CN103606888B - Reactive apparatus loop protection method and device - Google Patents
Reactive apparatus loop protection method and device Download PDFInfo
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- CN103606888B CN103606888B CN201310647677.XA CN201310647677A CN103606888B CN 103606888 B CN103606888 B CN 103606888B CN 201310647677 A CN201310647677 A CN 201310647677A CN 103606888 B CN103606888 B CN 103606888B
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- idle
- definite value
- duplexure
- predetermined current
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000001681 protective effect Effects 0.000 abstract description 8
- 238000004458 analytical method Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
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Abstract
The invention provides a kind of reactive apparatus loop protection method and device; the method comprises the fault current gathering idle duplexure; and judge whether described fault current is greater than predetermined current locking definite value; if be greater than described predetermined current locking definite value; then tripping total loop circuit breaker; if be less than described predetermined current locking definite value, then the on-load switch of idle duplexure described in tripping.The method is by arranging predetermined current locking definite value; according to the size of idle duplexure fault current; determine protection act outlet be action in on-load switch or action in the main breaker of total loop, make idle protective device realize selectivity tripping operation, effectively reduce failure removal scope.
Description
Technical field
The present invention relates to electric field, particularly relate to a kind of reactive apparatus loop protection method and device.
Background technology
110kV reactive apparatus loop switching is more frequent, therefore installed on-load switch at the idle duplexure of 110kV, total loop installing porcelain knob breaker, 110KV is idle when loop normally runs, utilize the on-load switch switching of duplexure idle, utilize the circuit breaker excision fault current of total loop.
In order to protect 110KV circuit, preventing fault current from causing damage to circuit, as shown in Figure 1, idle protective device being set in 110KV reactive apparatus.The existing short circuit current up to tens kA of every bar duplexure fault current; also the small area analysis of only tens A is had; the size of fault current do not distinguished by existing idle protective device, only arranges action outlet, namely when break down electric current time tripping total loop circuit breaker.The wavy trajectory of this non-selectivity, expands failure removal scope undoubtedly.
Therefore, need a kind of guard method for reactive apparatus loop now, idle protective device can be realized and realize selectivity tripping operation, reduce failure removal scope.
Summary of the invention
The invention provides a kind of reactive apparatus loop protection method and device, the method can make idle protective device realize selectivity tripping operation, effectively reduces failure removal scope.
To achieve these goals, the present invention adopts following technological means:
A kind of reactive apparatus loop protection method, comprising:
Gather the fault current of idle duplexure;
Judge whether described fault current is greater than predetermined current locking definite value;
If be greater than described predetermined current locking definite value, then tripping total loop circuit breaker;
If be less than described predetermined current locking definite value, then the on-load switch of idle duplexure described in tripping.
Preferably, also comprise while tripping total loop circuit breaker:
Malfunctioning and the solution starting main transformer branch circuit breaker presses off lock again.
Preferably, also comprise while the on-load switch of duplexure idle described in tripping:
Start branch bar failure protection and remove and press off lock again.
A kind of reactive apparatus loop protection device, comprising:
Collecting unit, for gathering the fault current of idle duplexure;
Judging unit, for judging whether described fault current is greater than predetermined current locking definite value;
First processing unit, if for being greater than described predetermined current locking definite value, then tripping total loop circuit breaker;
Second processing unit, if for being less than described predetermined current locking definite value, then the on-load switch of idle duplexure described in tripping.
The invention provides a kind of reactive apparatus loop protection method; the method comprises the fault current gathering idle duplexure; and judge whether described fault current is greater than predetermined current locking definite value; if be greater than described predetermined current locking definite value; then tripping total loop circuit breaker; if be less than described predetermined current locking definite value, then the on-load switch of idle duplexure described in tripping.
The method is by arranging predetermined current locking definite value; according to the size of idle duplexure fault current; determine protection act outlet be action in on-load switch or action in the main breaker of total loop, make idle protective device realize selectivity tripping operation, effectively reduce failure removal scope.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation in 110kV reactive apparatus loop;
The flow chart of Fig. 2 reactive apparatus loop protection method disclosed in the embodiment of the present invention;
The structural representation of Fig. 3 reactive apparatus loop protection device disclosed in the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 2, the invention provides a kind of reactive apparatus loop protection method, comprising:
Step S101: the fault current gathering idle duplexure;
Step S102: judge whether described fault current is greater than predetermined current locking definite value, if be greater than, enters step S103, if be less than, enters step S104;
Step S103: if be greater than described predetermined current locking definite value, then tripping total loop circuit breaker;
Step S104: if be less than described predetermined current locking definite value, then the on-load switch of idle duplexure described in tripping.
Also comprise while tripping total loop circuit breaker: the malfunctioning and solution starting main transformer branch circuit breaker presses off lock again.
Also comprise while the on-load switch of duplexure idle described in tripping: startup branch bar failure protection and releasing press off lock again.
Below foregoing is described in detail:
When idle duplexure breaks down; reactive apparatus gathers the fault current of idle duplexure; and the predetermined current locking definite value prestored by fault current therein compares; if fault current is greater than predetermined current locking definite value; then illustrate that fault current is excessive, because on-load switch can not cut off big current, therefore in order to protect idle duplexure; action outlet is acted on the circuit breaker of total loop by reactive apparatus, and starts the malfunctioning of main transformer branch circuit breaker and solution presses off lock again.
If fault current is less than predetermined current locking definite value; then illustrate that fault current is very little; in order to not expand the coverage of fault current, action outlet is acted on the on-load switch of idle duplexure by reactive apparatus, simultaneously starts branch bar failure protection and remove to press off lock again.
Reactive apparatus loop protection method provided by the invention; by arranging predetermined current locking definite value; according to the size of idle duplexure fault current; determine that protection act outlet is that action is in on-load switch or action in the main breaker of total loop; make idle protective device realize selectivity tripping operation, effectively reduce failure removal scope.
As shown in Figure 3, present invention also offers a kind of reactive apparatus loop protection device, comprising:
Collecting unit 100, for gathering the fault current of idle duplexure;
Judging unit 200, for judging whether described fault current is greater than predetermined current locking definite value;
First processing unit 300, if for being greater than described predetermined current locking definite value, then tripping total loop circuit breaker;
Second processing unit 400, if for being less than described predetermined current locking definite value, then the on-load switch of idle duplexure described in tripping.
Reactive apparatus loop protection device provided by the invention; by arranging predetermined current locking definite value; according to the size of idle duplexure fault current; determine that protection act outlet is that action is in on-load switch or action in the main breaker of total loop; make idle protective device realize selectivity tripping operation, effectively reduce failure removal scope.
If the function described in the present embodiment method using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computing equipment read/write memory medium.Based on such understanding, the part of the part that the embodiment of the present invention contributes to prior art or this technical scheme can embody with the form of software product, this software product is stored in a storage medium, comprising some instructions in order to make a computing equipment (can be personal computer, server, mobile computing device or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disc or CD etc. various can be program code stored medium.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiment, between each embodiment same or similar part mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (2)
1. a reactive apparatus loop protection method, is characterized in that, comprising:
Gather the fault current of idle duplexure;
Judge whether described fault current is greater than predetermined current locking definite value;
If be greater than described predetermined current locking definite value, then tripping total loop circuit breaker; And start the malfunctioning of main transformer branch circuit breaker and remove press off lock again;
If be less than described predetermined current locking definite value, then the on-load switch of idle duplexure described in tripping; And start branch bar failure protection and remove press off lock again.
2. a reactive apparatus loop protection device corresponding with reactive apparatus loop protection method according to claim 1, is characterized in that, comprising:
Collecting unit, for gathering the fault current of idle duplexure;
Judging unit, for judging whether described fault current is greater than predetermined current locking definite value;
First processing unit, if for being greater than described predetermined current locking definite value, then tripping total loop circuit breaker; And start the malfunctioning of main transformer branch circuit breaker and remove press off lock again;
Second processing unit, if for being less than described predetermined current locking definite value, then the on-load switch of idle duplexure described in tripping; And start branch bar failure protection and remove press off lock again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310647677.XA CN103606888B (en) | 2013-11-22 | 2013-11-22 | Reactive apparatus loop protection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310647677.XA CN103606888B (en) | 2013-11-22 | 2013-11-22 | Reactive apparatus loop protection method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103606888A CN103606888A (en) | 2014-02-26 |
| CN103606888B true CN103606888B (en) | 2016-04-13 |
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| CN201310647677.XA Active CN103606888B (en) | 2013-11-22 | 2013-11-22 | Reactive apparatus loop protection method and device |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202940570U (en) * | 2012-06-15 | 2013-05-15 | 沈阳华岩电力技术有限公司 | Grounding protection controller for 10kV capacitor reactive compensation device |
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2013
- 2013-11-22 CN CN201310647677.XA patent/CN103606888B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202940570U (en) * | 2012-06-15 | 2013-05-15 | 沈阳华岩电力技术有限公司 | Grounding protection controller for 10kV capacitor reactive compensation device |
Non-Patent Citations (1)
| Title |
|---|
| 特高压110kV 并联电容器组投切问题的解决办法和新型投切开关的应用;田秋松等;《河南电力》;20130630;第41卷(第2期);1-8 * |
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| Publication number | Publication date |
|---|---|
| CN103606888A (en) | 2014-02-26 |
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Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: CHINA POWER ENGINEERING CONSULTING (GROUP) CORPORATION Applicant after: ELECTRIC POWER PLANNING & ENGINEERING INSTITUTE Applicant after: Co., Ltd of Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Corporation Applicant after: Co., Ltd of Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation Applicant after: Co., Ltd of Huabei Power Design Inst., China Power Engineering Consulting Group Applicant after: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Applicant after: China Power Engineering Consulting Group Southwest Electric Power Design Institute Co., Ltd. Applicant after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: China Power Engineering Consulting Group Corporation Applicant before: ELECTRIC POWER PLANNING & ENGINEERING INSTITUTE Applicant before: Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Cor Applicant before: Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation Applicant before: Huabei Power Design Inst., China Power Engineering Consulting Group Applicant before: Northwest Electric Power Design Institute, China Power Engineering Consulting Group Corporation Applicant before: Southwest Electric Power Design Institute of China Power Engineering Consulting Group Corporation Applicant before: North China Electric Power Design Institute of China Power Engineering Consulting Group Corporation |
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