CN202405853U - 110-KV double-circuit parallel running line reclosing input line - Google Patents
110-KV double-circuit parallel running line reclosing input line Download PDFInfo
- Publication number
- CN202405853U CN202405853U CN2011205260030U CN201120526003U CN202405853U CN 202405853 U CN202405853 U CN 202405853U CN 2011205260030 U CN2011205260030 U CN 2011205260030U CN 201120526003 U CN201120526003 U CN 201120526003U CN 202405853 U CN202405853 U CN 202405853U
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- reclosing
- circuit
- line
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- circuit breaker
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Abstract
The utility model relates to the technical field of running of electrical equipment, and discloses a 110-KV double-circuit parallel running line reclosing input line. The 110-KV double-circuit parallel running line reclosing input line comprises a running line L1 and a running line L2, wherein the power sides of the running line L1 and the running line L2 are connected with a bus 110-KV M1; the load sides of the running line L1 and the running line L2 are connected with a bus 110-KV M2; the reclosing mode of a breaker D1 on the power side of the line L1 is a reclosing switching checking non-voltage mode W, and the reclosing mode of a breaker D2 on the load side is a reclosing switching asynchronous mode F; and the reclosing mode of the power side of the running line L2 is a reclosing switching checking non-voltage mode W, and a breaker D4 of the load side is a reclosing switching asynchronous mode F. By using the 110-KV double-circuit parallel running line reclosing input line, power supply to a user can be recovered in time, the reliable power supply to the user can be guaranteed, loss is reduced, and the power supply reliability of a power system can be improved.
Description
[technical field]
The utility model relates to power equipment running technology field, relates in particular to the two paired running circuit reclosings that return of a kind of 110KV and drops into circuit.
[background technology]
At present, electrical network 110KV single supply paired running double-circuit line is meant by twice outlet paired running band customer charges on the same electric pressure bus of same transformer station.
110KV single supply paired running double-circuit line reclosing investing method; Circuit LI mains side circuit breaker D1, circuit L2 mains side circuit breaker D3 reclosing are thrown the no pressure mode W of inspection; Circuit LI load side circuit breaker D2 reclosing is thrown non-synchronizing mode F; Circuit L2 load side circuit breaker D4 reclosing is thrown inspection synchronizing mode T, like Fig. 1.
Circuit L1, circuit L2 paired running; As circuit L1, when circuit L2 simultaneously transient fault takes place, circuit L1 mains side circuit breaker D1, circuit LI load side circuit breaker D2, circuit L2 mains side circuit breaker D3, circuit L2 load side circuit breaker D4 protect would trip.At this moment, circuit LI mains side circuit breaker D1 reclosing mode is the no pressure mode W of inspection, after the inspection circuit does not have pressure; The action of circuit breaker D1 reclosing; Because of line fault is transient fault, fault is eliminated on the circuit, and circuit possesses the electric condition of sending; So circuit LI mains side circuit breaker D1 reclosing moves successfully, send electricity normal to circuit L1; Circuit L2 mains side circuit breaker D3 reclosing mode is the no pressure mode W of inspection; After the inspection circuit did not have pressure, the action of circuit breaker D3 reclosing was because of line fault is transient fault; Fault is eliminated on the circuit; Circuit possesses and send electric condition, so circuit L2 mains side circuit breaker D3 reclosing moves successfully, send electricity normal to circuit L2.This moment, circuit LI load side circuit breaker D2 reclosing mode was non-synchronizing mode F; Meet reclosing mode F operation condition this moment, and circuit breaker D2 should overlap, but because other factors that have nothing to do with reclosing mode of the mechanism of short-circuiting device D2 own or secondary connection or the like; Cause circuit breaker D2 unsuccessful reclosing; Circuit LI load side circuit breaker D2 is at open position, and circuit L1 send electricity unsuccessful to load side bus M2, load side bus M2 no-voltage; And circuit L2 load side circuit breaker D4 reclosing is inspection synchronizing mode T, and one of key factor that can circuit breaker D4 successful reclosing depends on that circuit L2 has voltage and load side bus M2 that two conditions of voltage are arranged, because of circuit L1 load side circuit breaker D2 unsuccessful reclosing; Load side bus M2 no-voltage; Do not meet circuit L2 load side circuit breaker D4 reclosing inspection synchronizing mode T and overlap condition,, cause circuit L2 to send electricity unsuccessful load side bus M2 so the action of circuit breaker D4 reclosing is unsuccessful; Load side bus M2 is no-voltage still; Cause the user to have a power failure, load loss reduces the power system power supply reliability.
[summary of the invention]
In order to overcome the deficiency in the background technology, the utility model provides the two paired running circuit reclosings that return of a kind of 110KV to drop into circuit,
In order to realize the foregoing invention purpose, the utility model adopts technical scheme following:
The two paired running circuit reclosings that return of a kind of 110KV drop into circuit; Comprise: working line L1, working line L2; Said working line L1 links to each other with bus 110KV M1 with the mains side of working line L2, and said working line L1 links to each other with bus 110KV M2 with the load side of working line L2; Said working line L1 is composed in series by mains side circuit breaker D1 and load side circuit breaker D2, and said working line L2 is composed in series by mains side circuit breaker D3 and load side circuit breaker D4;
Wherein, circuit LI mains side circuit breaker D1 is that reclosing is thrown the no pressure mode W of inspection, and load side circuit breaker D2 is that reclosing is thrown non-synchronizing mode F;
Wherein, the mains side D3 of working line L2 is that reclosing is thrown the no pressure mode W of inspection, and load side circuit breaker D4 is that reclosing is thrown non-synchronizing mode F.
Owing to adopt aforesaid technical scheme, the utlity model has following superiority:
The two paired running circuit reclosings that return of a kind of 110KV drop into circuit, can in time recover to send electricity to the user, guarantee the reliable power supply to the user, have reduced loss, have improved the power supply reliability of electric power system.
[description of drawings]
Fig. 1 is two paired running circuit reclosing input method and the input conspectuses of returning of 110KV;
Fig. 2 is the operating circuit block diagram of Fig. 1;
Fig. 3 is two paired running circuit reclosing input method and the input conspectuses of returning of 110KV;
Fig. 4 is the operating circuit block diagram of Fig. 3;
Among the figure: W: the no pressure mode of reclosing inspection; F: the non-synchronizing mode of reclosing; T: reclosing inspection synchronizing mode; H: circuit breaker successful reclosing; Y: circuit or bus have voltage; M: bus;
D: circuit breaker; L: circuit.
[embodiment]
Like Fig. 1,2,3, shown in 4; The two paired running circuit reclosings that return of a kind of 110KV drop into circuit; Comprise: working line L1, working line L2; Said working line L1 links to each other with bus 110KV M1 with the mains side of working line L2, and said working line L1 links to each other with bus 110KV M2 with the load side of working line L2; Said working line L1 is composed in series by mains side circuit breaker D1 and load side circuit breaker D2, and said working line L2 is composed in series by mains side circuit breaker D3 and load side circuit breaker D4; It is characterized in that:
Wherein, circuit LI mains side circuit breaker D1 is that reclosing is thrown the no pressure mode W of inspection, and load side circuit breaker D2 is that reclosing is thrown non-synchronizing mode F;
Wherein, the mains side D3 of working line L2 is that reclosing is thrown the no pressure mode W of inspection, and load side circuit breaker D4 is that reclosing is thrown non-synchronizing mode F.
During work; For 110KV single supply paired running double-circuit line; Change its circuit and receive electric side switch reclosures investing method; Circuit LI mains side circuit breaker D1, circuit L2 mains side circuit breaker D3 reclosing are thrown the no pressure mode W of inspection, and circuit LI load side circuit breaker D2, circuit L2 load side circuit breaker D4 reclosing are thrown non-synchronizing mode F, like Fig. 2.Circuit L1, circuit L2 paired running; As circuit L1, when circuit L2 simultaneously transient fault takes place, circuit L1 mains side circuit breaker D1, circuit LI load side circuit breaker D2, circuit L2 mains side circuit breaker D3, circuit L2 load side circuit breaker D4 protect would trip.At this moment, circuit LI mains side circuit breaker D1 reclosing mode is the no pressure mode W of inspection, after the inspection circuit does not have pressure; The action of circuit breaker D1 reclosing; Because of line fault is transient fault, fault is eliminated on the circuit, and circuit possesses the electric condition of sending; So circuit LI mains side circuit breaker D1 reclosing moves successfully, send electricity normal to circuit L1; Circuit L2 mains side circuit breaker D3 reclosing mode is the no pressure mode W of inspection; After the inspection circuit did not have pressure, the action of circuit breaker D3 reclosing was because of line fault is transient fault; Fault is eliminated on the circuit; Circuit possesses and send electric condition, so circuit L2 mains side circuit breaker D3 reclosing moves successfully, send electricity normal to circuit L2.This moment, circuit LI load side circuit breaker D2 reclosing mode was non-synchronizing mode F; Meet reclosing mode F operation condition this moment, and circuit breaker D2 should overlap, but because other factors that have nothing to do with reclosing mode of the mechanism of short-circuiting device D2 own or secondary connection or the like; Cause circuit breaker D2 unsuccessful reclosing; Circuit LI load side circuit breaker D2 is at open position, and circuit L1 send electricity unsuccessful to load side bus M2, load side bus M2 no-voltage; This moment, circuit L2 load side circuit breaker D2 reclosing mode was non-synchronizing mode F, did not promptly examine and determine mode, need not examine and determine circuit L2 and bus M2 has voltage; Meet reclosing mode F operation condition, circuit breaker D4 reclosing moves successfully, send the electricity success to load side bus M2; In time the user has been recovered to send; Guaranteed reliable power supply, reduced loss, improved the power supply reliability of electric power system the user.
Claims (1)
1. the two paired running circuit reclosings that return of 110KV drop into circuit; Comprise: working line L1, working line L2; Said working line L1 links to each other with bus 110KV M1 with the mains side of working line L2, and said working line L1 links to each other with bus 110KV M2 with the load side of working line L2; Said working line L1 is composed in series by mains side circuit breaker D1 and load side circuit breaker D2, and said working line L2 is composed in series by mains side circuit breaker D3 and load side circuit breaker D4; It is characterized in that:
Wherein, circuit LI mains side circuit breaker D1 is that reclosing is thrown the no pressure mode W of inspection, and load side circuit breaker D2 is that reclosing is thrown non-synchronizing mode F;
Wherein, the mains side D3 of working line L2 is that reclosing is thrown the no pressure mode W of inspection, and load side circuit breaker D4 is that reclosing is thrown non-synchronizing mode F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205260030U CN202405853U (en) | 2011-12-15 | 2011-12-15 | 110-KV double-circuit parallel running line reclosing input line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205260030U CN202405853U (en) | 2011-12-15 | 2011-12-15 | 110-KV double-circuit parallel running line reclosing input line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202405853U true CN202405853U (en) | 2012-08-29 |
Family
ID=46703470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205260030U Expired - Fee Related CN202405853U (en) | 2011-12-15 | 2011-12-15 | 110-KV double-circuit parallel running line reclosing input line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202405853U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437639A (en) * | 2011-12-15 | 2012-05-02 | 河南省电力公司洛阳供电公司 | Method for putting reclosing of 110 KV double lines with parallel operation into service and line for putting reclosing into service |
| CN102437639B (en) * | 2011-12-15 | 2016-12-14 | 河南省电力公司洛阳供电公司 | 110KV double back paired running circuit re-switching puts into method and puts into circuit |
| CN108011360A (en) * | 2017-12-30 | 2018-05-08 | 长园深瑞继保自动化有限公司 | Double loop round and round quickly unlinks method |
| CN113869723A (en) * | 2021-09-27 | 2021-12-31 | 广东电网有限责任公司 | Double-circuit risk monitoring method, device, medium and equipment |
-
2011
- 2011-12-15 CN CN2011205260030U patent/CN202405853U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437639A (en) * | 2011-12-15 | 2012-05-02 | 河南省电力公司洛阳供电公司 | Method for putting reclosing of 110 KV double lines with parallel operation into service and line for putting reclosing into service |
| CN102437639B (en) * | 2011-12-15 | 2016-12-14 | 河南省电力公司洛阳供电公司 | 110KV double back paired running circuit re-switching puts into method and puts into circuit |
| CN108011360A (en) * | 2017-12-30 | 2018-05-08 | 长园深瑞继保自动化有限公司 | Double loop round and round quickly unlinks method |
| CN108011360B (en) * | 2017-12-30 | 2019-04-16 | 长园深瑞继保自动化有限公司 | Double loop round and round quickly unlinks method |
| CN113869723A (en) * | 2021-09-27 | 2021-12-31 | 广东电网有限责任公司 | Double-circuit risk monitoring method, device, medium and equipment |
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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: 20120829 Termination date: 20121215 |