CN104821557B - A kind of control loop of breaker operation cabinet - Google Patents
A kind of control loop of breaker operation cabinet Download PDFInfo
- Publication number
- CN104821557B CN104821557B CN201510198299.0A CN201510198299A CN104821557B CN 104821557 B CN104821557 B CN 104821557B CN 201510198299 A CN201510198299 A CN 201510198299A CN 104821557 B CN104821557 B CN 104821557B
- Authority
- CN
- China
- Prior art keywords
- loop
- trip
- hand
- relay
- jump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
Landscapes
- Keying Circuit Devices (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of control loop of breaker operation cabinet, belong to technical field of relay protection.It includes operation power, jumps position monitoring circuit, holding loop of closing a floodgate, reclosure loop reform, anti-jump loop, hand conjunction loop, first group of breaking coil loop, second group of breaking coil loop, power supply switching circuit, power monitor circuit, dc source, reclosing pressure atresia loop, closing pressure locked loop, tripping operation pressure atresia road, air pressure deficiency locked loop.The present invention realizes hand trip(ping) signal and trip protection signal and keeps loop by the tripping operation of breaker operation cabinet; meet hand trip(ping) signal and trip protection signal self-sustaining can be required; trip protection signal is without the switching of a distant place in circuit breaker mechanism case/on the spot switch simultaneously, meet protective number by a distant place/switch on the spot switch control requirement.
Description
Technical field
The present invention relates to a kind of control loop of breaker operation cabinet, belong to technical field of relay protection.
Background technology
Breaker operation cabinet is the control device for realizing secondary circuit in power system to primary circuit, i.e. low-voltage equipment pair
The power equipment that the control of high-tension apparatus is used.Breaker operation cabinet can be monitored to breaker closing loop, its
The acceptable hand trip(ping) signal in breaking coil loop and trip protection signal.
Breaker is accessed in traditional control box control loop, after hand trip(ping) signal is in parallel with trip protection signal to jump
Lock loop.Therefore, two kinds of signals all can be by a distant place in circuit breaker mechanism case/switching switch control on the spot, but this does not meet electric power
Professional standard《Thermal power plant, electric substation design of secondary wiring technical specification DL/T 5136-2012》The 5.1.14 articles provision is said
It is bright（Continue to use《DL/T 5136-2001》The 7.5.11 articles）：Protective number is not controlled by the switching switch of a distant place/on the spot, and protective number is straight
Accessing forceful electric power loop can improve functional reliability, and can simplify I/O amounts.In order to meet this requirement, in practical operation, breaker
Control box occurs in that two kinds of control modes：The first, circuit breaker trip loop is directly accessed by protective number, without breaker machine
The switching switch of a distant place in structure case/on the spot, accesses disconnected again behind the tripping operation holding loop that hand trip(ping) signal passes through breaker operation cabinet
Road device trip(ping) circuit, by the switching of a distant place in circuit breaker mechanism case/on the spot switch；Second, hand trip(ping) signal is directly connect
Enter circuit breaker trip loop, by the switching of a distant place in circuit breaker mechanism case/on the spot switch, protective number is by breaker operation cabinet
Tripping operation accesses circuit breaker trip loop again after keeping loop, without the switching of a distant place in circuit breaker mechanism case/on the spot switch.At this
In two kinds of control modes, the tripping operation that hand trip(ping) signal and protection exit can not be simultaneously on access operation casees keeps loop, this
National standard is not met《Relay protection and automatic safety device technical regulation GB/T 14285-2006》The 4.1.16 articles requirement：
Tripping operation outlet should be able to self-sustaining, until breaker disconnects, self-sustaining preferably realized by the operation circuit of breaker.
In a word, existing breaker operation cabinet cannot realize both having met protective number and not controlled by the switching switch of a distant place/on the spot
System, meets hand trip(ping) signal and trip protection signal self-sustaining can be required again.
The content of the invention
For not enough present on prior art, returned it is an object of the invention to provide a kind of control of breaker operation cabinet
Road, realizes that hand trip(ping) signal and trip protection signal all keep loop by the tripping operation of breaker operation cabinet, meets and jumps manually
Lock signal and trip protection signal self-sustaining can be required, while trip protection signal is without remote in circuit breaker mechanism case
The switching switch of side/on the spot, meet protective number by a distant place/switch on the spot switch control requirement.
The present invention is adopted the following technical scheme that：A kind of control loop of breaker operation cabinet, it is characterised in that including operation
Power supply, jump position monitoring circuit, holding loop of closing a floodgate, reclosure loop reform, anti-jump loop, hand close loop, first group of breaking coil and return
Road, second group of breaking coil loop, power supply switching circuit, power monitor circuit, dc source, reclosing pressure atresia loop,
Closing pressure locked loop, tripping operation pressure atresia road, air pressure deficiency locked loop；The operation power includes first group of operation electricity
Source, second group of operation power, jump position monitoring circuit, the combined floodgate keep loop, the reclosure loop reform, the anti-rebound
Road, the hand close loop, first group of breaking coil loop and are connected with first group of operation power, described second group
Breaking coil loop is connected with second group of operation power；The power supply switching circuit and the power monitor circuit are used for
Realize the switching and monitoring between first group of operation power and second group of operation power；Jump position monitoring circuit is used to realize supervising
It is whether normal depending on closing circuit working condition, and judge circuit breaker trip position；The reclosure loop reform is used to realize to open circuit
Device sends reclosing instruction；The anti-jump loop is prevented after manually or automatically device closes a floodgate for realization, operation-control switch
Non- involution or controlling switch contact, automatics contact are blocked, and protection act occur makes circuit breaker trip and occur multiple
The situation of " jump-close "；The hand closes loop to be used to realize that sending closing by hand to breaker instructs.
Preferably, jump position monitoring circuit and jump position relay TWJ1, TWJ2, TWJ3, indicator lamp L1 by three and be composed in series；Close
Lock keeps loop by normal opened contact, the normally closed contact of tripping operation guard relay TBJV, the holding of closing a floodgate of combined floodgate guard relay HBJ
Relay HBJ, a distant place/switch switch, normally closed contact DL and closing coil HC composition on the spot；Anti-jump loop keeps relay by tripping operation
Device TBJV, the normal opened contact for jumping position guard relay TBJ11, TBJ12, TBJ21, TBJ22, TBJV are constituted；Hand closes loop by hand
Signal contact, hand conjunction control relay SHKKJ, hand is closed to jump control relay STKKJ and be composed in series；Close a floodgate and keep loop and hand to close
It is made up of the normally closed contact of three diode D2, D3, D4, closing pressure relay HTJ between loop.
Preferably, first group of breaking coil loop includes that hand trip(ping) loop, hand trip(ping) keep loop, trip protection to return
Road, trip protection keep loop, close position monitoring circuit；Signal contact, hand are jumped by hand and jumps relay STJ, hand in hand trip(ping) loop
Control relay SHKKJ, hand jump control relay STKKJ is closed to be composed in series；Hand trip(ping) keeps loop to keep relay by tripping operation
The normal opened contact of device TBJ11, tripping operation guard relay TBJ11, normally closed contact, a distant place/cut on the spot of tripping operation pressure switch TYJ
Change switch, normal opened contact, jump circle TQ compositions；Trip protection loop and trip protection keep loop by trip protection signal contact,
Normally closed contact, the normal opened contact of trip protection relay TBJ12, the trip protection relay of tripping operation pressure switch TYJ
TBJ12, normal opened contact, jump circle TQ are constituted；Close position monitoring circuit and close position relay HWJ1, HWJ2, HWJ3, indicator lamp by three
L2 is composed in series；Hand trip(ping) signal is in parallel by being carried out after the normal open switch of circuit breaker mechanism case with trip protection signal, then
Connected with the circle TQ that jumps.
Preferably, second group of breaking coil loop include operation power, close position monitoring circuit, hand trip(ping) keep loop,
Hand trip(ping) loop, trip protection keep loop, trip protection loop；Close position monitoring circuit by three close position relay HWJ4,
HWJ5, HWJ6, indicator lamp L2 are composed in series；Hand trip(ping) loop and hand trip(ping) keep loop to be connect by STJ relay normally opens
Normally closed contact, the normal opened contact of trip protection relay TBJ21, the trip protection relay of point, tripping operation pressure switch TYJ
TBJ21, a distant place/switch switch, normal opened contact on the spot, jump circle TQ compositions；Trip protection loop and trip protection keep loop by
Trip protection signal contact, the normally closed contact of tripping operation pressure switch TYJ, the normal opened contact of trip protection relay TBJ22, jump
Lock protective relay TBJ22, normal opened contact, jump circle TQ are constituted；Hand trip(ping) signal is with trip protection signal by breaker machine
It is in parallel after the normal open switch of structure case, then connected with the circle TQ that jumps.
The beneficial effect that the present invention is reached：（1）Protective number is met by a distant place in circuit breaker mechanism case/switch on the spot
Switch control, but hand trip(ping) signal receives the Industry code requirements of a distant place in circuit breaker mechanism case/switching switch control on the spot, carries
The functional reliability of breaker high, and can simplify I/O and measure；（2）Hand trip(ping) signal and trip protection signal all access open circuit
Device control box trip(ping) circuit, to meet and keep trip signal by the operation circuit of breaker until the country that breaker disconnects marks
Alignment request, reduces the generation of breaker failure failure, improves the functional reliability of breaker.
Brief description of the drawings
Fig. 1 is one of theory structure circuit diagram of the invention.
Fig. 2 is the two of theory structure circuit diagram of the invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating the present invention
Technical scheme, and can not be limited the scope of the invention with this.
If Fig. 1 and Fig. 2 is theory structure circuit diagram of the invention, the present invention is adopted the following technical scheme that：A kind of breaker
The control loop of control box, it is characterised in that including operation power, jump position monitoring circuit, combined floodgate holding loop, reclosing time
Road, anti-jump loop, hand close loop, first group of breaking coil loop, second group of breaking coil loop, power supply switching circuit, power supply
Monitoring circuit, dc source, reclosing pressure atresia loop, closing pressure locked loop, tripping operation pressure atresia road, air pressure deficiency
Locked loop；Operation power include first group of operation power, second group of operation power, jump position monitoring circuit, close a floodgate keep loop,
Reclosure loop reform, anti-jump loop, hand close loop, first group of breaking coil loop and are connected with first group of operation power, and second
Group breaking coil loop is connected with second group of operation power；Power supply switching circuit and power monitor circuit are used to realize first group
Switching and monitoring between operation power and second group of operation power；Jumping position monitoring circuit is used to realize monitoring closing circuit work
Whether state is normal, and judges circuit breaker trip position；Reclosure loop reform is used to realize that sending reclosing to breaker instructs；It is anti-
Rebound road is prevented after manually or automatically device closes a floodgate for realization, the non-involution of operation-control switch or controlling switch contact, from
Dynamic device contact is blocked, and protection act occur makes circuit breaker trip and the situation of multiple " jump-close " occurs；Hand closes loop to be used for
Realize that sending closing by hand to breaker instructs.
Preferably, jump position monitoring circuit and jump position relay TWJ1, TWJ2, TWJ3, indicator lamp L1 by three and be composed in series；Close
Lock keeps loop by normal opened contact, the normally closed contact of tripping operation guard relay TBJV, the holding of closing a floodgate of combined floodgate guard relay HBJ
Relay HBJ, a distant place/switch switch, normally closed contact DL and closing coil HC composition on the spot；Anti-jump loop keeps relay by tripping operation
Device TBJV, the normal opened contact for jumping position guard relay TBJ11, TBJ12, TBJ21, TBJ22, TBJV are constituted；Hand closes loop by hand
Signal contact, hand conjunction control relay SHKKJ, hand is closed to jump control relay STKKJ and be composed in series；Close a floodgate and keep loop and hand to close
It is made up of the normally closed contact of three diode D2, D3, D4, closing pressure relay HTJ between loop.
Preferably, first group of breaking coil loop includes that hand trip(ping) loop, hand trip(ping) keep loop, trip protection to return
Road, trip protection keep loop, close position monitoring circuit；Signal contact, hand are jumped by hand and jumps relay STJ, hand in hand trip(ping) loop
Control relay SHKKJ, hand jump control relay STKKJ is closed to be composed in series；Hand trip(ping) keeps loop to keep relay by tripping operation
The normal opened contact of device TBJ11, tripping operation guard relay TBJ11, normally closed contact, a distant place/cut on the spot of tripping operation pressure switch TYJ
Change switch, normal opened contact, jump circle TQ compositions；Trip protection loop and trip protection keep loop by trip protection signal contact,
Normally closed contact, the normal opened contact of trip protection relay TBJ12, the trip protection relay of tripping operation pressure switch TYJ
TBJ12, normal opened contact, jump circle TQ are constituted；Close position monitoring circuit and close position relay HWJ1, HWJ2, HWJ3, indicator lamp by three
L2 is composed in series；Hand trip(ping) signal is in parallel by being carried out after the normal open switch of circuit breaker mechanism case with trip protection signal, then
Connected with the circle TQ that jumps.
Preferably, second group of breaking coil loop include operation power, close position monitoring circuit, hand trip(ping) keep loop,
Hand trip(ping) loop, trip protection keep loop, trip protection loop；Close position monitoring circuit by three close position relay HWJ4,
HWJ5, HWJ6, indicator lamp L2 are composed in series；Hand trip(ping) loop and hand trip(ping) keep loop to be connect by STJ relay normally opens
Normally closed contact, the normal opened contact of trip protection relay TBJ21, the trip protection relay of point, tripping operation pressure switch TYJ
TBJ21, a distant place/switch switch, normal opened contact on the spot, jump circle TQ compositions；Trip protection loop and trip protection keep loop by
Trip protection signal contact, the normally closed contact of tripping operation pressure switch TYJ, the normal opened contact of trip protection relay TBJ22, jump
Lock protective relay TBJ22, normal opened contact, jump circle TQ are constituted；Hand trip(ping) signal is with trip protection signal by breaker machine
It is in parallel after the normal open switch of structure case, then connected with the circle TQ that jumps.
Inventive point of the invention is：Hand trip(ping) signal is accessed again after the tripping operation of breaker operation cabinet keeps loop
Circuit breaker trip loop, by the switching of a distant place in circuit breaker mechanism case/on the spot switch, and by a distant place in circuit breaker mechanism case/just
Ground switching switch control；Trip protection signal accesses circuit breaker trip and returns again after the tripping operation of breaker operation cabinet keeps loop
Road, without the switching of a distant place in circuit breaker mechanism case/on the spot switch, not by the switching switch of a distant place in circuit breaker mechanism case/on the spot
Control.
Operation principle of the invention：（1）When breaker is in open position, the normally closed auxiliary contact closure of breaker, TWJ1,
TWJ2, TWJ3 are acted, and send out corresponding contact to protection and signal circuit, and indicator lamp L1 is bright；If when hand conjunction or automatic reclosing,
The HBJ actuatings of relay simultaneously pass through itself contact self-sustaining, and until breaker closes, switch auxiliary contact disconnects, now, SHKKJ
The actuating of relay and magnetic holding, STKKJ relay involutions；（2）When breaker is in closing position, if hand trip(ping) signal contact
Triggering, the STJ actuatings of relay, SHKKJ relay involutions, the STKKJ actuatings of relay and magnetic keep, and are not sent out in tripping operation pressure signal
In the case of going out, the normally closed contact of TYJ relays is failure to actuate, the now TBJ11 actuatings of relay and by its contact self-sustaining, even if
Hand trip(ping) blackout, the contact of TBJ11 relays can make hand jump signal self-sustaining, and hand jumps signal by a distant place/cut on the spot
Change switch, breaker actuation；（3）When breaker is in closing position, breaker normally opened auxiliary contact closure, HWJ1, HWJ2,
HWJ3 is acted, and sends out corresponding contact to protection and signal circuit, and indicator lamp L2 is bright；If trip protection signal contact is triggered,
The TBJ12 actuatings of relay and by its contact self-sustaining, without a distant place/on the spot switching switch, breaker actuation.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, on the premise of the technology of the present invention principle is not departed from, some improvement and deformation can also be made, these improve and deform
Also should be regarded as protection scope of the present invention.
Claims (3)
1. a kind of control loop of breaker operation cabinet, it is characterised in that including operation power, jump position monitoring circuit, close a floodgate and protect
Hold loop, reclosure loop reform, anti-jump loop, hand conjunction loop, first group of breaking coil loop, second group of breaking coil loop, electricity
Source switching circuit, power monitor circuit, dc source, reclosing pressure atresia loop, closing pressure locked loop, tripping operation pressure
Locking road, air pressure deficiency locked loop；The operation power includes first group of operation power, second group of operation power, the jump
Position monitoring circuit, the combined floodgate keep loop, the reclosure loop reform, the anti-jump loop, the hand to close loop, described first
Group breaking coil loop is connected with first group of operation power, second group of breaking coil loop with described second group
Operation power is connected；The power supply switching circuit and the power monitor circuit are used to realize first group of operation power and second
Switching and monitoring between group operation power；Whether jump position monitoring circuit is used to just to realize monitoring closing circuit working condition
Often, and circuit breaker trip position is judged；The reclosure loop reform is used to realize that sending reclosing to breaker instructs；It is described anti-jump
Loop is prevented after manually or automatically device closes a floodgate for realization, the non-involution of operation-control switch or controlling switch contact, automatic
Device contact is blocked, and protection act occur makes circuit breaker trip and the situation of multiple " jump-close " occurs；The hand closes loop and uses
Closing by hand is sent in realization to breaker to instruct；Jump position monitoring circuit by three jump position relay TWJ1, TWJ2,
TWJ3, indicator lamp L1 are composed in series；Normal opened contact, the tripping operation holding for keeping loop by combined floodgate guard relay HBJ of closing a floodgate
The normally closed contact of relay TBJV, combined floodgate guard relay HBJ, a distant place/switch switch, normally closed contact DL and closing coil on the spot
HC is constituted；The anti-jump loop by tripping operation guard relay TBJV, jump position guard relay TBJ11, TBJ12, TBJ21,
The normal opened contact of TBJ22, TBJV is constituted；The hand closes loop and closes signal contact, hand conjunction control relay SHKKJ, hand jump by hand
Control relay STKKJ is composed in series；It is described close a floodgate keep loop and the hand close between loop by three diode D2, D3,
D4, the normally closed contact of closing pressure relay HTJ are constituted.
2. a kind of control loop of breaker operation cabinet according to claim 1, it is characterised in that first group of tripping operation
Wire loop includes that hand trip(ping) loop, hand trip(ping) keep loop, trip protection loop, trip protection to keep loop, close position
Monitoring circuit；Signal contact, hand are jumped by hand and jumps relay STJ, hand conjunction control relay SHKKJ, hand in the hand trip(ping) loop
Control relay STKKJ is jumped to be composed in series；The hand trip(ping) keeps loop by normally opened the connecing of tripping operation guard relay TBJ11
Point, tripping operation guard relay TBJ11, the normally closed contact of tripping operation pressure switch TYJ, the switching switch of a distant place/on the spot, normally opened connect
Point, jump circle TQ are constituted；The trip protection loop and trip protection keep loop by trip protection signal contact, tripping operation pressure after
The normally closed contact of electrical equipment TYJ, the normal opened contact of trip protection relay TBJ12, trip protection relay TBJ12, normal opened contact,
Circle TQ is jumped to constitute；Conjunction position monitoring circuit closes position relay HWJ1, HWJ2, HWJ3, indicator lamp L2 and is composed in series by three；Institute
State hand trip(ping) signal in parallel by being carried out after the normal open switch of circuit breaker mechanism case with the trip protection signal, then with it is described
Jump circle TQ series connection.
3. a kind of control loop of breaker operation cabinet according to claim 1, it is characterised in that second group of tripping operation
Wire loop includes operation power, closes position monitoring circuit, hand trip(ping) holding loop, hand trip(ping) loop, trip protection holding
Loop, trip protection loop；Conjunction position monitoring circuit closes position relay HWJ4, HWJ5, HWJ6, indicator lamp L2 and connects by three
Composition；The hand trip(ping) loop and hand trip(ping) keep loop by STJ relay normally open contacts, tripping operation pressure switch TYJ
Normally closed contact, the normal opened contact of trip protection relay TBJ21, trip protection relay TBJ21, the switching of a distant place/on the spot open
Pass, normal opened contact, jump circle TQ are constituted；The trip protection loop and the trip protection keep loop to be connect by trip protection signal
Normally closed contact, the normal opened contact of trip protection relay TBJ22, the trip protection relay of point, tripping operation pressure switch TYJ
TBJ22, normal opened contact, jump circle TQ are constituted；The hand trip(ping) signal is with the trip protection signal by circuit breaker mechanism case
Normal open switch after it is in parallel, then connected with the circle TQ that jumps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510198299.0A CN104821557B (en) | 2015-04-23 | 2015-04-23 | A kind of control loop of breaker operation cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510198299.0A CN104821557B (en) | 2015-04-23 | 2015-04-23 | A kind of control loop of breaker operation cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104821557A CN104821557A (en) | 2015-08-05 |
| CN104821557B true CN104821557B (en) | 2017-06-16 |
Family
ID=53731769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510198299.0A Active CN104821557B (en) | 2015-04-23 | 2015-04-23 | A kind of control loop of breaker operation cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104821557B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451745B (en) * | 2016-10-18 | 2023-04-11 | 国网福建省电力有限公司 | Automatic switching system for relay protection outlet loop |
| CN106849363B (en) * | 2017-03-17 | 2019-03-12 | 雅砻江流域水电开发有限公司 | The three-phase mechanical linkage circuit breaker control box that tripping contact is shown entirely |
| CN111756024B (en) * | 2020-06-11 | 2023-03-03 | 深圳供电局有限公司 | Circuit breaker control circuit |
| CN112968521B (en) * | 2021-02-03 | 2022-08-02 | 中国能源建设集团安徽省电力设计院有限公司 | Circuit breaker control circuit of phase selection divide-shut brake |
| CN113064011B (en) * | 2021-03-25 | 2023-09-15 | 温州电力建设有限公司 | Automatic test method for protection operation loop |
| CN113472072B (en) * | 2021-06-02 | 2023-07-21 | 南方电网调峰调频发电有限公司 | Double-working-mode breaker operation box |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202363976U (en) * | 2011-12-06 | 2012-08-01 | 广东先达电业股份有限公司 | Transformer substation comprehensive automatic breaker control loop with burning-out proof function |
| CN204290261U (en) * | 2014-12-16 | 2015-04-22 | 榆林学院 | A kind of medium voltage network breaker operator loop |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203813514U (en) * | 2013-07-22 | 2014-09-03 | 国家电网公司 | Control loop for high-voltage circuit breaker |
| CN204012224U (en) * | 2014-05-28 | 2014-12-10 | 山东兴驰高压开关有限公司 | The anti-jump protection of GIS breaker energy storage motor loop |
| CN203850926U (en) * | 2014-05-29 | 2014-09-24 | 国家电网公司 | Modular intelligent operating loop of high-voltage breaker |
-
2015
- 2015-04-23 CN CN201510198299.0A patent/CN104821557B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202363976U (en) * | 2011-12-06 | 2012-08-01 | 广东先达电业股份有限公司 | Transformer substation comprehensive automatic breaker control loop with burning-out proof function |
| CN204290261U (en) * | 2014-12-16 | 2015-04-22 | 榆林学院 | A kind of medium voltage network breaker operator loop |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104821557A (en) | 2015-08-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104821557B (en) | A kind of control loop of breaker operation cabinet | |
| CN103746349A (en) | Circuit breaker failure protection mechanism of transformer substation and optimal configuration method for circuit breaker protection | |
| CN104793131A (en) | Full working condition monitoring circuit for tripping coil and closing coil of circuit breaker | |
| CN106655475A (en) | Automatic switching and delay shutdown circuit of ship emergency power generation set | |
| CN102005720A (en) | Neutral line breakage detection protection method and device | |
| CN107863765B (en) | Improve arc current transfevent AC fault current limiter and current-limiting method | |
| CN201549868U (en) | Low-voltage switch intelligent controller | |
| CN202712819U (en) | Protection system capable of realizing breaker failure triggering relevant trips of interconnecting transformer | |
| CN201178294Y (en) | Automation apparatus of composite distribution network | |
| CN202094598U (en) | Rated current adjustable leakage protector | |
| CN204536498U (en) | Isolating switch tripping coil full working scope monitoring circuit | |
| CN204304453U (en) | A kind of interlock protection structure of water-cooling type SVG equipment | |
| CN204086340U (en) | A kind of switch external intelligent electric energy meter stops repeating installation | |
| CN204271607U (en) | A kind of dual trip-preventing circuit | |
| CN205791495U (en) | The protection of controller switching equipment intelligent switch-on controls device | |
| CN207442421U (en) | A kind of microcomputer protecting device | |
| CN202059148U (en) | Leakage protector suitable for data communication | |
| CN202059151U (en) | Leakage protector with alarm circuit | |
| CN209170050U (en) | A kind of ultra-high voltage converter station breaker closing and jump position monitoring circuit | |
| TWI812416B (en) | An automatic sequence tripping and reclosing device | |
| CN204013306U (en) | A kind of generator excitation adjusting device and generator system | |
| CN208226542U (en) | A kind of low-voltage comprehensive-protection device with anti-bouncing function | |
| CN106159909A (en) | The protection of controller switching equipment intelligent switch-on controls device | |
| CN203301218U (en) | Device used for gas turbine power plant circulating water MCC power source switching | |
| CN101170028A (en) | Omnipotent breaker with reclosing device and its control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |