CN103280786A - Method for using two sets of line protection devices and one set of reclosure device cooperatively - Google Patents
Method for using two sets of line protection devices and one set of reclosure device cooperatively Download PDFInfo
- Publication number
- CN103280786A CN103280786A CN2013102427721A CN201310242772A CN103280786A CN 103280786 A CN103280786 A CN 103280786A CN 2013102427721 A CN2013102427721 A CN 2013102427721A CN 201310242772 A CN201310242772 A CN 201310242772A CN 103280786 A CN103280786 A CN 103280786A
- Authority
- CN
- China
- Prior art keywords
- protective device
- communication
- jumping
- contact
- reclosing
- 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.)
- Pending
Links
Images
Abstract
Disclosed is a method for using two sets of line protection devices and one set of reclosure device cooperatively. The method comprises the steps of establishing an inquiring signal end, establishing an answering signal end and establishing a communication triple trip loop, wherein the steps are executed in sequence. According to the method for using the two sets of line protection devices and the one set of reclosure device cooperatively, the communication triple trip loop is added to enable the method to be realized easily, simply and effectively, and the problem that according to a single-trip method, an automatic reclosure device is damaged and can not be reclosed due to certain reasons, a line protection device N can not trip due to outage or faults, an only remaining line protection device M still trips in a phase selection mode under the condition of a single-phase fault, the automatic reclosure device can not move at the moment, and therefore long-time open-phase operation of a switch is caused is solved. When the reclosure device is changed to be triple or out of service, a communication triple trip pressing plate of a protection device M is not needed any more, pressing plate operation is eliminated, and working intensity is relieved.
Description
Technical field
The invention belongs to electric power power transmission and transformation control technology field, particularly relate to the method that a kind of two cover route protections and a cover reclosing are used.
Background technology
The overhead transmission line fault mostly is the fault of " instantaneity ", and after route protection moved the circuit breaker disconnection rapidly, the insulation level of fault point can recover voluntarily, and fault disappears immediately.At this moment, if the line-breaker that disconnects is closed again, just can recover normal power supply.
In addition, " permanent fault " arranged also, " permanent fault " after circuit was disconnected, they remained existence, even power turn-on can not recover normal power supply.
Therefore, adopted auto recloser in electric power system, its effect is after tripping, can control a kind of device that circuit breaker closes again by relaying protection action or other unartificial operation automatically when circuit breaker.
Auto recloser has improved the reliability of power supply greatly in application on power system, reduces the number of times of line outage.Adopt auto recloser at ultra-high-tension power transmission line, can improve the stability of electric power system paired running, thereby improve transmission capacity.To the mistrip that circuit breaker itself is bad owing to mechanism or the protective relaying maloperation work causes, also can play the effect of correction.
Circuit interconnect pattern when Fig. 1 is used with a cover auto recloser for the cover of two in prior art route protections, the circuit theory diagrams when Fig. 2 is used for the cover route protections of two in the prior art and overlap auto recloser.
At present, the protection of 220kV circuit one general configuration double detour road, each overlaps protective device and all has the reclosing function, and the North China net requires only to drop into a wherein cover reclosing function, this just relates to the matching problem of two cover route protections and a cover auto recloser.Contain the route protection that drops into the reclosing function and cooperate inner realization of these line protective devices with auto recloser, do not have external cabling; The another set of route protection that does not drop into the reclosing function is realized by external cabling that with cooperating then of auto recloser specifically wiring is as shown in Figure 1:
Protective device M is the first cover route protection, and its inner reclosing function is stopped using; Protective device N is the second cover route protection, and its inner reclosing function drops into; Start and locking common port loop 021, single-hop start reclosing loop 051, three and jump and start reclosing loop 053, locking reclosing loop 035 (as shown in Figure 2) is in order to realize cooperating of protective device M and auto recloser.
Normally opened contact TJ-1 is the tripping relay contact, and route protection is jumped arbitrary phase, and this relay all moves, and single-hop starts reclosing.
Normally opened contact TJABC-1 is three jumping relay contacts, and route protection is jumped three-phase, this actuating of relay, and three jump the startup reclosings.
Normally opened contact BCJ-1 is locking multiple switching relay contact, throwing by corresponding control word (two sections of distances are closed heavily, heterogeneous fault close and heavily wait control word) is moved back, (two sections actions of distance, the heterogeneous fault of circuit etc.) this actuating of relay under corresponding situation, the locking reclosing.
Under this wiring situation; if need inactive line reclosing or reclosing mode to change triple modes into; need the reclosing handgrip of protective device N is beaten to rest position or triple mode; and " linking up three jumps " pressing plate of protective device M is dropped into, and cover protection this moments two could all not selected tripping operation mutually and direct three jumpings.
And under the substance mode; if auto recloser damage for a certain reason (as the protective device power insert damage, switch pressure is low, charging less than etc.) can't overlap; and line protective devices N stoppage in transit or fault and can't trip; under existing wiring situation; only Sheng line protective devices M will select tripping operation mutually when single-phase fault; and this moment, auto recloser can't move; cause the long-time open-phase operation of switch, the non-whole phase protection action tripping that can only rely on time-delay (2S) is two-phase in addition.
The open-phase operation meeting makes electrical network produce negative phase-sequence and zero-sequence current (voltage), makes the sending out of electrical network, suffers damage for, power consumption equipment, and is especially huge to generator harm; And because the open-phase operation time long (2S), when line load was big, the zero-sequence current that open-phase operation produces was bigger, may cause adjacent lines zero-sequenceprotection misoperation, so this is unallowed.
By statistics, in the various defectives of protective device, power insert damages and accounts for quite a few, so there is big probability in the generation of above-mentioned situation.
Summary of the invention
In order to address the above problem, the method that the object of the present invention is to provide a kind of two cover route protections and a cover reclosing to be used.
In order to achieve the above object, two cover route protections provided by the invention comprise the following step of execution in order with the method that is used of cover reclosing:
Step 2, the S02 stage of setting up the answer signal end: in protective device M side, set up the answer signal end, contact 025 is gone in heavy three trippings of closing of protective device M be connected with the satisfied communication three jumping condition output contacts of protective device N side;
Step 3, the S03 stage of setting up communication three rebound roads: set up communication three rebound roads in protective device M side; the satisfied communication three jumping condition output signals that are about to protective device N side are incorporated in the jumping three-phase control loop of line protective devices M side, make the jumping three-phase action of protective device M side be controlled by the satisfied communication three jumping condition output signals of protective device N side.
Communication three rebound roads in the described step 3 comprise: three of protective device M side is jumped relay coil ST and three and is jumped the normally opened contact ST1 that continues, and normally closed contact GTST is jumped in the communication three of protective device N side; Wherein: the positive supply+KM of protective device M side goes into contact 021 by communication three trippings of protective device N side and is connected with communication three jumping normally closed contact GTST one end of protective device N side, the other ends of communication three jumping normally closed contact GTST are gone into contact 025 by heavy three trippings of closing of protective device M and are connected with three ends of jumping relay coil ST of protective device M side, and three other ends of jumping relay coil ST are connected with the negative supply-KM of protective device M side; 3 two end points of jumping relay normally open contact ST1 of protective device M side are linked among the jumping three-phase control loop of protective device M side.
The method that two cover route protections provided by the invention and a cover reclosing are used has increased by one and has linked up three rebound roads; both dealt with problems; effectively simple again; be easy to realize that solved under the substance mode, auto recloser damages for a certain reason and can't overlap; line protective devices N stoppage in transit or fault and can't trip; only Sheng line protective devices M still selects tripping operation mutually when single-phase fault, and this moment, auto recloser can't move, and caused the problem of the long-time open-phase operation of switch.When to change reclosing mode be triple or inactive, do not need to drop into again " linking up three jumps " pressing plate of protective device M, reduce clamp operation, reduce working strength.
Description of drawings
Circuit interconnect pattern when Fig. 1 is used for two cover route protections and in the prior art overlap auto recloser.
Circuit theory diagrams when Fig. 2 is used for two cover route protections and in the prior art overlap auto recloser.
Fig. 3 overlaps the circuit interconnect pattern that method that reclosing is used adopts for two cover route protections provided by the invention and.
Fig. 4 overlaps the circuit theory diagrams that method that reclosing is used adopts for two cover route protections provided by the invention and.
Embodiment
Below in conjunction with the drawings and specific embodiments two cover route protections provided by the invention and being overlapped the method that reclosing is used is elaborated.
As shown in Figure 3, two cover route protections provided by the invention comprise the following step of execution in order with the method that is used of cover reclosing:
Step 2, the S02 stage of setting up the answer signal end: in protective device M side, set up the answer signal end, contact 025 is gone in heavy three trippings of closing of protective device M be connected with the satisfied communication three jumping condition output contacts of protective device N side;
Step 3, the S03 stage of setting up communication three rebound roads: set up communication three rebound roads in protective device M side; the satisfied communication three jumping condition output signals that are about to protective device N side are incorporated in the jumping three-phase control loop of line protective devices M side, make the jumping three-phase action of protective device M side be controlled by the satisfied communication three jumping condition output signals of protective device N side.
As shown in Figure 4, described communication three rebound roads comprise: three of protective device M side is jumped relay coil ST and three and is jumped the normally opened contact ST1 that continues, and normally closed contact GTST is jumped in the communication three of protective device N side; Wherein: the positive supply+KM of protective device M side goes into contact 021 by communication three trippings of protective device N side and is connected with communication three jumping normally closed contact GTST one end of protective device N side, the other ends of communication three jumping normally closed contact GTST are gone into contact 025 by heavy three trippings of closing of protective device M and are connected with three ends of jumping relay coil ST of protective device M side, and three other ends of jumping relay coil ST are connected with the negative supply-KM of protective device M side; 3 two end points of jumping relay normally open contact ST1 of protective device M side are linked among the jumping three-phase control loop of protective device M side; Three jump when continuing normally opened contact ST1 closure, can enable and jump three-phase control function.
The method that two cover route protections provided by the invention and a cover reclosing are used, increase protective device N and linked up the loop that protective device M three jumps, the normally closed contact GTST of protective device N side, insert heavy three trippings of closing of protective device M and go into this junction closure when following situation: the charging of (1) reclosing less than; (2) reclosing is stopped using; (3) switch low-voltage dead lock reclosing; (4) the triple modes of reclosing; (5) reclosing device abnormality alarming.
After increasing this loop; can't normally move at auto recloser (as the protection power insert damage, charging less than etc.) time; protective device N internal relay GTST dead electricity; normally closed contact GTST closure; closing heavy three trippings for line protective devices M goes into; making three of protective device M side jump relay coil ST gets; three jump the normally opened contact ST1 closure that continues; jump the three-phase function thereby directly enable; make protective device M direct three jumpings when single-phase fault; the long-time open-phase operation of circuit breaker is avoided in no longer choosing tripping operation mutually.
Behind this programme increase loop, carry out fault simulation: protective device N protection power supply is disconnected (analog line protective device N and reclosing fault), the simulation single-phase fault, protective device M direct three jumps, and selects tripping operation mutually, realizes re-set target.
Claims (2)
1. a cover route protection and the method that is used of cover reclosing, it is characterized in that: described method comprises the following step of execution in order:
Step 1, the S01 stage of setting up the request signal end: in protective device M side, set up the request signal end, go into contact 021 with communication three trippings of protective device N side and be connected;
Step 2, the S02 stage of setting up the answer signal end: in protective device M side, set up the answer signal end, contact 025 is gone in heavy three trippings of closing of protective device M be connected with the satisfied communication three jumping condition output contacts of protective device N side;
Step 3, the S03 stage of setting up communication three rebound roads: set up communication three rebound roads in protective device M side; the satisfied communication three jumping condition output signals that are about to protective device N side are incorporated in the jumping three-phase control loop of line protective devices M side, make the jumping three-phase action of protective device M side be controlled by the satisfied communication three jumping condition output signals of protective device N side.
2. two cover route protections according to claim 1 and overlap the method that reclosing is used, it is characterized in that: the communication three rebound roads in the described step 3 comprise: three of protective device M side is jumped relay coil ST and three and is jumped the normally opened contact ST1 that continues, and normally closed contact GTST is jumped in the communication three of protective device N side; Wherein: the positive supply+KM of protective device M side goes into contact 021 by communication three trippings of protective device N side and is connected with communication three jumping normally closed contact GTST one end of protective device N side, the other ends of communication three jumping normally closed contact GTST are gone into contact 025 by heavy three trippings of closing of protective device M and are connected with three ends of jumping relay coil ST of protective device M side, and three other ends of jumping relay coil ST are connected with the negative supply-KM of protective device M side; 3 two end points of jumping relay normally open contact ST1 of protective device M side are linked among the jumping three-phase control loop of protective device M side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102427721A CN103280786A (en) | 2013-06-19 | 2013-06-19 | Method for using two sets of line protection devices and one set of reclosure device cooperatively |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102427721A CN103280786A (en) | 2013-06-19 | 2013-06-19 | Method for using two sets of line protection devices and one set of reclosure device cooperatively |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103280786A true CN103280786A (en) | 2013-09-04 |
Family
ID=49063262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102427721A Pending CN103280786A (en) | 2013-06-19 | 2013-06-19 | Method for using two sets of line protection devices and one set of reclosure device cooperatively |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103280786A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470912A (en) * | 2014-09-10 | 2016-04-06 | 国家电网公司 | Double reclosing protection processing method, device and system |
| CN110460010A (en) * | 2019-08-05 | 2019-11-15 | 深圳供电局有限公司 | Reclosing control method, device, line protective devices and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040130839A1 (en) * | 2002-05-07 | 2004-07-08 | Zhiqian Bo | Power line protection |
| CN201174623Y (en) * | 2008-02-26 | 2008-12-31 | 浙江省电力试验研究院 | Protection covering board mechanism under GOOSE mechanism |
| CN202797917U (en) * | 2012-09-06 | 2013-03-13 | 清远电力设计有限公司 | Circuit protection system based on reclosure split-phase locking technology |
-
2013
- 2013-06-19 CN CN2013102427721A patent/CN103280786A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040130839A1 (en) * | 2002-05-07 | 2004-07-08 | Zhiqian Bo | Power line protection |
| CN201174623Y (en) * | 2008-02-26 | 2008-12-31 | 浙江省电力试验研究院 | Protection covering board mechanism under GOOSE mechanism |
| CN202797917U (en) * | 2012-09-06 | 2013-03-13 | 清远电力设计有限公司 | Circuit protection system based on reclosure split-phase locking technology |
Non-Patent Citations (2)
| Title |
|---|
| 刘宁波: "220kV线路保护沟通三跳功能的分析探讨", 《中小企业管理与科技》, 11 September 2012 (2012-09-11) * |
| 唐剑东等: "线路保护沟通三跳功能分析及探讨", 《湖南电力》, vol. 30, no. 6, 31 December 2010 (2010-12-31) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470912A (en) * | 2014-09-10 | 2016-04-06 | 国家电网公司 | Double reclosing protection processing method, device and system |
| CN110460010A (en) * | 2019-08-05 | 2019-11-15 | 深圳供电局有限公司 | Reclosing control method, device, line protective devices and system |
| CN110460010B (en) * | 2019-08-05 | 2022-07-22 | 深圳供电局有限公司 | Reclosing control method and device, and line protection device and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zamani et al. | A communication-assisted protection strategy for inverter-based medium-voltage microgrids | |
| CN109861180B (en) | Bus differential protection locking spare power automatic switching protection method for preventing dead zone fault of sectional breaker | |
| CN110190591B (en) | Automatic processing method and system for single-phase earth fault | |
| CN109193552B (en) | Intelligent distributed protection self-healing control system and configuration method | |
| Zamani et al. | A communication-based strategy for protection of microgrids with looped configuration | |
| CN102611082B (en) | Self-adaptive feeder neighborhood interactive fault-tolerant relay protection method for power distribution network | |
| US11489365B2 (en) | Non-three-phase fault isolation and restoration systems | |
| CN104701825A (en) | Quick protection method applicable to intelligent distribution network | |
| CN110768220B (en) | Protection method and system for single-pole grounding fault of direct-current line of flexible direct-current power distribution network | |
| CN103746356A (en) | Digital communication current protection technology based on IEC 61850 protocol | |
| CN204464979U (en) | Breaker body non-whole phase protection loop | |
| CN103066575A (en) | Control method of rapidly finding fault | |
| CN103280786A (en) | Method for using two sets of line protection devices and one set of reclosure device cooperatively | |
| CN113032978A (en) | Self-adaptive comprehensive FA function logic control simulation method | |
| CN202488131U (en) | Grounding conversion device for neutral points of power distribution network | |
| CN110098599A (en) | A kind of fault handling method and system of overhead lines combined with cable | |
| CN110912092A (en) | 3-66 kV line disconnection protection method for comparing line voltages on two sides of line | |
| CN202797917U (en) | Circuit protection system based on reclosure split-phase locking technology | |
| CN201860172U (en) | Automatic looped network type distribution network based on reclosers | |
| CN205508744U (en) | Circuit breaker control system | |
| CN213754084U (en) | Dual-power supply system adopting power supplies with different grounding modes | |
| CN203301138U (en) | Switch-on three-tripping loop used in cooperated utilization of two sets of line protection units and one set of reclosing unit | |
| CN107026433B (en) | Rapid protection system and method for current collection circuit of new energy power station | |
| CN209200656U (en) | A kind of current quick-breaking prevents station with becoming overstepping device in conjunction with zero-sequenceprotection | |
| CN107086552B (en) | Protection circuit of extended cell wiring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130904 |