CN109188260A - A kind of breaker actuation behavioural analysis device based on fuel factor and electric characteristic amount - Google Patents
A kind of breaker actuation behavioural analysis device based on fuel factor and electric characteristic amount Download PDFInfo
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- CN109188260A CN109188260A CN201810861110.5A CN201810861110A CN109188260A CN 109188260 A CN109188260 A CN 109188260A CN 201810861110 A CN201810861110 A CN 201810861110A CN 109188260 A CN109188260 A CN 109188260A
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- Prior art keywords
- breaker
- behavioural analysis
- signal
- analysis device
- sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Breakers (AREA)
Abstract
The invention discloses a kind of breaker actuation behavioural analysis device based on fuel factor and electric characteristic amount, include: sensor module: using current sensor and temperature sensor, wherein current sensor is nested in circuit breaker trip coil, temperature sensor is fitted in circuit breaker trip coil surface, and current sensor and temperature sensor utilize serial port form output signal；Signal collection module obtains the protection of current sensor and the collected signal of temperature sensor and breaker and the state of auxiliary contact；Behavioural analysis module analyzes tripping behavior, makes intelligent decision using the expert knowledge library of circuit breaker trip.The present invention realizes the quick analytical judgment of breaker actuation, and does not influence the work operation of original breaker, reduces service personnel to the examining and analyzing time of breaker, improves overhaul efficiency.
Description
Technical field
The invention belongs to power safety technique fields, and in particular to breaker actuation behavioral analysis technology.
Background technique
Breaker is primary equipment particularly important in electric system, it is mainly used for connecting or disconnecting the normal of circuit
Operating current, short circuit current and overload electric current, have the function of arc extinguishing.When electric system is broken down, breaker with
Other protective devices cooperate with the faulty equipment in excision system rapidly, protect in electric system other electrical equipments not by
It influences, realizes the purpose for reducing scope of power outage with preventing fault spread.When breaker refused action due to coil burnout, breaker
It will be unable to excision faulty line, directly contribute the tripping of upper level protection act to cut off failure, so that this is in moderately good operation
Route be removed without reason, cause scope of power outage to expand, cause large area blackout.
Breaking coil is one of most important component part in breaker (switch), and breaker is in the process of running often
There is breaking coil and the failures such as burn refusing the phenomenon that jumping to generate, it is not operating when leading to the breaker movement.Breaking coil goes out
It the failures such as now burns, is often as occurring executing agency's bite in breaker, coil control circuit contact adhesion can not disconnect
And the reasons such as auxiliary switch node is not in place cause, so that coil is in energized state for a long time, coil generates heat and burns
It ruins, eventually leading to breaker can not trip in time.
Therefore, in-service monitoring is carried out to the operating status of circuit breaker trip coil, obtains the operation shape of breaking coil in real time
Condition grasps the fault message being likely to occur, and judges whether be abnormal tripping rapidly when breaker trips, it has also become disconnected
The task of top priority of road device breaking coil maintenance is ground currently, not yet occurring the relevant apparatus of breaker actuation behavioural analysis in the market
The blank of overhaul of line breaker can be filled up by producing the device, greatly improve the efficiency of overhaul of line breaker.
Summary of the invention
It is dynamic that the technical problem to be solved by the invention is to provide a kind of breakers based on fuel factor and electric characteristic amount
Make behavioural analysis device, in-service monitoring is carried out to the operating status of circuit breaker trip coil, obtains the operation of breaking coil in real time
Situation grasps the fault message being likely to occur, and judges whether be abnormal tripping rapidly when breaker trips.
In order to solve the above technical problems, the present invention adopts the following technical scheme: a kind of be based on fuel factor and electric characteristic amount
Breaker actuation behavioural analysis device, comprising:
Sensor module: current sensor and temperature sensor are used, wherein current sensor is nested in circuit breaker trip
Coil, it is defeated using serial port form that temperature sensor is fitted in circuit breaker trip coil surface, current sensor and temperature sensor
Signal out；
Signal collection module, obtain the protection of current sensor and the collected signal of temperature sensor and breaker with
The state of auxiliary contact；
Behavioural analysis module analyzes tripping behavior using the expert knowledge library of circuit breaker trip, makes intelligence and sentences
It is disconnected.
Preferably, the current sensor is straight-through current transformer, and the straight-through current transformer is using suspension
Fixed structure is nested in circuit breaker trip coil.
Preferably, the suspension fixed structure include the suspension passed through from straight-through current transformer center hole and
The insulating sleeve being nested on coil, the middle part of the suspension are equipped with the button fastened with straight-through current transformer front
Slot, the upper and lower part of the suspension is pierced by from straight-through current transformer center hole and is equipped with fixing screwed hole, described
Fixing screwed hole internal screw thread is connected with top pressure screw rod, and the top pressure screw rod with threaded hole threaded engagement with insulating sleeve by holding out against
It is fixed.
Preferably, the signal collection module uses the microcontroller of technical grade.
Preferably, the behavioural analysis module is integrated on a microcontroller.
Preferably, the current sensor and temperature sensor are fixed on fixed frame, and the microcontroller is mounted on fixation
In case, the fixed frame is fixed with fixed case.
Preferably, the expert knowledge library is current signal, temperature signal, contact point signal and the logical groups for protecting signal
Close the one group of logic judgment constituted.
The present invention by adopting the above technical scheme, realizes the quick analytical judgment of breaker actuation, and does not influence original open circuit
The work of device is run, and is reduced service personnel to the examining and analyzing time of breaker, is improved overhaul efficiency.
The specific technical solution of the present invention and its advantages will in the following detailed description in conjunction with attached drawing into
Row detailed description.
Detailed description of the invention
Present invention will be further described below with reference to the accompanying drawings and specific embodiments:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is that straight-through current transformer uses suspension fixed structure schematic diagram.
Specific embodiment
Embodiment one, refering to what is shown in Fig. 1, a kind of breaker actuation behavioural analysis dress based on fuel factor and electric characteristic amount
It sets, after which is installed in breaker secondary control loop, does not influence the normal operation of breaker, comprising:
Sensor module: the operating status of breaking coil when obtaining circuit breaker trip is passed using current sensor and temperature
Sensor, wherein current sensor is nested in circuit breaker trip coil, the electric current of breaking coil, temperature when obtaining circuit breaker trip
Sensor is fitted in circuit breaker trip coil surface, is changed with accurate temperature measurements, and current sensor and temperature sensor utilize
Serial port form output signal.
Signal collection module, obtain the protection of current sensor and the collected signal of temperature sensor and breaker with
The state of auxiliary contact, such as be spaced apart and protect, to provide analytical judgment foundation when breaker actuation variation.
Behavioural analysis module analyzes tripping behavior using the expert knowledge library of circuit breaker trip, makes intelligence and sentences
It is disconnected.
Wherein, the signal collection module uses the microcontroller 11 of technical grade.The behavioural analysis module is integrated in micro-
Controller 11.Microcontroller is PLC common at present, has high anti-interference ability and stability, enhances signal and receives and processing
Reliability.The current sensor and temperature sensor are fixed on fixed frame, and the microcontroller is mounted in fixed case 1,
The fixed frame is fixed with fixed case.
Fixed case is equipped with the display screen 12 communicated with microcontroller 11, can be with the analysis result of epideictic behaviour analysis module.
Wherein, the expert knowledge library is current signal, temperature signal, contact point signal and the logical combination for protecting signal
The one group of logic judgment constituted, specifically see the table below.
Expert knowledge library is integrated with breaker various motion accident, by overhaul of line breaker personnel field experience abundant,
Logic judgment is formed, burning is in PLC.When breaker generation, which acts, to be changed, Automatic-searching is simultaneously matched in expert knowledge library
Example, and make corresponding judgement.
Existing analytical equipment, microcontroller are set in fixed case, and the anti-interference aspect of electromagnetism has hidden danger.Therefore in the present invention,
The inside of the fixed case is equipped with the shielding case for shielding electromagnetic interference, and the fixed case and shielding case are correspondingly provided with opening,
The opening is by shielding case cover closure.By shielding case and shielding case cover plate combination, therefore forming electromagnetic armouring structure makes
The anti-electromagnetic interference capability of analytical equipment improves.
Wherein, the fixed case is moulding, and the shielding case and shielding housing-plate are metallic stamping pieces.The shielding case
With fixed chamber interior wall interference fit.The shielding housing-plate is used with fixed case and is fastened.
Embodiment two, refering to what is shown in Fig. 2, current sensor can use straight-through current transformer 2.In embodiment one
The fixed form difference of current sensor is that the straight-through current transformer 2 is nested in open circuit using suspension fixed structure
Device breaking coil.
Wherein, suspension fixed structure includes the suspension 23 passed through from straight-through current transformer center hole and nesting
Insulating sleeve 22 on coil 21, the middle part of the suspension are equipped with the button fastened with straight-through current transformer front
Slot, the upper and lower part of the suspension is pierced by from straight-through current transformer center hole and is equipped with fixing screwed hole, described
Fixing screwed hole internal screw thread is connected with top pressure screw rod 24, the top pressure screw rod by with threaded hole threaded engagement and insulation sleeve tube top
It fastens.
Coil 21 and suspension 23 are insulated using insulating sleeve 22, so that it is special to avoid insulating because of transformer casing
Property failure and interruption of service occurs, still further aspect increases phenolic aldehyde ring resistant to high temperature between insulating sleeve 22 and top pressure screw rod 24
Oxygen resin plate gasket 25 realizes double insulation protection.
Wherein, the catching groove is C-shaped, can be outside by mutual inductor according to the profile arrangement of straight-through current transformer
Tension buckles.
When installation, while the top pressure screw rod of suspension upper and lower part is screwed in into fixing screwed hole, top pressure screw rod is to exhausted
Edge casing direction carries out extruding stress, while straight-through current transformer is fixedly secured by tension outward using suspension,
Straight-through current transformer will not be slid by gravity, and straight-through current transformer suspension is allowed to be nested on the outside of insulating sleeve.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, is familiar with
The those skilled in the art should be understood that the present invention includes but is not limited to content described in specific embodiment above.It is any
Modification without departing from function and structure principle of the invention is intended to be included in the range of claims.
Claims (7)
1. a kind of breaker actuation behavioural analysis device based on fuel factor and electric characteristic amount, characterized by comprising: sensing
Device assembly: current sensor and temperature sensor are used, wherein current sensor is nested in circuit breaker trip coil, temperature sensing
Device is fitted in circuit breaker trip coil surface, and current sensor and temperature sensor utilize serial port form output signal；
Signal collection module obtains the protection and auxiliary of current sensor and the collected signal of temperature sensor and breaker
The state of contact；
Behavioural analysis module analyzes tripping behavior, makes intelligent decision using the expert knowledge library of circuit breaker trip.
2. breaker actuation behavioural analysis device according to claim 1, it is characterised in that: the current sensor is to wear
Core type current transformer, the straight-through current transformer are nested in circuit breaker trip coil using suspension fixed structure.
3. breaker actuation behavioural analysis device according to claim 2, it is characterised in that: the suspension fixed structure packet
Include the suspension passed through from straight-through current transformer center hole and the insulating sleeve being nested on coil, the suspension branch
The middle part of frame is equipped with the catching groove that fastens with straight-through current transformer front, and the upper and lower part of the suspension is from punching
Current transformer center hole is pierced by and is equipped with fixing screwed hole, and the fixing screwed hole internal screw thread is connected with top pressure screw rod, described
Top pressure screw rod is by holding out against fixation with threaded hole threaded engagement and insulating sleeve.
4. breaker actuation behavioural analysis device according to claim 1, it is characterised in that: the signal collection module is adopted
With the microcontroller of technical grade.
5. breaker actuation behavioural analysis device according to claim 4, it is characterised in that: the behavioural analysis module collection
At on a microcontroller.
6. breaker actuation behavioural analysis device according to claim 5, it is characterised in that: the current sensor and temperature
Degree sensor is fixed on fixed frame, and the microcontroller is mounted in fixed case, and the fixed frame is fixed with fixed case.
7. according to claim 1 to breaker actuation behavioural analysis device described in 6 any one, it is characterised in that: described special
Family's knowledge base is current signal, temperature signal, contact point signal and one group of logic judgment for protecting the logical combination of signal to constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810861110.5A CN109188260A (en) | 2018-08-01 | 2018-08-01 | A kind of breaker actuation behavioural analysis device based on fuel factor and electric characteristic amount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810861110.5A CN109188260A (en) | 2018-08-01 | 2018-08-01 | A kind of breaker actuation behavioural analysis device based on fuel factor and electric characteristic amount |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109188260A true CN109188260A (en) | 2019-01-11 |
Family
ID=64937627
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810861110.5A Pending CN109188260A (en) | 2018-08-01 | 2018-08-01 | A kind of breaker actuation behavioural analysis device based on fuel factor and electric characteristic amount |
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| CN (1) | CN109188260A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710014A (en) * | 2012-05-24 | 2012-10-03 | 北京四方继保自动化股份有限公司 | Mechanical characteristic condition monitoring device for circuit breaker based on IEC61850 |
| CN202929174U (en) * | 2012-10-24 | 2013-05-08 | 云南电网公司保山供电局 | High voltage circuit breaker on-line monitoring system |
| CN103515921A (en) * | 2013-09-25 | 2014-01-15 | 国家电网公司 | Online protection circuit of high-voltage breaker opening/closing coil and protection method thereof |
| KR20140028286A (en) * | 2012-08-28 | 2014-03-10 | 유호전기공업주식회사 | Device for mornitoring the operation of a circuit breaker and mehtod of monitoring the same |
| CN203502558U (en) * | 2013-09-25 | 2014-03-26 | 国家电网公司 | On-line monitoring device for switching-on/switching-off coil of transformer station high-voltage circuit breaker |
| CN106655111A (en) * | 2016-10-20 | 2017-05-10 | 国家电网公司 | Circuit breaker tripping and closing coil real-time measurement and control protection device and protection method |
| CN107515372A (en) * | 2017-08-21 | 2017-12-26 | 国网上海市电力公司 | A kind of switchgear defect intelligent detection and analysis system |
-
2018
- 2018-08-01 CN CN201810861110.5A patent/CN109188260A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710014A (en) * | 2012-05-24 | 2012-10-03 | 北京四方继保自动化股份有限公司 | Mechanical characteristic condition monitoring device for circuit breaker based on IEC61850 |
| KR20140028286A (en) * | 2012-08-28 | 2014-03-10 | 유호전기공업주식회사 | Device for mornitoring the operation of a circuit breaker and mehtod of monitoring the same |
| CN202929174U (en) * | 2012-10-24 | 2013-05-08 | 云南电网公司保山供电局 | High voltage circuit breaker on-line monitoring system |
| CN103515921A (en) * | 2013-09-25 | 2014-01-15 | 国家电网公司 | Online protection circuit of high-voltage breaker opening/closing coil and protection method thereof |
| CN203502558U (en) * | 2013-09-25 | 2014-03-26 | 国家电网公司 | On-line monitoring device for switching-on/switching-off coil of transformer station high-voltage circuit breaker |
| CN106655111A (en) * | 2016-10-20 | 2017-05-10 | 国家电网公司 | Circuit breaker tripping and closing coil real-time measurement and control protection device and protection method |
| CN107515372A (en) * | 2017-08-21 | 2017-12-26 | 国网上海市电力公司 | A kind of switchgear defect intelligent detection and analysis system |
Non-Patent Citations (2)
| Title |
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| 杨泳 等: "穿心式电流互感器固定装置的安装应用", 《科技视界》 * |
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Application publication date: 20190111 |
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