CN203813514U - Control loop for high-voltage circuit breaker - Google Patents
Control loop for high-voltage circuit breaker Download PDFInfo
- Publication number
- CN203813514U CN203813514U CN201320434597.1U CN201320434597U CN203813514U CN 203813514 U CN203813514 U CN 203813514U CN 201320434597 U CN201320434597 U CN 201320434597U CN 203813514 U CN203813514 U CN 203813514U
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- Prior art keywords
- circuit breaker
- loop
- auxiliary contact
- relay
- contact
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- 230000002159 abnormal effect Effects 0.000 claims description 33
- 230000007246 mechanism Effects 0.000 claims description 19
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 abstract description 18
- 230000007547 defect Effects 0.000 abstract description 6
- 230000005856 abnormality Effects 0.000 abstract 5
- 238000000034 method Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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- Keying Circuit Devices (AREA)
Abstract
The utility model discloses a control loop for a high-voltage circuit breaker, and the control loop adjusts the connection positions of auxiliary contacts DL of the circuit breaker, arranges the auxiliary contacts DL in the front of all elements, and enables other components and contacts to be connected in series and arranged at the back. The interior of a protection operation connector assembly is additionally provided with a switch-on abnormality relay HYCJ, a trip abnormality relay TYCJ, and a loop resistor R, wherein the normally closed contact of the switch-on abnormality relay HYCJ and the normally closed contact of the trip abnormality relay TYCJ are connected in series to form a control loop abnormality signal which can be transmitted to a monitoring system from a channel of an integrated automatic system of a substation. The control loop achieves the monitoring of all working conditions, enables the production personnel to become active in a process of eliminating a hidden trouble, finds out the latent defect of equipment in advance, timely eliminates the hidden trouble, avoids unnecessary power failures, and guarantees the safe and stable operation of a power grid.
Description
Technical field
The utility model relates to a kind of primary cut-out, particularly a kind of control of high-voltage circuit breaker loop.
Background technology
Primary cut-out as in transformer station for connect, excise load visual plant, its running status plays vital effect in power transformation operation.As shown in Figure 1, its monitoring circuit is used to indicate combined floodgate and the trip position state of circuit breaker to conventional control of high-voltage circuit breaker circuit theory figure, and the correctness in correct response circuit-breaker switching on-off loop.Circuit breaker is in operation and relies on the normally closed auxiliary node of control box introskip position relay TWJ, co-bit relay HWJ to monitor divide-shut brake control loop, as shown in Figure 2.When control loop interrupts, state occurs when abnormal, the power-off simultaneously of TWJ and HWJ relay, the TWJ of series connection and the conducting of HWJ auxiliary node, report " control loop broken string " signal.
Control principle under breaker closing state as shown in Figure 3, circuit breaker normal opened contact DL closure, co-bit monitoring circuit connect.If there is breakpoint in trip(ping) circuit, the normally closed auxiliary node closure of HWJ, sends out " control loop broken string " signal, can monitor the correctness of trip(ping) circuit.But circuit breaker normally closed contact DL opens, and closing circuit disconnects, and cannot monitor switching-on mechanism home loop.If breakpoint appears in the inner closing circuit of breaker mechanism, as press contact loose contact, cannot recognize in time this type of equipment deficiency.When primary equipment generation transient fault, if there is latent defect in closing circuit, cannot reclosing after circuit breaker trip, cause the permanent tripping operation of equipment, expansion accident scope, extends interruption duration, has a strong impact on the operation of grid equipment.
As shown in Figure 4, circuit breaker normally closed contact DL closure, jumps position monitoring circuit and connects control principle under breaker open operation state, if there is breakpoint in closing circuit, the normally closed auxiliary node closure of TWJ, sends out " control loop broken string " signal, can monitor the correctness of closing circuit.But circuit breaker normal opened contact DL opens, and trip(ping) circuit disconnects, and cannot monitor tripping mechanism home loop.If breakpoint appears in the in-house loop of circuit breaker trip, as circuit breaker trip coil blows, now cannot recognize in advance this type of equipment deficiency.In the time that the circuit breaker that closes starts power transmission, if there is latent defect in brake division loop of circuit breaker, report " control loop broken string " signal at once, the processing that must have a power failure immediately, causes unnecessary power failure like this, has postponed electric power feeding time.
From above analysis situation, conventional breaker control circuit only has 50% monitoring range, and the potential safety hazard that perception is in advance potential can not realize 100% full operating condition monitoring.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art part, and provide a kind of various states that are conducive to monitor in primary cut-out running, find in advance latent defect, facilitate the control of high-voltage circuit breaker loop of the timely abatement apparatus defect of maintainer.
A kind of control of high-voltage circuit breaker loop, include circuit breaker operation mechanism loop and protective relaying device control loop, it is characterized in that: described circuit breaker operation mechanism loop includes the first circuit breaker auxiliary contact DL1, the second circuit breaker auxiliary contact DL2, the 3rd circuit breaker auxiliary contact DL3, the 4th circuit breaker auxiliary contact DL4, abnormal relay HYCJ closes a floodgate, abnormal relay TYCJ and loop resistance R trip, the first circuit breaker auxiliary contact in described circuit breaker operation mechanism loop draws and is connected on FTJ anti-trip relay auxiliary contact and LR in loop and switches between handle contact, HYJ closing pressure locking contact, HQ breaker closing coil, FTJ anti-trip relay auxiliary contact is serially connected and is arranged in after the first circuit breaker auxiliary contact DL1, draw the 3rd circuit breaker auxiliary contact DL3 that connects opposite state is attempted by between the first circuit breaker auxiliary contact DL1 and FTJ anti-trip relay auxiliary contact simultaneously, the second circuit breaker auxiliary contact DL2 draws and is connected on TQ circuit breaker trip coil and LR in loop and switches between handle contact, TQ circuit breaker trip coil, TYJ tripping operation pressure atresia contact is serially connected and is arranged in after the second circuit breaker auxiliary contact DL2, draw the 4th circuit breaker auxiliary contact DL4 that connects opposite state is attempted by between the second circuit breaker auxiliary contact DL2 and TQ circuit breaker trip coil simultaneously, in the protection operation plug-in unit of protective relaying device control loop, increase the abnormal relay HYCJ that closes a floodgate, abnormal relay TYCJ trips, loop resistance R, the abnormal relay HYCJ that closes a floodgate is connected in series respectively the 3rd of rear and circuit breaker operation mechanism with the abnormal relay TYCJ of tripping operation with loop resistance R, the 4th circuit breaker auxiliary contact connects, and the abnormal relay HYCJ that will close a floodgate, the abnormal relay TYCJ normally closed contact serial connection that trips forms control loop abnormal signal, to be sent to supervisory control system from comprehensive automation system of transformer substation passage.
Adopt control of high-voltage circuit breaker of the present utility model loop; circuit breaker operation mechanism control loop and protective device control loop match; can realize " control loop broken string " and " control loop is abnormal " function for monitoring simultaneously; thereby make primary cut-out no matter operate in what state; all can in real time, accurately monitor control loop state; find in time potential risk, realize the full operating condition monitoring function of primary cut-out.
In sum, the utility model following advantage compared to existing technology:
Control of high-voltage circuit breaker of the present utility model loop, realize the full operating condition monitoring in control of high-voltage circuit breaker loop, guarantee that producers transfer to initiatively from passive in hidden danger elimination process, shift to an earlier date discovering device latent defect, remove a hidden danger in time, avoid causing unnecessary power failure, ensure power network safety operation.The improvement technology of this project research, can be widely used in the design and installation of capital construction, technology innovation project mesohigh breaker control circuit.
Brief description of the drawings
Fig. 1 is the control of high-voltage circuit breaker circuit theory figure of prior art.
Fig. 2 is the control loop broken string key wiring diagram of prior art.
Fig. 3 controls circuit theory figure while being the circuit breaker co-bit of prior art.
Fig. 4 is that the circuit breaker of prior art is controlled circuit theory figure while dividing.
Fig. 5 is the schematic diagram in circuit breaker operation mechanism of the present utility model loop.
Fig. 6 is the schematic diagram after protective relaying device of the present utility model improves.
Fig. 7 is control of high-voltage circuit breaker circuit theory figure of the present utility model.
Fig. 8 is the full operating condition monitoring circuit theory figure of primary cut-out of the present utility model in the time of co-bit.
Fig. 9 is the full operating condition monitoring circuit theory figure of primary cut-out of the present utility model in the time dividing position.
Embodiment
Below in conjunction with embodiment, the utility model is described in more detail.
Embodiment 1
A kind of control of high-voltage circuit breaker loop, include circuit breaker operation mechanism loop and protective relaying device control loop, described circuit breaker operation mechanism loop includes the first circuit breaker auxiliary contact and the second circuit breaker auxiliary contact and corresponding components and parts, it is characterized in that: first in described circuit breaker operation mechanism loop, the second circuit breaker auxiliary contact draws and is connected in loop before all components and parts, other components and parts and other contact are serially connected and are arranged in after circuit breaker auxiliary contact, also draw simultaneously and connect the 3rd of opposite state, the 4th liang of circuit breaker auxiliary contact is attempted by first, between second liang of circuit breaker auxiliary contact and other contact, in the protection operation plug-in unit of protective relaying device control loop, increase the abnormal relay HYCJ that closes a floodgate, abnormal relay TYCJ trips, loop resistance R, the abnormal relay HYCJ that closes a floodgate is connected in series respectively the 3rd of rear and circuit breaker operation mechanism with the abnormal relay TYCJ of tripping operation with loop resistance R, the 4th circuit breaker auxiliary contact connects, and the abnormal relay HYCJ that will close a floodgate, the abnormal relay TYCJ normally closed contact serial connection that trips forms " control loop is abnormal " signal, to be sent to supervisory control system from comprehensive automation system of transformer substation passage.
Full operating condition monitoring loop under the utility model primary cut-out "on" position as shown in Figure 8, normal opened contact DL2 closure, circuit breaker co-bit monitoring circuit is connected, if there is breakpoint in trip(ping) circuit, the normally closed auxiliary node closure of HWJ concurrent " control loop broken string " signal, can monitor the integrality of trip(ping) circuit.Although normally closed contact DL1 opens; closing circuit of circuit breaker disconnects; but normal opened contact DL3 closure in the monitoring circuit after improving; the abnormal loop of closing a floodgate is connected; if there is breakpoint in the inner closing circuit of breaker mechanism; the no longer excitation of abnormal relay HYCJ of now closing a floodgate, its normally closed contact conducting, sends out " control loop is abnormal " signal.
Full operating condition monitoring loop under primary cut-out separating brake state as shown in Figure 9, normally closed contact DL1 closure, circuit breaker is jumped position monitoring circuit and is connected, if there is breakpoint in closing circuit, the normally closed node closure of TWJ concurrent " control loop broken string " signal, can monitor the integrality of closing circuit.Although normal opened contact DL2 opens, circuit breaker trip loop disconnects.But DL4 junction closure in the monitoring circuit after improving, the abnormal loop of tripping is connected, if breakpoint appears in the inner trip(ping) circuit of breaker mechanism; as circuit breaker trip coil blows; the no longer excitation of abnormal relay TYCJ that now trips, its normally closed contact conducting, sends out " control loop is abnormal " signal.
It is same as the prior art that the present embodiment is not stated part.
Claims (1)
1. a control of high-voltage circuit breaker loop, include circuit breaker operation mechanism loop and protective relaying device control loop, it is characterized in that: described circuit breaker operation mechanism loop includes the first circuit breaker auxiliary contact DL1, the second circuit breaker auxiliary contact DL2, the 3rd circuit breaker auxiliary contact DL3, the 4th circuit breaker auxiliary contact DL4, abnormal relay HYCJ closes a floodgate, abnormal relay TYCJ and loop resistance R trip, the first circuit breaker auxiliary contact in described circuit breaker operation mechanism loop draws and is connected on FTJ anti-trip relay auxiliary contact and LR in loop and switches between handle contact, HYJ closing pressure locking contact, HQ breaker closing coil, FTJ anti-trip relay auxiliary contact is serially connected and is arranged in after the first circuit breaker auxiliary contact DL1, draw the 3rd circuit breaker auxiliary contact DL3 that connects opposite state is attempted by between the first circuit breaker auxiliary contact DL1 and FTJ anti-trip relay auxiliary contact simultaneously, the second circuit breaker auxiliary contact DL2 draws and is connected on TQ circuit breaker trip coil and LR in loop and switches between handle contact, TQ circuit breaker trip coil, TYJ tripping operation pressure atresia contact is serially connected and is arranged in after the second circuit breaker auxiliary contact DL2, draw the 4th circuit breaker auxiliary contact DL4 that connects opposite state is attempted by between the second circuit breaker auxiliary contact DL2 and TQ circuit breaker trip coil simultaneously, in the protection operation plug-in unit of protective relaying device control loop, increase the abnormal relay HYCJ that closes a floodgate, abnormal relay TYCJ trips, loop resistance R, the abnormal relay HYCJ that closes a floodgate is connected in series respectively the 3rd of rear and circuit breaker operation mechanism with the abnormal relay TYCJ of tripping operation with loop resistance R, the 4th circuit breaker auxiliary contact connects, and the abnormal relay HYCJ that will close a floodgate, the abnormal relay TYCJ normally closed contact serial connection that trips forms control loop abnormal signal, to be sent to supervisory control system from comprehensive automation system of transformer substation passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320434597.1U CN203813514U (en) | 2013-07-22 | 2013-07-22 | Control loop for high-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320434597.1U CN203813514U (en) | 2013-07-22 | 2013-07-22 | Control loop for high-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203813514U true CN203813514U (en) | 2014-09-03 |
Family
ID=51452222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320434597.1U Expired - Lifetime CN203813514U (en) | 2013-07-22 | 2013-07-22 | Control loop for high-voltage circuit breaker |
Country Status (1)
| Country | Link |
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| CN (1) | CN203813514U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104821557A (en) * | 2015-04-23 | 2015-08-05 | 中国能源建设集团江苏省电力设计院有限公司 | Control loop of breaker operation box |
| CN109149527A (en) * | 2017-06-16 | 2019-01-04 | 中国石油天然气股份有限公司 | The method of the control loop failure of the control circuit and detection breaker of breaker |
| CN111585255A (en) * | 2020-04-28 | 2020-08-25 | 广东电网有限责任公司揭阳供电局 | Trip monitoring loop |
| CN112653091A (en) * | 2020-12-14 | 2021-04-13 | 河南平高电气股份有限公司 | Circuit breaker locking control circuit |
-
2013
- 2013-07-22 CN CN201320434597.1U patent/CN203813514U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104821557A (en) * | 2015-04-23 | 2015-08-05 | 中国能源建设集团江苏省电力设计院有限公司 | Control loop of breaker operation box |
| CN109149527A (en) * | 2017-06-16 | 2019-01-04 | 中国石油天然气股份有限公司 | The method of the control loop failure of the control circuit and detection breaker of breaker |
| CN109149527B (en) * | 2017-06-16 | 2024-01-30 | 中国石油天然气股份有限公司 | Circuit breaker control circuit and method for detecting faults of circuit breaker control loop |
| CN111585255A (en) * | 2020-04-28 | 2020-08-25 | 广东电网有限责任公司揭阳供电局 | Trip monitoring loop |
| CN111585255B (en) * | 2020-04-28 | 2022-02-01 | 广东电网有限责任公司揭阳供电局 | Trip monitoring loop |
| CN112653091A (en) * | 2020-12-14 | 2021-04-13 | 河南平高电气股份有限公司 | Circuit breaker locking control circuit |
| CN112653091B (en) * | 2020-12-14 | 2024-03-22 | 河南平高电气股份有限公司 | Locking control loop of circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140903 Effective date of abandoning: 20160406 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140903 Effective date of abandoning: 20160406 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |