CN106911121A - A kind of guard method of intelligent breaker closing coil protection device - Google Patents
A kind of guard method of intelligent breaker closing coil protection device Download PDFInfo
- Publication number
- CN106911121A CN106911121A CN201710269711.2A CN201710269711A CN106911121A CN 106911121 A CN106911121 A CN 106911121A CN 201710269711 A CN201710269711 A CN 201710269711A CN 106911121 A CN106911121 A CN 106911121A
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- CN
- China
- Prior art keywords
- closing coil
- protection device
- voltage
- breaker closing
- intelligent breaker
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- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/008—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for protective arrangements according to this subclass
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
- H02H7/222—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices for switches
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
A kind of guard method of intelligent breaker closing coil protection device, it is characterised in that：Intelligent breaker closing coil protection device gathers the voltage signal of breaker loop combined floodgate moment using Hall voltage sensor; Data Analysis Services are carried out by the signal; corresponding data are shown by intelligent breaker closing coil protection device; whether control voltage quality when intelligent breaker closing coil protection device judges to close a floodgate is qualified; in this, as the foundation of intelligent breaker closing coil protection device protection act, to overcome the deficiencies in the prior art.
Description
Technical field
Protected the present invention relates to a kind of breaker closing coil guard method, more particularly to a kind of intelligent breaker closing coil
The guard method of protection unit, belongs to power protection technology field.
Background technology
In the power system that the capacity such as power plant, transformer station are big, voltage is high, straight-flow system is protected for relay for power system
The equipment such as shield, operational control, signal sound equipment and emergency lighting provide reliable power supply.Breaker is most important as power system
One of primary equipment, its reliable and stable operation will directly ensure the safety of whole power system.
Circuit-breaker switching on-off coil protector is to ensure that breaker can reliably disconnect in separating brake or making process
Coil controls power supply, so as to avoid the burnout failure caused by coil is powered for a long time from occurring.
The circuit-breaker switching on-off coil protector of domestic universal manufacturer production, profile is fairly simple, substantially without operation, only
It is to realize timing break-make by the collocation of simple hardware circuit, it is impossible to provide corresponding data to analysis accident producing cause and support.
Patent name is《A kind of intelligent breaker closing coil protection device》, Application No.：201621116105.4 hairs
A person of good sense is：Sweet to reach the clouds, patent discloses a kind of intelligent breaker closing coil protection device, using the protection device in breaker
Break down or when voltage can not meet combined floodgate and require, combined floodgate holding circuit can be automatically cut off, closed a floodgate so as to reach protection
The purpose of coil.
But the invention is not directed to the guard method of collective, do not retouched for how to judge whether voltage meets requirement
State.So as to cannot accurately be judged.
The content of the invention
It is an object of the invention to provide a kind of guard method of intelligent breaker closing coil protection device, by this hair
The guard method of a kind of intelligent breaker closing coil protection device of bright offer, so as to realize accurately judging whether voltage meets
Close a floodgate and require, can accurately automatically cut off combined floodgate holding circuit, so as to reach the purpose of accurate protection closing coil.
The technical solution adopted for the present invention to solve the technical problems is：A kind of intelligent breaker closing coil protection device
Guard method, intelligent breaker closing coil protection device gathers breaker loop and closes a floodgate moment using Hall voltage sensor
Voltage signal, by carrying out Data Analysis Services to the signal, corresponding data are protected by intelligent breaker closing coil
Device shows whether control voltage quality when intelligent breaker closing coil protection device judges to close a floodgate is qualified, in this, as
The foundation of intelligent breaker closing coil protection device protection act.
Whether the qualified scope for the value of loop voltage U of control voltage quality during described combined floodgate is α × Ue≤U≤β
×Ue, its mathematical computations expression formula is：
U=Ukm+-Ukm-
In formula：UKM+It is control positive voltage；UKM-It is control negative voltage；UeIt is nominal control volatge, U is loop voltage.
Described α × Ue≤U≤β×UeIt is then α × U when electric current is direct currente≤U≤β×UeIt is 0.8 × Ue≤U≤
1.1Ue, when electric current is exchange, then α × Ue≤U≤β×UeIt is 0.85 × Ue≤U≤1.1×Ue, now judge loop voltage matter
Amount is qualified.
The scope of the up-to-standard value for DC loop voltage U of described loop voltage is in 0.8 × Ue≤U≤1.1UeScope
It is interior, now intelligent breaker closing coil protection device normally-closed contact invariant position；If the value of DC loop voltage U：U ＜
0.8UeOr U ＞ 1.1Ue, then account for voltage is off quality, and now intelligent breaker closing coil protection device normally-closed contact is beaten
Open, system provides the unqualified alarm of quality of voltage.
The value of described loop voltage U is when the input voltage in breaker operation cabinet loop is below or above design load
When, the voltage judging submodule in intelligent breaker closing coil protection device breakdown judge module will recognise that fault-signal,
Exported by relay, it is ensured that the normal cutoff of closing circuit, it is achieved thereby that the defencive function of closing coil.
Described quality of voltage is unqualified also to include breaker in making process, due to circuit breaker failure, auxiliary switch
Correct operation or associated contacts adhesion are unable to, cause closing coil two ends powered for a long time, cause the situation of closing coil scaling loss, its
Judgment mode is：
In formula, T is the sampling time, i.e. input time；TsetFor device definite value sets the time.
Compared with the prior art, the present invention is by adopting the above-described technical solution, have the following effects that：Realize and accurately sentence
Whether power-off pressure meets combined floodgate requires, can accurately automatically cut off combined floodgate holding circuit, so as to reach accurate protection closing line
The purpose of circle, overcomes the deficiencies in the prior art.
Specific embodiment
The present invention is described in further detail below, but not as any limitation of the invention.
A kind of guard method of intelligent breaker closing coil protection device, intelligent breaker closing coil protection device makes
The voltage signal of breaker loop combined floodgate moment is gathered with Hall voltage sensor, is carried out at data analysis by the signal
Reason, corresponding data show that intelligent breaker closing coil protection device is sentenced by intelligent breaker closing coil protection device
Whether disconnected control voltage quality when closing a floodgate qualified, in this, as intelligent breaker closing coil protection device protection act according to
According to.
Whether the qualified scope for the value of loop voltage U of control voltage quality during combined floodgate is α × Ue≤U≤β×Ue, its
Mathematical computations expression formula is：
U=Ukm+-Ukm-
In formula：UKM+It is control positive voltage；UKM-It is control negative voltage；UeIt is nominal control volatge, U is loop voltage.
α×Ue≤U≤β×UeIt is then α × U when electric current is direct currente≤U≤β×UeIt is 0.8 × Ue≤U≤1.1Ue, when
When electric current is exchange, then α × Ue≤U≤β×UeIt is 0.85 × Ue≤U≤1.1×Ue, now judge that loop voltage is up-to-standard.
The scope of the up-to-standard value for DC loop voltage U of loop voltage is in 0.8 × Ue≤U≤1.1UeIn the range of, this
When intelligent breaker closing coil protection device normally-closed contact invariant position；If the value of DC loop voltage U：U ＜ 0.8UeOr U
＞ 1.1Ue, then account for voltage is off quality, and now intelligent breaker closing coil protection device normally-closed contact is opened, system
Provide the unqualified alarm of quality of voltage.
The value of loop voltage U is the intelligence when the input voltage in breaker operation cabinet loop is below or above design load
Voltage judging submodule in breaker closing coil protector breakdown judge module will recognise that fault-signal, by relay
Device is exported, it is ensured that the normal cutoff of closing circuit, it is achieved thereby that the defencive function of closing coil.
Quality of voltage is unqualified also to include breaker in making process, and due to circuit breaker failure, auxiliary switch can not be just
Positive motion is made or associated contacts adhesion, causes closing coil two ends powered for a long time, causes the situation of closing coil scaling loss, its judgement side
Formula is：
In formula, T is the sampling time, i.e. input time；TsetFor device definite value sets the time.The invention discloses a kind of intelligence
The guard method of energy breaker closing coil protector, described intelligent breaker closing coil protection device uses Hall electricity
The voltage signal of pressure sensor collection breaker loop combined floodgate moment, carries out Data Analysis Services, accordingly by the signal
Data are shown by intelligent breaker closing coil protection device, when intelligent breaker closing coil protection device judges to close a floodgate
Whether control voltage quality qualified, in this, as the foundation of intelligent breaker closing coil protection device protection act, can with gram
Take the deficiency of currently available technology.
Claims (4)
1. a kind of guard method of intelligent breaker closing coil protection device, it is characterised in that：Intelligent breaker closing coil
Protection device gathers the voltage signal of breaker loop combined floodgate moment using Hall voltage sensor, and line number is entered by the signal
According to analyzing and processing, corresponding data are shown by intelligent breaker closing coil protection device, and intelligent breaker closing coil is protected
Whether control voltage quality when protection unit judges to close a floodgate is qualified, in this, as the protection of intelligent breaker closing coil protection device
The foundation of action.
2. the guard method of a kind of intelligent breaker closing coil protection device according to claim 1, it is characterised in that：
Whether the qualified scope for the value of loop voltage U of control voltage quality during described combined floodgate is α × Ue≤U≤β×Ue, its number
Learning calculation expression is：
U=Ukm+-Ukm-
In formula：Ukm+It is control positive voltage；It is control negative voltage；Ukm-It is nominal control volatge, U is loop voltage.
3. the guard method of a kind of intelligent breaker closing coil protection device according to claim 2, it is characterised in that：
Described α × Ue≤U≤β×UeIt is then α × U when electric current is direct currente≤U≤β×UeIt is 0.8 × Ue≤U≤1.1×Ue, when
When electric current is exchange, then α × Ue≤U≤β×UeIt is 0.85 × Ue≤U≤1.1×Ue, now judge that loop voltage is up-to-standard.
4. the guard method of a kind of intelligent breaker closing coil protection device according to claim 3, it is characterised in that：
The scope of the up-to-standard value for DC loop voltage U of described loop voltage is in 0.8 × Ue≤U≤1.1×UeIn the range of, this
When intelligent breaker closing coil protection device normally-closed contact invariant position；If the value of DC loop voltage U：U ＜ 0.8UeOr U
＞ 1.1Ue, then account for voltage is off quality, and now intelligent breaker closing coil protection device normally-closed contact is opened, system
Provide the unqualified alarm of quality of voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710269711.2A CN106911121A (en) | 2017-04-21 | 2017-04-21 | A kind of guard method of intelligent breaker closing coil protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710269711.2A CN106911121A (en) | 2017-04-21 | 2017-04-21 | A kind of guard method of intelligent breaker closing coil protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106911121A true CN106911121A (en) | 2017-06-30 |
Family
ID=59209628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710269711.2A Pending CN106911121A (en) | 2017-04-21 | 2017-04-21 | A kind of guard method of intelligent breaker closing coil protection device |
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| CN (1) | CN106911121A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1544955A (en) * | 2003-11-25 | 2004-11-10 | 郭贤珊 | Comprehensive test instrument of electric system primary cut out |
| CN101267106A (en) * | 2008-01-25 | 2008-09-17 | 北海银河开关设备有限公司 | A close loop protection circuit for middle voltage breaker |
| CN201966531U (en) * | 2010-11-01 | 2011-09-07 | 广西中电新源电气有限公司 | HGIS (hybrid gas insulated switchgear) combined electrical apparatus on-line monitoring device and integration HGIS intelligent combined electrical apparatus |
| CN203054194U (en) * | 2012-12-31 | 2013-07-10 | 广州供电局有限公司 | Monitoring system for breaking coil and closing coil of breaker |
| CN103454580A (en) * | 2013-08-23 | 2013-12-18 | 国家电网公司 | Device for testing characteristics of breaker opening and closing coils |
| CN104241014A (en) * | 2014-09-13 | 2014-12-24 | 安徽鑫龙电器股份有限公司 | Protection controller for opening coil and closing coil of vacuum circuit breaker and method |
-
2017
- 2017-04-21 CN CN201710269711.2A patent/CN106911121A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1544955A (en) * | 2003-11-25 | 2004-11-10 | 郭贤珊 | Comprehensive test instrument of electric system primary cut out |
| CN101267106A (en) * | 2008-01-25 | 2008-09-17 | 北海银河开关设备有限公司 | A close loop protection circuit for middle voltage breaker |
| CN201966531U (en) * | 2010-11-01 | 2011-09-07 | 广西中电新源电气有限公司 | HGIS (hybrid gas insulated switchgear) combined electrical apparatus on-line monitoring device and integration HGIS intelligent combined electrical apparatus |
| CN203054194U (en) * | 2012-12-31 | 2013-07-10 | 广州供电局有限公司 | Monitoring system for breaking coil and closing coil of breaker |
| CN103454580A (en) * | 2013-08-23 | 2013-12-18 | 国家电网公司 | Device for testing characteristics of breaker opening and closing coils |
| CN104241014A (en) * | 2014-09-13 | 2014-12-24 | 安徽鑫龙电器股份有限公司 | Protection controller for opening coil and closing coil of vacuum circuit breaker and method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170630 |
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| RJ01 | Rejection of invention patent application after publication |