CN105356585A - Breaker closing and blocking loop - Google Patents
Breaker closing and blocking loop Download PDFInfo
- Publication number
- CN105356585A CN105356585A CN201510831916.6A CN201510831916A CN105356585A CN 105356585 A CN105356585 A CN 105356585A CN 201510831916 A CN201510831916 A CN 201510831916A CN 105356585 A CN105356585 A CN 105356585A
- Authority
- CN
- China
- Prior art keywords
- control loop
- shutting
- brake control
- breaker
- subsequent use
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/02—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
Abstract
The invention discloses a breaker closing and blocking loop. The breaker closing and blocking loop is formed through serial connection of a control power supply, a change over switch, a closing maintenance relay coil, anti-tripping relay normally closed contacts, a breaker closing and blocking module, breaker auxiliary normally closed contacts and a closing coil, wherein the breaker closing and blocking module is connected with the corresponding breaker closing loop in series; and the breaker closing and blocking module is formed by a series parallel circuit which is formed by normally closed contacts on other incoming lines and sectionalized lines; and the breaker closing and blocking module is used for blocking the breaker closing and blocking loop on the line when other inlet lines and sectionalized lines are conducted. The breaker closing and blocking loop can realize closing and blocking between each incoming switch, and between each incoming switch and each sectionalized switch, thus avoiding mal-operation and guaranteeing personal safety and equipment safety.
Description
Technical field
The present invention relates to Electric control field, be specifically related to a kind of primary cut-out shutting-brake control loop with blocking function.
Background technology
Electric power is the indispensable a kind of energy of development of modern society economy and daily life, China some areas power situation anxiety, electric capital equipment and line failure rate higher, operation of power networks is in deficiency for subsequent use or without stand-by state, just in case have a power failure just may cause incalculable damage to social and resident living.For improving power supply reliability, transformer station can increase reserve capacity, avoids large area blackout and mains breakdown to greatest extent, ensures the safe and stable operation of electrical network.
Double circuit power supply refers to two circuits of Liang Ge electric substation or electric substation two bin level equal voltage out.When a circuit has fault outage, another circuit can switch at once comes into operation.Adopt " double loop " electric power system, even if run into power failure, also can ensure its normal operation, Liang Ge transformer station also can realize over-zone feeding, as occurred, one of them Bulk Supply Substation has a power failure, and system will automatically switch, and undertakes power supply task completely by another Bulk Supply Substation.
But common control circuit of high-voltage circuit breaker, there is no closing locking link.For the 10kV switching station of two segmentations three back into line, each wire inlet loop does not allow paired running, if carry out closing operation to the circuit breaker on multichannel inlet wire simultaneously, will cause device damage and personal safety accident.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of breaker closing control loop with blocking function, present invention achieves the closing locking between each service entrance switch and between inlet wire and block switch, avoids misoperation, ensure that personal safety and device security.
The present invention is achieved through the following technical solutions:
A kind of breaker closing control loop, assisted normally-closed contact and closing coil to be connected in series formed by control power supply, change over switch, combined floodgate latching relay coil, anti-trip relay normally-closed contact, circuit breaker, also comprise breaker closing lock modules, described breaker closing lock modules is serially connected in corresponding closing circuit of circuit breaker, the series-parallel circuit be made up of the circuit breaker normally-closed contact on other inlet wire and sectionalized line is formed, for when other inlet wire or sectionalized line conducting, the breaker closing control loop on this circuit of locking.
The further Technological improvement plan of the present invention is:
Described breaker closing control loop, comprises main shutting-brake control loop;
Belonging to the first shutting-brake control loop for subsequent use of same transformer station with main shutting-brake control loop, for when breaking down in described main shutting-brake control loop, connecting this first shutting-brake control loop for subsequent use;
Belonging to the second shutting-brake control loop for subsequent use of different substation with main shutting-brake control loop, for when breaking down in described main shutting-brake control loop and the first shutting-brake control loop for subsequent use, connecting this second shutting-brake control loop for subsequent use;
And segmentation shutting-brake control loop,
Wherein, breaker closing lock modules in main shutting-brake control loop, with a pair auxiliary normally-closed contact of the circuit breaker in segmentation shutting-brake control loop connects together after being connected in series by a pair auxiliary normally-closed contact of the circuit breaker in first and second shutting-brake control loop for subsequent use again;
Breaker closing lock modules in first shutting-brake control loop for subsequent use, by another of the circuit breaker in main combined floodgate and segmentation shutting-brake control loop, another of the circuit breaker in shutting-brake control loop for subsequent use is serially connected to auxiliary normally-closed contact with second again to auxiliary normally-closed contact and after connecing;
Breaker closing lock modules in second shutting-brake control loop for subsequent use, by the 3rd the 3rd being serially connected to auxiliary normally-closed contact of circuit breaker in shutting-brake control loop for subsequent use with first again to auxiliary normally-closed contact and after connecing of the circuit breaker in main combined floodgate and segmentation shutting-brake control loop;
Breaker closing lock modules in segmentation shutting-brake control loop, by first and second shutting-brake control loop for subsequent use circuit breaker the 4th auxiliary normally-closed contact is connected in series after with the 4th of the circuit breaker in main shutting-brake control loop, auxiliary normally-closed contact is connected together again.
The present invention compared with prior art, has following obvious advantage:
Breaker closing control loop designed by the present invention, can ensure when main shutting-brake control loop is connected, by first and second shutting-brake control loop locking for subsequent use; When the first shutting-brake control loop for subsequent use is connected, by main shutting-brake control loop and the second shutting-brake control loop locking for subsequent use; When the second shutting-brake control loop for subsequent use is connected, by main closing circuit and the first shutting-brake control loop locking for subsequent use, and then ensure that the security reliability of breaker closing control loop, avoid misoperation, ensure that personal safety and device security.
Accompanying drawing explanation
Fig. 1 is the primary connection circuit figure of the preferred embodiments of the present invention.
Fig. 2 be the preferred embodiments of the present invention main shutting-brake control loop.
Fig. 3 be the preferred embodiments of the present invention the first shutting-brake control loop for subsequent use.
Fig. 4 be the preferred embodiments of the present invention the second shutting-brake control loop for subsequent use.
Fig. 5 be the preferred embodiments of the present invention segmentation shutting-brake control loop.
Wherein, description of reference numerals is as follows:
KM, control power supply; DK, automatic air-break switch; KK, control switch; HBJ, combined floodgate latching relay; FTJ, anti-trip relay; DL1, main shutting-brake control loop relay; DL2, the first shutting-brake control loop for subsequent use relay; DL3, the second shutting-brake control loop for subsequent use relay; DL4, segmentation shutting-brake control loop relay; HQ, closing coil.
Embodiment
As shown in Figure 1, the present invention is preferably applied to the 10kV switching station of two segmentations three back into line.
As shown in Figures 2 to 4, breaker closing control loop of the present invention, by control power supply, change over switch, combined floodgate latching relay coil, anti-trip relay normally-closed contact, circuit breaker assists normally-closed contact and closing coil serial connection to form, also comprise breaker closing lock modules, described breaker closing lock modules is serially connected in corresponding closing circuit of circuit breaker, the series-parallel circuit be made up of the circuit breaker normally-closed contact on other inlet wire and sectionalized line is formed, for when other inlet wire or sectionalized line conducting, breaker closing control loop on this circuit of locking.
Described breaker closing control loop, comprises main shutting-brake control loop;
Belonging to the first shutting-brake control loop for subsequent use of same transformer station with main shutting-brake control loop, for when breaking down in described main shutting-brake control loop, connecting this first shutting-brake control loop for subsequent use;
Belonging to the second shutting-brake control loop for subsequent use of different substation with main shutting-brake control loop, for when breaking down in described main shutting-brake control loop and the first shutting-brake control loop for subsequent use, connecting this second shutting-brake control loop for subsequent use;
And segmentation shutting-brake control loop,
Wherein, breaker closing lock modules in main shutting-brake control loop, with a pair auxiliary normally-closed contact of the circuit breaker in segmentation shutting-brake control loop connects together after being connected in series by a pair auxiliary normally-closed contact of the circuit breaker in first and second shutting-brake control loop for subsequent use again;
Breaker closing lock modules in first shutting-brake control loop for subsequent use, by another of the circuit breaker in main combined floodgate and segmentation shutting-brake control loop, another of the circuit breaker in shutting-brake control loop for subsequent use is serially connected to auxiliary normally-closed contact with second again to auxiliary normally-closed contact and after connecing;
Breaker closing lock modules in second shutting-brake control loop for subsequent use, by the 3rd the 3rd being serially connected to auxiliary normally-closed contact of circuit breaker in shutting-brake control loop for subsequent use with first again to auxiliary normally-closed contact and after connecing of the circuit breaker in main combined floodgate and segmentation shutting-brake control loop;
Breaker closing lock modules in segmentation shutting-brake control loop, by first and second shutting-brake control loop for subsequent use circuit breaker the 4th auxiliary normally-closed contact is connected in series after with the 4th of the circuit breaker in main shutting-brake control loop, auxiliary normally-closed contact is connected together again.
The course of work of the present invention is sketched by accompanying drawing 2:
If segmentation shutting-brake control circuit breaker DL4 is in closing position, then DL4 assists normally-closed contact to disconnect, and main shutting-brake control loop disconnects, and now performs closing operation to main shutting-brake control circuit breaker DL1 inoperative.
If segmentation shutting-brake control circuit breaker DL4 is in open position, then DL4 assists normally-closed contact conducting, now closing operation is performed to main shutting-brake control circuit breaker DL1, the instantaneous conducting of main combined floodgate starting-up later time, closing coil excitation, starts breaker operation mechanism, after switch closes, go here and there in the circuit breaker normally-closed contact of closing circuit and open, disconnect closing circuit.
By the shutting-brake control loop in accompanying drawing 2 to 4, following function can be realized:
1, DL1 combined floodgate condition: two conditions meet:
1) DL2, DL3 open position
2) DL4 open position
2, DL2 combined floodgate condition: DL3 must at open position, and two other condition meets one:
1) DL1 open position
2) DL4 open position
3, DL3 combined floodgate condition: DL2 must at open position, and two other condition meets one:
1) DL1 open position
2) DL4 open position
4, DL4 combined floodgate condition: two conditions meet:
1) DL2, DL3 open position
2) DL1 open position
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned execution mode, also comprises the technical scheme be made up of above technical characteristic combination in any.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (2)
1. a breaker closing control loop, assisted normally-closed contact and closing coil to be connected in series formed by control power supply, change over switch, combined floodgate latching relay coil, anti-trip relay normally-closed contact, circuit breaker, it is characterized in that: also comprise breaker closing lock modules, described breaker closing lock modules is serially connected in corresponding closing circuit of circuit breaker, the series-parallel circuit be made up of the circuit breaker normally-closed contact on other inlet wire and sectionalized line is formed, for when other inlet wire or sectionalized line conducting, the breaker closing control loop on this circuit of locking.
2. a kind of breaker closing control loop according to claim 1, is characterized in that: comprise main shutting-brake control loop;
Belonging to the first shutting-brake control loop for subsequent use of same transformer station with main shutting-brake control loop, for when breaking down in described main shutting-brake control loop, connecting this first shutting-brake control loop for subsequent use;
Belonging to the second shutting-brake control loop for subsequent use of different substation with main shutting-brake control loop, for when breaking down in described main shutting-brake control loop and the first shutting-brake control loop for subsequent use, connecting this second shutting-brake control loop for subsequent use;
And segmentation shutting-brake control loop,
Wherein, breaker closing lock modules in main shutting-brake control loop, with a pair auxiliary normally-closed contact of the circuit breaker in segmentation shutting-brake control loop connects together after being connected in series by a pair auxiliary normally-closed contact of the circuit breaker in first and second shutting-brake control loop for subsequent use again;
Breaker closing lock modules in first shutting-brake control loop for subsequent use, by another of the circuit breaker in main combined floodgate and segmentation shutting-brake control loop, another of the circuit breaker in shutting-brake control loop for subsequent use is serially connected to auxiliary normally-closed contact with second again to auxiliary normally-closed contact and after connecing;
Breaker closing lock modules in second shutting-brake control loop for subsequent use, by the 3rd the 3rd being serially connected to auxiliary normally-closed contact of circuit breaker in shutting-brake control loop for subsequent use with first again to auxiliary normally-closed contact and after connecing of the circuit breaker in main combined floodgate and segmentation shutting-brake control loop;
Breaker closing lock modules in segmentation shutting-brake control loop, by first and second shutting-brake control loop for subsequent use circuit breaker the 4th auxiliary normally-closed contact is connected in series after with the 4th of the circuit breaker in main shutting-brake control loop, auxiliary normally-closed contact is connected together again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510831916.6A CN105356585B (en) | 2015-11-25 | 2015-11-25 | Closing locking circuit of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510831916.6A CN105356585B (en) | 2015-11-25 | 2015-11-25 | Closing locking circuit of breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105356585A true CN105356585A (en) | 2016-02-24 |
| CN105356585B CN105356585B (en) | 2018-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510831916.6A Expired - Fee Related CN105356585B (en) | 2015-11-25 | 2015-11-25 | Closing locking circuit of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105356585B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086667A (en) * | 2017-06-08 | 2017-08-22 | 国电大渡河流域水电开发有限公司 | A kind of outlet breaker closing circuit structure and its method of work |
| CN112448475A (en) * | 2019-09-02 | 2021-03-05 | 北京国电思达科技有限公司 | Switching-on and switching-off control device of high-voltage circuit breaker for ring main unit and working method |
| CN112653091A (en) * | 2020-12-14 | 2021-04-13 | 河南平高电气股份有限公司 | Circuit breaker locking control circuit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203760330U (en) * | 2014-03-27 | 2014-08-06 | 莱芜钢铁集团有限公司 | Breaker closing circuit |
| CN204190481U (en) * | 2014-09-01 | 2015-03-04 | 国家电网公司 | A kind of 10kV vacuum circuit-breaker closing coil automatic throw-in equipment for subsequent use |
| CN104505805A (en) * | 2014-12-16 | 2015-04-08 | 榆林学院 | Breaker operating circuit for medium voltage system |
-
2015
- 2015-11-25 CN CN201510831916.6A patent/CN105356585B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203760330U (en) * | 2014-03-27 | 2014-08-06 | 莱芜钢铁集团有限公司 | Breaker closing circuit |
| CN204190481U (en) * | 2014-09-01 | 2015-03-04 | 国家电网公司 | A kind of 10kV vacuum circuit-breaker closing coil automatic throw-in equipment for subsequent use |
| CN104505805A (en) * | 2014-12-16 | 2015-04-08 | 榆林学院 | Breaker operating circuit for medium voltage system |
Non-Patent Citations (1)
| Title |
|---|
| 龙腾云等: "双电源用户变电所如何实现进线与分段操作闭锁", 《电气技术》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086667A (en) * | 2017-06-08 | 2017-08-22 | 国电大渡河流域水电开发有限公司 | A kind of outlet breaker closing circuit structure and its method of work |
| CN107086667B (en) * | 2017-06-08 | 2023-08-04 | 国能大渡河流域水电开发有限公司 | Switching-on loop structure of outlet circuit breaker and working method thereof |
| CN112448475A (en) * | 2019-09-02 | 2021-03-05 | 北京国电思达科技有限公司 | Switching-on and switching-off control device of high-voltage circuit breaker for ring main unit and working method |
| CN112448475B (en) * | 2019-09-02 | 2022-12-27 | 北京国电思达科技有限公司 | Switching-on and switching-off control device of high-voltage circuit breaker for ring main unit and working method |
| CN112653091A (en) * | 2020-12-14 | 2021-04-13 | 河南平高电气股份有限公司 | Circuit breaker locking control circuit |
| CN112653091B (en) * | 2020-12-14 | 2024-03-22 | 河南平高电气股份有限公司 | Locking control loop of circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105356585B (en) | 2018-02-13 |
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