CN201877812U - Tripping control system for relay protection - Google Patents
Tripping control system for relay protection Download PDFInfo
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- CN201877812U CN201877812U CN2010206408026U CN201020640802U CN201877812U CN 201877812 U CN201877812 U CN 201877812U CN 2010206408026 U CN2010206408026 U CN 2010206408026U CN 201020640802 U CN201020640802 U CN 201020640802U CN 201877812 U CN201877812 U CN 201877812U
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- relay
- control system
- series
- tripping
- tripping operation
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Abstract
A tripping control system for relay protection comprises a first system and a second system, wherein a first relay is connected in series between a first switching logical module and a tripping output end of the first system; a second relay is connected in series between a second switching logical module and a tripping output end of the second system; and the normally closed contacts of the first relay and the second relay are first connected in series and then in parallel, and finally connected with the tripping output ends. For the tripping control system for relay protection, the 'NoESOF' end of each switching logical module COL starts one relay. After being connected in series, the two normally closed contacts of the relay are connected with the outlet in parallel and the reliability of the outlet is enhanced. Only when two relays simultaneously lose excitation, the outlet can be used. Meanwhile, the risk of a relay contact in connection with fault protection and failure to operate is avoided.
Description
Technical field
The utility model relates to a kind of relay protection control system, particularly a kind of relaying protection tripping operation control system.
Background technology
The control system of dualization of Xu Ji disposes a switch logic COL module respectively and finishes the redundancy control system handoff functionality jointly.The master breaks down with system when two the cover equal faults of control system or COL modules are in manual mode, and two COL of system modules " No ESOF " become low level by high level simultaneously, the tripping operation outlet, and outlet logic is an antilogical.
Based on this principle, ESOF signal enabling relay is adopted in design, uses the relay normally closed contact outlet, two systems all just often, signal is a high level, relay excitation, normally closed contact is opened; When having only a system failure, signal still is a high level, relay excitation, and normally closed contact is opened; When two systems broke down simultaneously, signal became low level, relay loss of excitation, normally closed contact closure; The various failure conditions of control system are considered in this design, the direct current of can reliably stopping transport when guaranteeing the control system fault.
Based on the design of this antilogical, under circuit breaking or relay damaged situation, can cause the fault of relay loss of excitation, trip(ping) circuit will conducting; In addition, relay tip may break down, and under a relay tip failure condition, the ESOF signal that COL sends can not the effectively start outlet loop, has increased the possibility of tripping operation tripping.The problems referred to above all can whole relaying protection system will lose efficacy.
Summary of the invention
The purpose of this utility model provides a kind of relaying protection tripping operation control system, solves COL module in the existing control system of being permitted to continue can cause the relay loss of excitation under circuit breaking or relay damaged situation fault, the problem of trip(ping) circuit conducting; And under a relay tip failure condition, the ESOF signal that COL sends can not the effectively start outlet loop, has increased the possibility of tripping operation tripping.Guarantee the reliability of relay output, avoided the risk of relay tip error protection tripping.
For solving the problems of the technologies described above, the utility model is achieved in that a kind of relaying protection tripping operation control system, comprise first system and second system, be in series with first relay between first switch logic module of first system and the tripping operation output, be in series with second relay between second switch logic module of second system and the tripping operation output;
Be connected the tripping operation output after the series connection earlier of the normally-closed contact of first relay and second relay is in parallel again.
A kind of relaying protection tripping operation of the utility model control system, " No ESOF " end of each switch logic module COL starts a relay respectively, outlet in parallel again after the two relay normally-closed contacts series connection has increased the reliability of outlet, have only when two relays simultaneously losss of excitation just export; Avoid occurring the risk of relay tip error protection tripping simultaneously.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is for being permitted the system's tripping operation control system schematic diagram that continues;
Fig. 2 is the utility model apparatus structure schematic diagram.
Embodiment
A kind of relaying protection tripping operation control system, comprise first A of system and second B of system, be in series with the first relay K 144A between the first switch logic module COL1 of first A of system and the tripping operation output OUT, be in series with the second relay K 144B between the second switch logic module COL2 of second B of system and the tripping operation output; Be connected tripping operation output OUT after the series connection earlier of the normally-closed contact of the first relay K 144A and the second relay K 144B is in parallel again.
ESOF is a low level, and first A of system and second B of system are for being permitted relay net redundancy control system.
As depicted in figs. 1 and 2, Fig. 2 is the structure chart of Fig. 1 after improving, and " No ESOF " end of each switch logic module COL module of first A of system and second B of system is provided with the first relay K 144A and the second relay K 144B respectively.Consider that the first relay K 144A and the second relay K 144B contact may break down, therein under relay tip failure condition, the ESOF signal that the switch logic module is sent can not effectively start the outlet loop of tripping operation output OUT, increased the possibility of tripping operation tripping.The utility model device increases the reliability in loop by the normally-closed contact of the first relay K 144A and the second relay K 144B parallel way of connecting earlier again.
Claims (1)
1. relaying protection tripping operation control system, comprise first system (A) and second system (B), it is characterized in that: be in series with first relay (K144A) between first switch logic module (COL1) of first system (A) and the tripping operation output (OUT), be in series with second relay (K144B) between second switch logic module (COL2) of second system (B) and the tripping operation output;
Be connected tripping operation output (OUT) after the series connection earlier of the normally-closed contact of first relay (K144A) and second relay (K144B) is in parallel again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206408026U CN201877812U (en) | 2010-12-03 | 2010-12-03 | Tripping control system for relay protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206408026U CN201877812U (en) | 2010-12-03 | 2010-12-03 | Tripping control system for relay protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201877812U true CN201877812U (en) | 2011-06-22 |
Family
ID=44165721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206408026U Expired - Fee Related CN201877812U (en) | 2010-12-03 | 2010-12-03 | Tripping control system for relay protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201877812U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107959280A (en) * | 2017-12-28 | 2018-04-24 | 贵州电网有限责任公司 | A kind of breaker body three phases un identical protection circuit and control method |
| CN108831117A (en) * | 2018-07-14 | 2018-11-16 | 中铁二院工程集团有限责任公司 | High speed rail earthquake pre-warning system tractive power supply system contact net powers off interface arrangement |
| CN109003862A (en) * | 2018-08-01 | 2018-12-14 | 北京电子工程总体研究所 | A kind of relay normally open and normally-closed contact are transferred gating method |
| CN109150039A (en) * | 2018-10-19 | 2019-01-04 | 嘉陵江亭子口水利水电开发有限公司 | excitation system and control method |
| CN113395017A (en) * | 2021-06-16 | 2021-09-14 | 南方电网调峰调频发电有限公司 | Pumped-storage system, control method and storage medium |
-
2010
- 2010-12-03 CN CN2010206408026U patent/CN201877812U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107959280A (en) * | 2017-12-28 | 2018-04-24 | 贵州电网有限责任公司 | A kind of breaker body three phases un identical protection circuit and control method |
| CN107959280B (en) * | 2017-12-28 | 2023-06-16 | 贵州电网有限责任公司 | Three-phase inconsistent protection circuit of circuit breaker body |
| CN108831117A (en) * | 2018-07-14 | 2018-11-16 | 中铁二院工程集团有限责任公司 | High speed rail earthquake pre-warning system tractive power supply system contact net powers off interface arrangement |
| CN109003862A (en) * | 2018-08-01 | 2018-12-14 | 北京电子工程总体研究所 | A kind of relay normally open and normally-closed contact are transferred gating method |
| CN109150039A (en) * | 2018-10-19 | 2019-01-04 | 嘉陵江亭子口水利水电开发有限公司 | excitation system and control method |
| CN109150039B (en) * | 2018-10-19 | 2024-03-08 | 嘉陵江亭子口水利水电开发有限公司 | Excitation system and control method |
| CN113395017A (en) * | 2021-06-16 | 2021-09-14 | 南方电网调峰调频发电有限公司 | Pumped-storage system, control method and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20111203 |