CN103606888A - Reactive power compensation equipment circuit protecting method and device - Google Patents
Reactive power compensation equipment circuit protecting method and device Download PDFInfo
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- CN103606888A CN103606888A CN201310647677.XA CN201310647677A CN103606888A CN 103606888 A CN103606888 A CN 103606888A CN 201310647677 A CN201310647677 A CN 201310647677A CN 103606888 A CN103606888 A CN 103606888A
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- tripping
- idle
- duplexure
- definite value
- predetermined current
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000001681 protective effect Effects 0.000 description 7
- 230000005684 electric field Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
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Abstract
The invention provides a reactive power compensation equipment circuit protecting method and device. The method comprises the steps of collecting failure current of a reactive power branch circuit, judging whether the failure current is larger than the preset current lockout fixed value, tripping off a main circuit breaker if the failure current is larger than the preset current lockout fixed value, and tripping off a load switch of the reactive power branch circuit if the failure current is smaller than the preset current lockout fixed value. According to the method, the preset current lockout fixed value is set, a protection motion port acting on the load switch or acting on a main circuit breaker of the main circuit is determined according to the magnitude of the failure current of the reactive power branch circuit, and the reactive power protection device is made to realize selective tripping operation, so that the failure cut-off range is effectively reduced.
Description
Technical field
The present invention relates to electric field, relate in particular to a kind of reactive apparatus loop protection method and device.
Background technology
110kV reactive apparatus loop switching is more frequent, therefore at the idle duplexure of 110kV, installed on-load switch, total loop installing porcelain knob breaker, 110KV is idle when loop normally moves, 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, prevent that fault current from causing damage to circuit, as shown in Figure 1, idle protective device is set in 110KV reactive apparatus.Every existing short circuit current up to tens kA of duplexure fault current; also there is the only little electric current of tens A; existing idle protective device is not distinguished the size of fault current, and action outlet, i.e. a tripping total loop circuit breaker when breaking down electric current are only set.The tripping operation mode of this non-selectivity, has expanded failure removal scope undoubtedly.
Therefore, need now a kind of guard method for reactive apparatus loop, can realize idle protective device 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, has effectively reduced failure removal scope.
To achieve these goals, the present invention adopts following technological means:
A 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, tripping total loop circuit breaker;
If be less than described predetermined current locking definite value, the on-load switch of idle duplexure described in tripping.
Preferably, in tripping total loop circuit breaker, also comprise:
Malfunctioning and the solution that starts main transformer branch circuit breaker presses off lock again.
Preferably, in the on-load switch of idle duplexure described in tripping, also comprise:
Start branch bar failure protection and remove and press off again lock.
A 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;
The first processing unit, if for being greater than described predetermined current locking definite value, tripping total loop circuit breaker;
The second processing unit, if for being less than described predetermined current locking definite value, 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 that gathers 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; tripping total loop circuit breaker; if be less than described predetermined current locking definite value, 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 and protect action outlet move in on-load switch or move in the main breaker of total loop, make idle protective device realize selectivity tripping operation, effectively reduced 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, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation in 110kV reactive apparatus loop;
Fig. 2 is the flow chart of the disclosed reactive apparatus loop protection of embodiment of the present invention method;
Fig. 3 is the structural representation of the disclosed reactive apparatus loop protection of embodiment of the present invention device.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining 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 that gathers idle duplexure;
Step S102: judge whether described fault current is greater than predetermined current locking definite value, enters step S103 if be greater than, and enters step S104 if be less than;
Step S103: if be greater than described predetermined current locking definite value, tripping total loop circuit breaker;
Step S104: if be less than described predetermined current locking definite value, the on-load switch of idle duplexure described in tripping.
In tripping total loop circuit breaker, also comprise: the malfunctioning and solution that starts main transformer branch circuit breaker presses off lock again.
In the on-load switch of idle duplexure described in tripping, also comprise: startup branch bar failure protection and releasing press off lock again.
Below foregoing is elaborated:
When idle duplexure breaks down; reactive apparatus gathers the fault current of idle duplexure; and the inner pre-stored predetermined current locking definite value of fault current self is compared; if fault current is greater than predetermined current locking definite value; illustrate that fault current is excessive, because on-load switch can not cut off large electric current, therefore in order to protect idle duplexure; reactive apparatus acts on the circuit breaker of total loop by action outlet, and the malfunctioning and solution that starts main transformer branch circuit breaker presses off lock again.
If fault current is less than predetermined current locking definite value; illustrate that fault current is very little; in order not expand the coverage of fault current, reactive apparatus acts on action outlet the on-load switch of idle duplexure, starts branch bar failure protection simultaneously and remove to press off again lock in this.
Reactive apparatus loop protection method provided by the invention; by predetermined current locking definite value is set; according to the size of idle duplexure fault current; determine and protect action outlet move in on-load switch or move in the main breaker of total loop; make idle protective device realize selectivity tripping operation, effectively reduced failure removal scope.
As shown in Figure 3, the present invention also provides 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;
The first processing unit 300, if for being greater than described predetermined current locking definite value, tripping total loop circuit breaker;
The second processing unit 400, if for being less than described predetermined current locking definite value, the on-load switch of idle duplexure described in tripping.
Reactive apparatus loop protection device provided by the invention; by predetermined current locking definite value is set; according to the size of idle duplexure fault current; determine and protect action outlet move in on-load switch or move in the main breaker of total loop; make idle protective device realize selectivity tripping operation, effectively reduced failure removal scope.
If the function described in the present embodiment method usings that the form of SFU software functional unit realizes and during as production marketing independently or use, can be stored in a computing equipment read/write memory medium.Understanding based on such, the part that the embodiment of the present invention contributes to prior art or the part of this technical scheme can embody with the form of software product, this software product is stored in a storage medium, comprise that some instructions are with so that a computing equipment (can be personal computer, server, mobile computing device or the network equipment etc.) carry out all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CDs.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment same or similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
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, tripping total loop circuit breaker;
If be less than described predetermined current locking definite value, the on-load switch of idle duplexure described in tripping.
2. the method for claim 1, is characterized in that, in tripping total loop circuit breaker, also comprises:
Malfunctioning and the solution that starts main transformer branch circuit breaker presses off lock again.
3. the method for claim 1, is characterized in that, in the on-load switch of idle duplexure described in tripping, also comprises:
Start branch bar failure protection and remove and press off again lock.
4. a reactive apparatus loop protection device, 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;
The first processing unit, if for being greater than described predetermined current locking definite value, tripping total loop circuit breaker;
The second processing unit, if for being less than described predetermined current locking definite value, the on-load switch of idle duplexure described in tripping.
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 true CN103606888A (en) | 2014-02-26 |
| CN103606888B CN103606888B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310647677.XA Active CN103606888B (en) | 2013-11-22 | 2013-11-22 | Reactive apparatus loop protection method and device |
Country Status (1)
| Country | Link |
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| CN (1) | CN103606888B (en) |
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 |
-
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 |
|---|
| 田秋松等: "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", 《河南电力》 * |
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| Publication number | Publication date |
|---|---|
| CN103606888B (en) | 2016-04-13 |
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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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