CN102361352A - Change-over switch integration circuit for circuit breaker of intelligent converting station - Google Patents
Change-over switch integration circuit for circuit breaker of intelligent converting station Download PDFInfo
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- CN102361352A CN102361352A CN2011103260045A CN201110326004A CN102361352A CN 102361352 A CN102361352 A CN 102361352A CN 2011103260045 A CN2011103260045 A CN 2011103260045A CN 201110326004 A CN201110326004 A CN 201110326004A CN 102361352 A CN102361352 A CN 102361352A
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- monitoring backstage
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- combined floodgate
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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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Abstract
The invention discloses a change-over switch integration circuit for a circuit breaker of an intelligent converting station. The change-over switch integration circuit comprises a change-over switch which is connected with the input end of an intelligent terminal, wherein the intelligent terminal is connected with a circuit breaker in a primary mechanism through a logic judgment contact; the circuit breaker comprises a closing coil; the closing coil of the circuit breaker is connected with a closing control loop of a monitoring background I; the closing control loop of the monitoring background I comprises a closing logic judgment contact of the intelligent terminal under the control of the monitoring background; and a closing logic judgment contact of the intelligent terminal under the control of a monitoring background II is connected in parallel to the monitoring background I. The invention has the beneficial effects: the intelligent mechanism is integrated with the change-over switch of the circuit breaker of the primary mechanism, redundant functional devices are eliminated, multiple sets of monitoring backgrounds correspond to mechanism closing at the future development stage of the intelligent converting station simultaneously, and the change-over switch integration circuit has long-term development trend and extensive application space.
Description
Technical field
The present invention relates to a kind of change over switch and integrate circuit, relate in particular to a kind of intelligent substation circuit breaker change over switch and integrate circuit.
Background technology
In intelligent substation; Deciliter control loop to circuit breaker; Be respectively equipped with two cover distant places/on the spot, combined floodgate/tripping operation change over switch, the change over switch that a cover is derived and for the traditional secondary measure and control device of relay bungalow reservation, it is through being connected with intelligent terminal; Utilize the logic determines contact of intelligent terminal that circuit breaker is carried out deciliter control, i.e. the relay bungalow of conventional substation definition is with " distant place " change over switch; Another set of for directly acting on the change over switch of circuit breaker in the power distribution equipment district convergence control cabinet, i.e. the power distribution equipment district of conventional substation definition is with " on the spot " change over switch.Current situation about facing is:
1, along with technical development, intelligent terminal is transferred by relay bungalow and is arranged in the power distribution equipment district, and the cover distant place on it/on the spot, combined floodgate/tripping operation change over switch have lost relay bungalow " distant place " operation effect, only have " on the spot " operating function.Promptly form in theory; At the same area; With the change over switch that directly acts on circuit breaker in the convergence control cabinet; The power distribution equipment district that is the conventional substation definition carries out deciliter control with series model to circuit breaker with " on the spot " change over switch, and the situation that formation functional redundancy, hardware device repeat to be provided with is run counter to the integrated guideline of intelligent substation; And operation, maintainer be in the power distribution equipment district during Work in Place, need strictness in order, repetitive operation two cover change over switches, complex procedures causes the operating accident incidence to improve.
2, in the current intelligent substation; Circuit breaker in mechanism only is provided with a combination brake cable circle; And a combination brake cable circle needs a corresponding cover monitoring backstage; When the monitoring backstage was overlapped more than one, existing circuit breaker deciliter control loop just can't be realized mating to satisfy the situation of design requirement with the circuit breaker that only contains a combination brake cable circle overlapping the monitoring backstage more.
Summary of the invention
The object of the invention is exactly in order to address the above problem, and provides a kind of intelligent substation circuit breaker change over switch to integrate circuit, and it has practical, and convenient economical, development prospect is advantage widely.
To achieve these goals, the present invention adopts following technical scheme:
A kind of intelligent substation circuit breaker change over switch is integrated circuit; It comprises monitoring backstage, change over switch electric loop, intelligent terminal; Said intelligent terminal has through logic determines contact and circuit breaker in mechanism and is connected, and described circuit breaker is provided with a cover closing line circle, two cover switching windings; Described two cover switching windings are independent respectively to be connected with monitoring backstage I separating brake control loop, monitoring backstage II separating brake control loop II; Described breaker closing coil is connected with monitoring backstage I combined floodgate control loop; The combined floodgate logic determines contact I that comprises the intelligent terminal under this monitoring backstage control in the I combined floodgate control loop of described monitoring backstage; Described change over switch electric loop is connected with the intelligent terminal input; The monitoring backstage I combined floodgate control loop of the described combined floodgate logic determines contact I that comprises intelligent terminal is with to belong to monitoring backstage II combined floodgate control loop II parallelly connected, and said combined floodgate control loop II is connected in parallel on combined floodgate logic determines contact I two ends or is connected in parallel on the combined floodgate control loop of the monitoring backstage I that comprises combined floodgate logic determines contact I.
Described change over switch electric loop comprises one group of distant place/on the spot, combined floodgate/tripping operation change over switch; This group distant place/on the spot, combined floodgate/tripping operation change over switch comprise the switch on the spot that contact one end is connected with power circuit; The other end of a contact of switch is connected with the parallel circuits of forcing hand to run the contact, pass jointly with hand TRIP contact and is branch road I on the spot, and branch road I is connected with intelligent terminal; Comprise that also another contact of switch and same period hand closes the branch road II of contact series connection on the spot, said branch road II is connected with intelligent terminal; Also comprise the distant place switch that an end is connected with power circuit, the other end of a contact of distant place switch is connected with distant parallel circuits one end that closes contact, distant jumping contact; The distant contact of closing that is arranged in parallel circuits is connected and forces hand to be run jointly on the line branch road that closes contact and intelligent terminal, and the distant jumping contact that is arranged in parallel circuits is connected on the line branch road of hand TRIP contact and intelligent terminal.
Also be provided with the closing relay coil in the I combined floodgate control loop of described monitoring backstage, said closing relay coil is connected with the combined floodgate logic determines contact of this monitoring backstage control intelligent terminal down and is connected with circuit breaker input in mechanism.
The separating brake logic determines contact that comprises the intelligent terminal under this monitoring backstage control among described monitoring backstage I separating brake control loop, the monitoring backstage II separating brake control loop II respectively.
Be respectively equipped with the separating brake relay coil among said monitoring backstage I separating brake control loop, the monitoring backstage II separating brake control loop II; The separating brake logic determines contact of the intelligent terminal under said separating brake relay coil and the control of this monitoring backstage is connected.
A kind of intelligent substation circuit breaker change over switch is in addition integrated circuit; It comprises monitoring backstage, change over switch electric loop, intelligent terminal; Said intelligent terminal has through logic determines contact and circuit breaker in mechanism and is connected; Described circuit breaker is provided with two closing coils; Two closing coils of described circuit breaker are independently of one another and is connected with monitoring backstage I combined floodgate control loop, monitoring backstage II combined floodgate control loop A respectively, comprise the combined floodgate logic determines contact of the intelligent terminal of this monitoring backstage under controlling among the combined floodgate control loop A of described monitoring backstage I combined floodgate control loop, monitoring backstage II respectively.Described monitoring backstage I combined floodgate control loop, monitoring also are respectively equipped with the closing relay coil among the II combined floodgate control loop A of backstage, and said closing relay coil is connected with the combined floodgate logic determines contact of intelligent terminal under this monitoring backstage is controlled.Circuit breaker in the described mechanism is provided with two cover switching windings, and described two cover switching windings are independent respectively to be connected with monitoring backstage I separating brake control loop, monitoring backstage II separating brake control loop II.Be respectively equipped with the separating brake logic determines contact of the intelligent terminal under separating brake relay coil and the control of this monitoring backstage among said monitoring backstage I separating brake control loop, the monitoring backstage II separating brake control loop II; The separating brake logic determines contact of the intelligent terminal under said separating brake relay coil and the control of this monitoring backstage is connected.
In above-mentioned two kinds of situation, described monitoring backstage II is at least one.
Beneficial effect of the present invention:
(1) intelligent terminal and mechanism's circuit breaker change over switch are integrated; Cancel the redundancy feature device, reduced the device number of configured; Save screen cabinet arrangement space; Improve degree of integration, advanced the design of fusion fully of an intelligent terminal and a mechanism, the intelligentized primary equipment of realizing the intelligent substation final goal is provided actual solution.
(2) the integrated employing intelligent terminal of change over switch function is realized, the design of classical circuit board loop has guaranteed the safe and reliable of system.
(3) disposable the opening into Intelligent Terminal of change over switch action utilizes the GOOSE network to share the change over switch state, has the equipment of demand all can call for the change over switch state, promptly practice thrift the change over switch contact, again Guarantee Status in time, comprehensively shared.
(4) brand-new loop design can solve two covers monitoring backstage of recent stage of intelligent substation or monitoring backstage, the unmatched problem of a cover He Quan of mechanism (closing coil) of overlapping flexibly, reliably; Many cover monitoring backstage is through overall arrangement; Utilize the logic determines contact of the intelligent terminal under this monitoring backstage control to carry out control to the circuit breaker in the same mechanism; Through convenient, simple reconfiguration design; Can satisfy simultaneously intelligent substation developing stage at a specified future date and overlap the monitoring backstage more, close the corresponding situation of circle, long term growth trend and extensive use space are arranged in the intelligent substation design field with mechanism.
Description of drawings
Figure 1A: change over switch and intelligent terminal elementary diagram;
Figure 1B: another set of change over switch and intelligent terminal elementary diagram;
Fig. 1 C: monitoring backstage I combined floodgate control loop is connected fundamental diagram with monitoring backstage II combined floodgate control loop with mechanism's circuit breaker;
Fig. 2: two covers monitoring backstage, a cover He Quan of the mechanism solution sketch map that do not match;
Fig. 3: circle solution sketch map closes in two covers monitoring backstage, two cover mechanism.
Wherein, 1. intelligent terminal, 2. circuit breaker, 3. monitoring backstage I combined floodgate control loop, 4. monitoring backstage II combined floodgate control loop II; 5. change over switch electric loop, 6. hand TRIP contact is 7. forced hand to be run jointly and is closed the contact, and 8. the same period, hand closed the contact; 9. switch on the spot, 10. distant place switch, the 11. distant contacts of closing, 12. distant jumping contacts; 13. combined floodgate logic determines contact I, 14. monitoring backstage II combined floodgate control loop A, 15. monitoring backstage I separating brake control loops, 16. monitoring backstage II separating brake control loop II.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Figure 1A, Figure 1B are the change over switch that intelligent substation terminal 1 input connects, and are that Redundancy Design is considered, comprise a distant place/on the spot, combined floodgates/tripping operation change over switch two cover contacts, by independently monitoring the backstage it are controlled respectively.Described change over switch electric loop 5 comprises one group of distant place/on the spot, combined floodgate/tripping operation change over switch; This group distant place/on the spot, combined floodgate/tripping operation change over switch comprise the switch on the spot 9 that contact one end is connected with power circuit; The other end of 9 one contacts of switch is connected with the parallel circuits of forcing hand to run contact 7, pass jointly with hand TRIP contact 6 and is branch road I on the spot, and branch road I is connected with intelligent terminal 1; Comprise that also switch 9 another contacts and same period hand closes the branch road II of contact 8 series connection on the spot, said branch road II is connected with intelligent terminal 1; Also comprise the distant place switch 10 that an end is connected with power circuit, the other end of 10 1 contacts of distant place switch is connected with distant parallel circuits one end that closes contact 11, distant jumping contact 12; The distant contact 11 of closing that is arranged in parallel circuits is connected on the line branch road of forcing hand to be run jointly to close contact 7 and intelligent terminal 1, and the distant jumping contact 12 that is arranged in parallel circuits is connected on the line branch road of hand TRIP contact 6 and intelligent terminal 1.
Fig. 1 C monitoring backstage I combined floodgate control loop is connected fundamental diagram with monitoring backstage II combined floodgate control loop with mechanism's circuit breaker, shown in the figure: face two covers and monitor backstage, and overlap mechanism and close and enclose unmatched situation sketch map; The closing coil of the circuit breaker 2 among the figure in mechanism has only one.
Among Fig. 2; A kind of intelligent substation circuit breaker change over switch is integrated circuit; It comprises monitoring backstage, change over switch electric loop, intelligent terminal; Said intelligent terminal has through logic determines contact and circuit breaker in mechanism and is connected, and described circuit breaker is provided with a cover closing line circle, two cover switching windings; Described two cover switching windings are independent respectively to be connected with monitoring backstage I separating brake control loop, monitoring backstage II separating brake control loop II; Described breaker closing coil is connected with monitoring backstage I combined floodgate control loop; The combined floodgate logic determines contact I that comprises the intelligent terminal under this monitoring backstage control in the I combined floodgate control loop of described monitoring backstage; Described change over switch electric loop is connected with the intelligent terminal input; The monitoring backstage I combined floodgate control loop of the described combined floodgate logic determines contact I that comprises intelligent terminal is with to belong to monitoring backstage II combined floodgate control loop II parallelly connected, and said combined floodgate control loop II is connected in parallel on combined floodgate logic determines contact I two ends or is connected in parallel on the combined floodgate control loop of the monitoring backstage I that comprises combined floodgate logic determines contact I.Described monitoring backstage II is 1.
Described change over switch electric loop comprises one group of distant place/on the spot, combined floodgate/tripping operation change over switch; This group distant place/on the spot, combined floodgate/tripping operation change over switch comprise the switch on the spot that contact one end is connected with power circuit; The other end of a contact of switch is connected with the parallel circuits of forcing hand to run the contact, pass jointly with hand TRIP contact and is branch road I on the spot, and branch road I is connected with intelligent terminal; Comprise that also another contact of switch and same period hand closes the branch road II of contact series connection on the spot, said branch road II is connected with intelligent terminal; Also comprise the distant place switch that an end is connected with power circuit, the other end of a contact of distant place switch is connected with distant parallel circuits one end that closes contact, distant jumping contact; The distant contact of closing that is arranged in parallel circuits is connected and forces hand to be run jointly on the line branch road that closes contact and intelligent terminal, and the distant jumping contact that is arranged in parallel circuits is connected on the line branch road of hand TRIP contact and intelligent terminal.
Also be provided with the closing relay coil in the I combined floodgate control loop of described monitoring backstage, said closing relay coil is connected with the combined floodgate logic determines contact of this monitoring backstage control intelligent terminal down and is connected with circuit breaker input in mechanism.
The separating brake logic determines contact that comprises the intelligent terminal under this monitoring backstage control among described monitoring backstage I separating brake control loop, the monitoring backstage II separating brake control loop II respectively.
Be respectively equipped with the separating brake relay coil among said monitoring backstage I separating brake control loop, the monitoring backstage II separating brake control loop II; The separating brake logic determines contact of the intelligent terminal under said separating brake relay coil and the control of this monitoring backstage is connected.
Represent among Fig. 3: a kind of in addition intelligent substation circuit breaker change over switch is integrated circuit; It comprises monitoring backstage, change over switch electric loop 5, intelligent terminal 1; Said intelligent terminal 1 has through logic determines contact and circuit breaker 2 in mechanism and is connected; Described circuit breaker 2 is provided with two closing coils; Two closing coils of described circuit breaker are independently of one another and is connected with monitoring backstage I combined floodgate control loop 3, monitoring backstage II combined floodgate control loop A14 respectively, comprise the combined floodgate logic determines contact 13 of the intelligent terminal of this monitoring backstage under controlling among the combined floodgate control loop A14 of described monitoring backstage I combined floodgate control loop 3, monitoring backstage II respectively.Same described monitoring backstage II is 1.
Described monitoring backstage I combined floodgate control loop 3, monitoring also are respectively equipped with the closing relay coil among the backstage II combined floodgate control loop A 14, and said closing relay coil is connected with the combined floodgate logic determines contact 13 of intelligent terminal 1 under this monitoring backstage is controlled.
Circuit breaker in the described mechanism is provided with two cover switching windings, and described two cover switching windings are independent respectively to be connected with monitoring backstage I separating brake control loop 15, monitoring backstage II separating brake control loop II16.
Be respectively equipped with the separating brake logic determines contact of the intelligent terminal 1 under separating brake relay coil and the control of this monitoring backstage among said monitoring backstage I separating brake control loop 15, the monitoring backstage II separating brake control loop II16; The separating brake logic determines contact of the intelligent terminal 1 under said separating brake relay coil and the control of this monitoring backstage is connected.
Though the above-mentioned accompanying drawing specific embodiments of the invention that combines is described; But be not restriction to protection range of the present invention; One of ordinary skill in the art should be understood that; On the basis of technical scheme of the present invention, those skilled in the art need not pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (10)
1. an intelligent substation circuit breaker change over switch is integrated circuit; It comprises monitoring backstage, change over switch electric loop, intelligent terminal; Said intelligent terminal has through logic determines contact and circuit breaker in mechanism and is connected; Described circuit breaker is provided with a cover closing line circle, two cover switching windings; Described two cover switching windings are independent respectively to be connected with monitoring backstage I separating brake control loop, monitoring backstage II separating brake control loop II; Described breaker closing coil is connected with monitoring backstage I combined floodgate control loop; The combined floodgate logic determines contact I that comprises the intelligent terminal under this monitoring backstage control in the I combined floodgate control loop of described monitoring backstage; It is characterized in that; Described change over switch electric loop is connected with the intelligent terminal input; The monitoring backstage I combined floodgate control loop of the described combined floodgate logic determines contact I that comprises intelligent terminal is with to belong to monitoring backstage II combined floodgate control loop II parallelly connected, and said combined floodgate control loop II is connected in parallel on combined floodgate logic determines contact I two ends or is connected in parallel on the combined floodgate control loop of the monitoring backstage I that comprises combined floodgate logic determines contact I.
2. a kind of intelligent substation circuit breaker change over switch as claimed in claim 1 is integrated circuit; It is characterized in that; Described change over switch electric loop comprises one group of distant place/on the spot, combined floodgate/tripping operation change over switch; This group distant place/on the spot, combined floodgate/tripping operation change over switch comprise the switch on the spot that contact one end is connected with power circuit, on the spot the other end of a contact of switch and hand TRIP contact with force hand to run the parallel circuits that closes the contact jointly to connect and be branch road I, branch road I is connected with intelligent terminal; Comprise that also another contact of switch and same period hand closes the branch road II of contact series connection on the spot, said branch road II is connected with intelligent terminal; Also comprise the distant place switch that an end is connected with power circuit, the other end of a contact of distant place switch is connected with distant parallel circuits one end that closes contact, distant jumping contact; The distant contact of closing that is arranged in parallel circuits is connected and forces hand to be run jointly on the line branch road that closes contact and intelligent terminal, and the distant jumping contact that is arranged in parallel circuits is connected on the line branch road of hand TRIP contact and intelligent terminal.
3. a kind of intelligent substation circuit breaker change over switch as claimed in claim 1 is integrated circuit; It is characterized in that; Also be provided with the closing relay coil in the I combined floodgate control loop of described monitoring backstage, said closing relay coil is connected with the combined floodgate logic determines contact of this monitoring backstage control intelligent terminal down and is connected with circuit breaker input in mechanism.
4. a kind of intelligent substation circuit breaker change over switch as claimed in claim 1 is integrated circuit; It is characterized in that, comprise the separating brake logic determines contact of the intelligent terminal under this monitoring backstage control among described monitoring backstage I separating brake control loop, the monitoring backstage II separating brake control loop II respectively.
5. integrate circuit like claim 1 or 4 described a kind of intelligent substation circuit breaker change over switches, it is characterized in that, be respectively equipped with the separating brake relay coil among said monitoring backstage I separating brake control loop, the monitoring backstage II separating brake control loop II; The separating brake logic determines contact of the intelligent terminal under said separating brake relay coil and the control of this monitoring backstage is connected.
6. an intelligent substation circuit breaker change over switch is integrated circuit; It comprises monitoring backstage, change over switch electric loop, intelligent terminal; Said intelligent terminal has through logic determines contact and circuit breaker in mechanism and is connected; It is characterized in that; Described circuit breaker is provided with two closing coils, and two closing coils of described circuit breaker are independently of one another and is connected with monitoring backstage I combined floodgate control loop, monitoring backstage II combined floodgate control loop A respectively, comprises the combined floodgate logic determines contact of the intelligent terminal of this monitoring backstage under controlling among the combined floodgate control loop A of described monitoring backstage I combined floodgate control loop, monitoring backstage II respectively.
7. a kind of intelligent substation circuit breaker change over switch as claimed in claim 6 is integrated circuit; It is characterized in that; Described monitoring backstage I combined floodgate control loop, monitoring also are respectively equipped with the closing relay coil among the II combined floodgate control loop A of backstage, and said closing relay coil is connected with the combined floodgate logic determines contact of intelligent terminal under this monitoring backstage is controlled.
8. a kind of intelligent substation circuit breaker change over switch as claimed in claim 6 is integrated circuit; It is characterized in that; Circuit breaker in the described mechanism is provided with two cover switching windings, and described two cover switching windings are independent respectively to be connected with monitoring backstage I separating brake control loop, monitoring backstage II separating brake control loop II.
9. a kind of intelligent substation circuit breaker change over switch as claimed in claim 8 is integrated circuit; It is characterized in that, be respectively equipped with the separating brake logic determines contact of the intelligent terminal under separating brake relay coil and the control of this monitoring backstage among said monitoring backstage I separating brake control loop, the monitoring backstage II separating brake control loop II; The separating brake logic determines contact of the intelligent terminal under said separating brake relay coil and the control of this monitoring backstage is connected.
10. integrate circuit like claim 1 or 6 described a kind of intelligent substation circuit breaker change over switches, it is characterized in that described monitoring backstage II is at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103260045A CN102361352B (en) | 2011-10-24 | 2011-10-24 | Change-over switch integration circuit for circuit breaker of intelligent converting station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103260045A CN102361352B (en) | 2011-10-24 | 2011-10-24 | Change-over switch integration circuit for circuit breaker of intelligent converting station |
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| Publication Number | Publication Date |
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| CN102361352A true CN102361352A (en) | 2012-02-22 |
| CN102361352B CN102361352B (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103260045A Active CN102361352B (en) | 2011-10-24 | 2011-10-24 | Change-over switch integration circuit for circuit breaker of intelligent converting station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376758A (en) * | 2013-07-15 | 2013-10-30 | 福开尔（西安）电气有限公司 | Circuit capable of achieving double-main-breaker automatic alternate operation by utilizing latching relay |
| CN113872330A (en) * | 2021-11-05 | 2021-12-31 | 国网宁夏电力有限公司建设分公司 | Double-set intelligent terminal starting control loop of transformer substation circuit breaker |
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| CN101867227A (en) * | 2010-07-01 | 2010-10-20 | 唐山盾石电气有限责任公司 | Method and device for electrically controlling high voltage circuit breaker to switch on or switch off |
| CN201877814U (en) * | 2010-12-15 | 2011-06-22 | 中国神华能源股份有限公司 | Controller for circuit breaker |
| CN202333981U (en) * | 2011-10-24 | 2012-07-11 | 山东电力工程咨询院有限公司 | Change-over switch integration line for circuit breaker of intelligent transformer substation |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070242402A1 (en) * | 2002-02-25 | 2007-10-18 | General Electric Company | Circuit protection system |
| CN101867227A (en) * | 2010-07-01 | 2010-10-20 | 唐山盾石电气有限责任公司 | Method and device for electrically controlling high voltage circuit breaker to switch on or switch off |
| CN201877814U (en) * | 2010-12-15 | 2011-06-22 | 中国神华能源股份有限公司 | Controller for circuit breaker |
| CN202333981U (en) * | 2011-10-24 | 2012-07-11 | 山东电力工程咨询院有限公司 | Change-over switch integration line for circuit breaker of intelligent transformer substation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376758A (en) * | 2013-07-15 | 2013-10-30 | 福开尔（西安）电气有限公司 | Circuit capable of achieving double-main-breaker automatic alternate operation by utilizing latching relay |
| CN103376758B (en) * | 2013-07-15 | 2015-09-02 | 福开尔（西安）电气有限公司 | A kind of latching relay that adopts realizes two main disconnected automatic alternate run circuit |
| CN113872330A (en) * | 2021-11-05 | 2021-12-31 | 国网宁夏电力有限公司建设分公司 | Double-set intelligent terminal starting control loop of transformer substation circuit breaker |
| CN113872330B (en) * | 2021-11-05 | 2023-03-14 | 国网宁夏电力有限公司建设分公司 | Double-set intelligent terminal starting control loop of transformer substation circuit breaker |
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| CN102361352B (en) | 2013-10-30 |
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