6 pin of photoelectric signal collection module 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 photoelectric signal collection module 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 isolating switch auxiliary contact two lateral circuit in tested loop respectively; By photoelectric signal collection module MC to point, the supervision of closing circuit isolating switch auxiliary contact two ends potential change, judgement divides, whether the running status of closing circuit is correct, the break-make of the output control relay KA of photoelectric signal collection module MC, the auxiliary contact of relay K A is drawn, for point, closing circuit state instruction and status alert, form monitoring circuit, each isolating switch divides, have two identical monitoring circuits in combined floodgate total state monitoring device, is respectively used to monitor separating brake, closing circuit.
Advantage of the present invention is:
1) this device accurately monitors that isolating switch divides, the operation total state of closing circuit, avoids monitoring blind area;
2) based on photoelectric acquisition technology, there is Phototube Coupling function, prevent loop from disturbing;
3) based on photoelectric acquisition technology, signals collecting is correctly reliable, fast response time;
4) based on photoelectric acquisition technology, 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.
Claims (1)
1. isolating switch divide, a combined floodgate total state monitoring device, it is characterized in that, comprise photoelectric signal collection module 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 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, voltage stabilizing diode D negative pole, 1 pin of photoelectric signal collection module MC connects, the resistance R3 other end and lead-out terminal K2, voltage stabilizing diode D positive pole, 2 pin of photoelectric signal collection module MC connect, 6 pin of photoelectric signal collection module MC are connected with resistance R1 one end, the resistance R1 other end is connected with positive source, 4 pin of photoelectric signal collection module MC 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 isolating switch auxiliary contact two lateral circuit in tested loop respectively, by photoelectric signal collection module MC to point, the supervision of closing circuit isolating switch auxiliary contact two ends potential change, judgement divides, whether the running status of closing circuit is correct, the break-make of the output control relay KA of photoelectric signal collection module MC, the auxiliary contact of relay K A is drawn, receive on lead-out terminal, for point, closing circuit state instruction and status alert, two monitoring circuits be respectively used to monitoring breaker point, closing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410342638.3A CN104297675B (en) | 2014-07-18 | 2014-07-18 | A kind of breaker point, combined floodgate total state monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410342638.3A CN104297675B (en) | 2014-07-18 | 2014-07-18 | A kind of breaker point, combined floodgate total state monitoring device |
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| CN104297675A true CN104297675A (en) | 2015-01-21 |
| CN104297675B CN104297675B (en) | 2017-10-03 |
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| CN201410342638.3A Active CN104297675B (en) | 2014-07-18 | 2014-07-18 | A kind of breaker point, combined floodgate total state monitoring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872844A (en) * | 2018-07-05 | 2018-11-23 | 石家庄国祥运输设备有限公司 | A kind of contactor state judging method |
| CN109633428A (en) * | 2018-12-14 | 2019-04-16 | 贵州电网有限责任公司 | A kind of high-voltage circuit-breaker switching on-off coil fault detector |
| CN110146807A (en) * | 2019-06-05 | 2019-08-20 | 厦门立林电气控制技术有限公司 | A kind of trip coil monitoring circuit and monitoring method |
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| CN110146807A (en) * | 2019-06-05 | 2019-08-20 | 厦门立林电气控制技术有限公司 | A kind of trip coil monitoring circuit and monitoring method |
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| Publication number | Publication date |
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| CN104297675B (en) | 2017-10-03 |
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Effective date of registration: 20180425 Address after: 114002 South victory road, Tiedong District, Anshan, Liaoning Province, No. 33 Co-patentee after: State Grid Corporation of China Patentee after: Anshan Power Supply Company, State Grid Liaoning Electric Power Co., Ltd. Co-patentee after: Liaoning Lanling easy Electric Engineering Co. Ltd. Address before: 100031 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Co-patentee before: Anshan Power Supply Company, State Grid Liaoning Electric Power Co., Ltd. Patentee before: State Grid Corporation of China Co-patentee before: Anshan Lanling Jidian Protection Co.,Ltd. |