CN103427487A - Control circuit of high-voltage circuit breaker - Google Patents
Control circuit of high-voltage circuit breaker Download PDFInfo
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- CN103427487A CN103427487A CN2013103083938A CN201310308393A CN103427487A CN 103427487 A CN103427487 A CN 103427487A CN 2013103083938 A CN2013103083938 A CN 2013103083938A CN 201310308393 A CN201310308393 A CN 201310308393A CN 103427487 A CN103427487 A CN 103427487A
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- circuit breaker
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Abstract
The invention discloses a control circuit of a high-voltage circuit breaker. Connection positions of auxiliary contacts DL of the circuit breaker are adjusted so as to enable the auxiliary contacts DL of the circuit breaker to be distributed in front of all elements, other components and parts and contacts are in series connection and distributed behind, a switch-on abnormal relay HYCJ, a trip abnormal relay TYCL and a loop resistor R are added in a protection operation plug, normally closed contacts of the switch-on abnormal relay HYCJ and the trip abnormal relay TYCL are serially connected to form 'control circuit abnormal' signals, and the signals can be transmitted to a monitoring system from a comprehensive substation automation system channel. The control circuit of the high-voltage circuit breaker achieves full work condition monitoring, ensures production personnel to initiatively eliminate hazards, enables people to find out latent defects in advance and timely eliminate the hazard, avoids unnecessary power failure and guarantees safe and stable operation of a power grid.
Description
Technical field
The present invention relates to a kind of primary cut-out, particularly a kind of control of high-voltage circuit breaker loop.
Background technology
Primary cut-out is as the visual plant of loading for connection, excision in transformer station, and 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 the divide-shut brake control loop, as shown in Figure 2.When control loop interruption, state abnormal, TWJ and HWJ relay cut off the power supply simultaneously, the TWJ of series connection and the conducting of HWJ auxiliary node, newspaper " control loop broken string " signal.
Control principle under the breaker closing state as shown in Figure 3, circuit breaker normal opened contact DL closure, the co-bit monitoring circuit is connected.If occur breakpoint in trip(ping) circuit, the normally closed auxiliary node closure of HWJ, send 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 can't monitor the switching-on mechanism home loop.If breakpoint appears in the inner closing circuit of breaker mechanism, as the press contact loose contact, can't recognize in time this type of equipment deficiency.When primary equipment generation transient fault, if there is latent defect in closing circuit, can't reclosing after circuit breaker trip, cause the permanent tripping operation of equipment, expansion accident scope, extend interruption duration, has a strong impact on the operation of grid equipment.
As shown in Figure 4, circuit breaker normally closed contact DL closure, jump the position monitoring circuit and connect control principle under the breaker open operation state, if occur breakpoint in closing circuit, the normally closed auxiliary node closure of TWJ, send 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 can't monitor the tripping mechanism home loop.If breakpoint appears in the in-house loop of circuit breaker trip, as the circuit breaker trip coil blows, now can't recognize in advance this type of equipment deficiency.When 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, cause unnecessary power failure like this, 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 in advance is potential can not realize 100% full operating condition monitoring.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, and a kind of various states that are conducive to monitor in the primary cut-out running are provided, 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, 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 circuit breaker auxiliary contact back, 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, increase the abnormal relay HYCJ that closes a floodgate in the protection operation plug-in unit of protective relaying device control loop, 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, from the comprehensive automation system of transformer substation passage, to be sent to supervisory control system.
Adopt control of high-voltage circuit breaker of the present invention 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 the control loop state; find in time potential risk, realize the full operating condition monitoring function of primary cut-out.
In sum, the present invention's following advantage compared to existing technology:
Control of high-voltage circuit breaker of the present invention loop, realized 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 the 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.
The accompanying drawing explanation
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.
When being the circuit breaker co-bit of prior art, Fig. 3 controls circuit theory figure.
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 invention loop.
Fig. 6 is the schematic diagram after protective relaying device of the present invention improves.
Fig. 7 is control of high-voltage circuit breaker circuit theory figure of the present invention.
Fig. 8 is the full operating condition monitoring circuit theory figure of primary cut-out of the present invention when co-bit.
Fig. 9 is the full operating condition monitoring circuit theory figure of primary cut-out of the present invention when dividing position.
Embodiment
Below in conjunction with embodiment, the present invention 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 circuit breaker auxiliary contact back, 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, increase the abnormal relay HYCJ that closes a floodgate in the protection operation plug-in unit of protective relaying device control loop, 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, from the comprehensive automation system of transformer substation passage, to be sent to supervisory control system.
Full operating condition monitoring loop under primary cut-out "on" position of the present invention as shown in Figure 8, normal opened contact DL2 closure, circuit breaker co-bit monitoring circuit is connected, if occur 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 breakpoint appears 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, send 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 the position monitoring circuit and is connected, if occur 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, the 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 the circuit breaker trip coil blows; the no longer excitation of abnormal relay TYCJ that now trips, its normally closed contact conducting, send 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, 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 circuit breaker auxiliary contact back, 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, increase the abnormal relay HYCJ that closes a floodgate in the protection operation plug-in unit of protective relaying device control loop, 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, from the comprehensive automation system of transformer substation passage, to be sent to supervisory control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310308393.8A CN103427487B (en) | 2013-07-22 | 2013-07-22 | Control circuit of high-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310308393.8A CN103427487B (en) | 2013-07-22 | 2013-07-22 | Control circuit of high-voltage circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN103427487A true CN103427487A (en) | 2013-12-04 |
| CN103427487B CN103427487B (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310308393.8A Active CN103427487B (en) | 2013-07-22 | 2013-07-22 | Control circuit of high-voltage circuit breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767282A (en) * | 2015-04-08 | 2015-07-08 | 杨策 | High-voltage automatic switch controller for three-phase power |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2645324Y (en) * | 2003-04-30 | 2004-09-29 | 广州市亿力电气科技有限公司 | High voltage breaker secondary circuit total operating mode monitoring arrangement |
| CN101246785A (en) * | 2008-03-21 | 2008-08-20 | 鞍山华夏电力电子设备有限公司 | Breaker synchronous controller and control method thereof |
| CN201298508Y (en) * | 2008-11-04 | 2009-08-26 | 谢俊 | Breaker control circuit |
| CN201877814U (en) * | 2010-12-15 | 2011-06-22 | 中国神华能源股份有限公司 | Controller for circuit breaker |
| JP2012253907A (en) * | 2011-06-02 | 2012-12-20 | Chugoku Electric Power Co Inc:The | Monitoring control system of power system |
-
2013
- 2013-07-22 CN CN201310308393.8A patent/CN103427487B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2645324Y (en) * | 2003-04-30 | 2004-09-29 | 广州市亿力电气科技有限公司 | High voltage breaker secondary circuit total operating mode monitoring arrangement |
| CN101246785A (en) * | 2008-03-21 | 2008-08-20 | 鞍山华夏电力电子设备有限公司 | Breaker synchronous controller and control method thereof |
| CN201298508Y (en) * | 2008-11-04 | 2009-08-26 | 谢俊 | Breaker control circuit |
| CN201877814U (en) * | 2010-12-15 | 2011-06-22 | 中国神华能源股份有限公司 | Controller for circuit breaker |
| JP2012253907A (en) * | 2011-06-02 | 2012-12-20 | Chugoku Electric Power Co Inc:The | Monitoring control system of power system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767282A (en) * | 2015-04-08 | 2015-07-08 | 杨策 | High-voltage automatic switch controller for three-phase power |
| CN104767282B (en) * | 2015-04-08 | 2017-03-15 | 杨策 | Three-phase power high-voltage automatic switch controller |
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| Publication number | Publication date |
|---|---|
| CN103427487B (en) | 2016-04-06 |
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