CN105375450B - A kind of fixed cabinet secondary circuit - Google Patents
A kind of fixed cabinet secondary circuit Download PDFInfo
- Publication number
- CN105375450B CN105375450B CN201510807160.1A CN201510807160A CN105375450B CN 105375450 B CN105375450 B CN 105375450B CN 201510807160 A CN201510807160 A CN 201510807160A CN 105375450 B CN105375450 B CN 105375450B
- Authority
- CN
- China
- Prior art keywords
- circuit
- breaker
- auxiliary contact
- closing
- trip
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
Abstract
A kind of fixed cabinet secondary circuit, including closing circuit, trip(ping) circuit, wherein, closing circuit is serially connected with the first auxiliary contact of breaker (DL), closing coil (HQ), trip(ping) circuit is serially connected with the second auxiliary contact of breaker (DL), breaking coil (TQ), the closing circuit is also serially connected with breaker both sides the first auxiliary contact of disconnecting link (1G, 2G), and the breaker both sides the first auxiliary contact of disconnecting link (1G, 2G) are normally opened contact.The present invention reduces fixed cabinet breaker commissioning staffs, reduce the complexity of experiment, increase the safety that electrification is closed a floodgate, tested.
Description
Technical field
The invention belongs to electric system transmission ＆ distribution electro-technical fields, and in particular to the fixed cabinet anti-misoperation locking of a kind of reinforcement and conveniently
The secondary circuit of debugging.
Background technology
Currently, in the fixation cabinet breaker closing circuit that producer provides, breaker both sides disconnecting link position is not concatenated, simultaneously
Closing circuit cannot be latched；In the fixation cabinet breaker switching on and off circuit that producer provides, also it is not provided with and individually tests back
Road, when experiment, needs commissioning staff by after the short circuit of measuring and controlling protective device scene, then tests divide-shut brake circuit.
Due to, there is no anti-misoperation locking is carried out with breaker both sides disconnecting link position, leading to operator in existing closing circuit
Member is unable to safety operation；And existing test method is that do not have protection supervisory equipment reliable by short line scene short circuit
Anti-error measure, involve numerous first and second equipment and corresponding commissioning staff, increase complexity, the danger of experiment.
Invention content
The present invention be directed to above-mentioned technical problems, it is proposed that a kind of novel fixation cabinet secondary circuit, including closing circuit,
Trip(ping) circuit, wherein closing circuit is serially connected with the first auxiliary contact of breaker, closing coil, and trip(ping) circuit is serially connected with breaker
Second auxiliary contact, breaking coil, the closing circuit are also serially connected with breaker both sides the first auxiliary contact of disconnecting link, the open circuit
Device both sides the first auxiliary contact of disconnecting link are normally opened contact.
Preferably, the secondary circuit further includes experiment closing circuit and experiment trip(ping) circuit；Testing closing circuit includes
First divide-shut brake button and breaker both sides the second auxiliary contact of disconnecting link, the second auxiliary contact in the circuit are normally-closed contact,
The head end of experiment closing circuit is connected to the anode of DC power supply, and end is connected to the intermediate terminal of closing circuit, the intermediate ends
Son is located at after breaker both sides the first auxiliary contact of disconnecting link of closing circuit, and positioned at the first auxiliary contact of breaker, conjunction
Before brake cable circle；It includes the second divide-shut brake button and breaker both sides disconnecting link third auxiliary contact, the circuit to test trip(ping) circuit
In third auxiliary contact be normally-closed contact, the head end for testing trip(ping) circuit is connected to DC power anode, and end is connected to jump
The intermediate terminal in lock circuit, the intermediate terminal are located at before the second auxiliary contact of breaker of trip(ping) circuit, breaking coil.
Preferably, the secondary circuit further includes operational power source circuit, and two terminals of protection supervisory equipment are separately connected
The positive and negative anodes of DC power supply constitute operational power source circuit, for providing power supply to protection supervisory equipment.
Preferably, a terminal of the head end connection protection supervisory equipment of closing circuit, end connects DC power cathode；
One terminal of the head end connection protection supervisory equipment of trip(ping) circuit, end connects DC power cathode.
Beneficial effects of the present invention：Reduce fixed cabinet breaker commissioning staff, reduces the complexity of experiment, increase
The safety that electrification is closed a floodgate, tested.
Description of the drawings
Fig. 1 is the fixation cabinet secondary circuit graph of the present invention.
The meaning of reference numeral：
1 operational power source circuit
2 closing circuits
3 experiment closing circuits
4 trip(ping) circuits
5 experiment trip(ping) circuits
6 protection supervisory equipments
7 35kV breaker mechanisms
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, is only used for explaining
The present invention, and be not considered as limiting the invention.
Fig. 1 show the fixation cabinet secondary circuit graph of the present invention.As shown in Figure 1, the fixation cabinet secondary circuit includes operation
Electric power loop 1, closing circuit 2, experiment closing circuit 3, trip(ping) circuit 4, experiment trip(ping) circuit 5.
Wherein, the positive and negative anodes that two terminals of protection supervisory equipment 6 are separately connected DC power supply constitute operation power and return
Road 1, for providing power supply to protection supervisory equipment 6；Closing circuit 2 is serially connected with auxiliary contacts of circuit breaker DL, closing coil HQ, breaks
Road device both sides disconnecting link auxiliary contact 1G, 2G, auxiliary contact 1G, 2G in the closing circuit 2 are normally opened contact, closing circuit 2
Head end connects a terminal of protection supervisory equipment 6, and end connects DC power cathode；It is auxiliary that trip(ping) circuit 4 is serially connected with breaker
Contact DL and breaking coil TQ are helped, a terminal of the head end connection protection supervisory equipment 6 of trip(ping) circuit 4, end connects direct current
Power cathode；It includes divide-shut brake button HA and breaker both sides disconnecting link auxiliary contact 1G, 2G to test closing circuit 3, in the circuit
Auxiliary contact 1G, 2G be normally-closed contact, the head end of experiment closing circuit 3 is connected to the anode of DC power supply, and end is connected to
The intermediate terminal X3 of closing circuit 2, intermediate terminal X3 are located at after disconnecting switch auxiliary contact 1G, 2G of closing circuit 2, and
Before auxiliary contacts of circuit breaker DL, closing coil HQ；It includes divide-shut brake button TA and breaker both sides to test trip(ping) circuit 5
Disconnecting link auxiliary contact 1G, 2G, auxiliary contact 1G, 2G in the circuit are normally-closed contact, and the head end of experiment trip(ping) circuit 5 is connected to
DC power anode, end are connected to the intermediate terminal X7 of trip(ping) circuit 4, and intermediate terminal X7 is located at the breaker of trip(ping) circuit 4
Before auxiliary contact DL, breaking coil TQ.
Circuit is the newly-increased circuit of the present invention in frame indicated by (1) in Fig. 1, (2), (3), and concrete condition is as follows：
Circuit (1) is to increase breaker both sides disconnecting link auxiliary contact 1G, 2G of concatenation in closing circuit 2, in the circuit
It is normally opened contact to assist electric shock 1G, 2G, realizes anti mis-closedown function, i.e., only when breaker both sides disconnecting link is in closing position
When, 1G, 2G auxiliary contact are closed, and could close breaker.
Circuit (2) and (3) are experiment closing circuit 3, experiment trip(ping) circuit 5, and when fixed cabinet breaker both sides, disconnecting link is in
When open position, and divide-shut brake button is pressed, the conducting of divide-shut brake test loop, testing crew can be at the disconnecting link of breaker both sides
Safe to do experiment to circuit-breaker switching on-off circuit when open position, the concrete operating principle of test loop (2) and (3) is such as
Under：
Test closing circuit 3：Breaker both sides disconnecting link is opened, i.e., 1G, 2G auxiliary contact are closed, and press switch knob
After HA, experiment closing circuit 3 is connected；Experiment is finished by switch knob HA involutions, that is, unlocks experiment closing circuit 3；
Test trip(ping) circuit 5：Breaker both sides disconnecting link is opened, i.e., 1G, 2G auxiliary contact are closed, and press trip button
After TA, experiment trip(ping) circuit 5 is connected；Experiment is finished by trip button TA involutions, that is, unlocks experiment trip(ping) circuit 5.
It should be noted that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although with reference to preferable
Embodiment describes the invention in detail, it will be understood by those of ordinary skill in the art that, it can be to the technology of the present invention
Scheme is modified or replaced equivalently, and without departing from the spirit of the technical scheme of the invention and range, should all be covered in this hair
In bright right.
Claims (3)
1. a kind of fixed cabinet secondary circuit, including closing circuit, trip(ping) circuit, wherein closing circuit is serially connected with breaker first
Auxiliary contact (DL), closing coil (HQ), trip(ping) circuit are serially connected with the second auxiliary contact of breaker (DL), breaking coil (TQ),
It is characterized in that：The closing circuit is also serially connected with breaker both sides the first auxiliary contact of disconnecting link, breaker both sides disconnecting link
First auxiliary contact are normally opened contact, realize anti mis-closedown function, i.e., only when breaker both sides disconnecting link is in closing position,
Breaker both sides the first auxiliary contact of disconnecting link are closed, and could close breaker；
The secondary circuit further includes experiment closing circuit and experiment trip(ping) circuit；
It includes the first divide-shut brake button (HA) and breaker both sides the second auxiliary contact of disconnecting link to test closing circuit, in the circuit
Second auxiliary contact are normally-closed contact, and the head end for testing closing circuit is connected to the anode of DC power supply, and end is connected to combined floodgate
The intermediate terminal (X3) in circuit, the intermediate terminal (X3) be located at closing circuit breaker both sides the first auxiliary contact of disconnecting link it
Afterwards, and before the first auxiliary contact of breaker (DL), closing coil (HQ)；
It includes the second divide-shut brake button (TA) and breaker both sides disconnecting link third auxiliary contact to test trip(ping) circuit, in the circuit
Third auxiliary contact are normally-closed contact, and the head end for testing trip(ping) circuit is connected to DC power anode, and end is connected to and trips back
The intermediate terminal (X7) on road, the intermediate terminal (X7) are located at the second auxiliary contact of breaker (DL), the breaking coil of trip(ping) circuit
(TQ) before.
2. fixed cabinet secondary circuit according to claim 1, it is characterised in that：The secondary circuit further includes operation power
Circuit, the positive and negative anodes that two terminals of protection supervisory equipment are separately connected DC power supply constitute operational power source circuit, for giving
Protection supervisory equipment provides power supply.
3. fixed cabinet secondary circuit according to claim 2, it is characterised in that：The head end connection protection observing and controlling of closing circuit
One terminal of device, end connect DC power cathode；One terminal of the head end connection protection supervisory equipment of trip(ping) circuit,
End connects DC power cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510807160.1A CN105375450B (en) | 2015-11-19 | 2015-11-19 | A kind of fixed cabinet secondary circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510807160.1A CN105375450B (en) | 2015-11-19 | 2015-11-19 | A kind of fixed cabinet secondary circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105375450A CN105375450A (en) | 2016-03-02 |
| CN105375450B true CN105375450B (en) | 2018-07-17 |
Family
ID=55377368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510807160.1A Active CN105375450B (en) | 2015-11-19 | 2015-11-19 | A kind of fixed cabinet secondary circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105375450B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1975957A (en) * | 2006-12-13 | 2007-06-06 | 北海银河高科技产业股份有限公司 | Portable analog circuit breaker |
| CN202678948U (en) * | 2012-06-14 | 2013-01-16 | 鞍钢股份有限公司 | Secondary circuit for inlet wire relay protection device |
| CN203368011U (en) * | 2013-05-07 | 2013-12-25 | 南京南自西电电气有限责任公司 | Circuit breaker trip coil automation protection device |
| CN203859486U (en) * | 2014-03-28 | 2014-10-01 | 北京京桥热电有限责任公司 | Switch electrical anti-tripping circuit |
| CN104092300A (en) * | 2014-06-30 | 2014-10-08 | 国家电网公司 | 10kV handcart type high-voltage switch cabinet brake-separating monitoring loop |
| CN205595774U (en) * | 2015-11-19 | 2016-09-21 | 内蒙古电力勘测设计院有限责任公司 | Stationary cabinet secondary circuit |
-
2015
- 2015-11-19 CN CN201510807160.1A patent/CN105375450B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1975957A (en) * | 2006-12-13 | 2007-06-06 | 北海银河高科技产业股份有限公司 | Portable analog circuit breaker |
| CN202678948U (en) * | 2012-06-14 | 2013-01-16 | 鞍钢股份有限公司 | Secondary circuit for inlet wire relay protection device |
| CN203368011U (en) * | 2013-05-07 | 2013-12-25 | 南京南自西电电气有限责任公司 | Circuit breaker trip coil automation protection device |
| CN203859486U (en) * | 2014-03-28 | 2014-10-01 | 北京京桥热电有限责任公司 | Switch electrical anti-tripping circuit |
| CN104092300A (en) * | 2014-06-30 | 2014-10-08 | 国家电网公司 | 10kV handcart type high-voltage switch cabinet brake-separating monitoring loop |
| CN205595774U (en) * | 2015-11-19 | 2016-09-21 | 内蒙古电力勘测设计院有限责任公司 | Stationary cabinet secondary circuit |
Non-Patent Citations (1)
| Title |
|---|
| 断路器控制回路缺陷引起的事故分析及改进方案;张宝坤等;《电力安全技术》;20111130;第13卷(第11期);第31页左栏，图3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105375450A (en) | 2016-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201909821U (en) | Spare power automatic switching device tester | |
| US20170327006A1 (en) | Dc circuit breaker and disconnector | |
| CN205543704U (en) | Safe distribution cubical switchboard | |
| CN103941180A (en) | High-voltage line breaker condition monitoring system | |
| CN109192569B (en) | Control method for locking between three-station grounding switch and breaker opening | |
| CN211741509U (en) | Direct current breaker off-line testing device | |
| CN211456660U (en) | Multi-power output circuit breaker control protection device | |
| CN105374645B (en) | A kind of hands injured secondary circuit | |
| CN105375450B (en) | A kind of fixed cabinet secondary circuit | |
| CN207719072U (en) | A kind of circuit-breaker switching on-off loop monitor | |
| CN207819446U (en) | A kind of five anti-loop control systems for hybrid gas insulation switchgear | |
| CN201576008U (en) | Cable device used for testing switching property of trolley | |
| CN205595774U (en) | Stationary cabinet secondary circuit | |
| CN205264651U (en) | Handcart cabinet | |
| CN203927005U (en) | Electric valve control circuit and the electric operated valve instrument that comprises this circuit | |
| CN108845249A (en) | A kind of withdrawable vacuum circuit breaker of VD4 series tests auxiliary tool | |
| US10027103B2 (en) | Protection device for electrical network | |
| CN208172189U (en) | A kind of withdrawable vacuum circuit breaker of VD4 series tests auxiliary tool | |
| CN104953703A (en) | Double-power-supply control box with anti-misoperation function | |
| CN204645869U (en) | Dry-type transformer protection system and the dry-type transformer with this protection system | |
| CN110021924A (en) | A kind of five anti-loop control systems and method for hybrid gas insulation switchgear | |
| CN103745850A (en) | A high-voltage breaker opening-closing control apparatus | |
| CN220934854U (en) | Locking circuit for preventing 400V bus from closing ring | |
| CN215262363U (en) | Auxiliary device for testing dynamic characteristics of permanent magnet type high-voltage vacuum circuit breaker | |
| CN210323219U (en) | Test circuit applied to high-voltage switch cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |