CN206096384U - Breaker state monitoring system based on divide closing coils electric current - Google Patents
Breaker state monitoring system based on divide closing coils electric current Download PDFInfo
- Publication number
- CN206096384U CN206096384U CN201621135849.0U CN201621135849U CN206096384U CN 206096384 U CN206096384 U CN 206096384U CN 201621135849 U CN201621135849 U CN 201621135849U CN 206096384 U CN206096384 U CN 206096384U
- Authority
- CN
- China
- Prior art keywords
- signal
- current
- circuit breaker
- divide
- monitoring system
- Prior art date
- 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.)
- Active
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 23
- 238000000605 extraction Methods 0.000 claims abstract description 13
- 238000004458 analytical method Methods 0.000 claims abstract description 8
- 230000003750 conditioning effect Effects 0.000 claims abstract description 6
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 102000001253 Protein Kinase Human genes 0.000 claims description 6
- 108060006633 protein kinase Proteins 0.000 claims description 6
- 230000001143 conditioned effect Effects 0.000 claims description 5
- 239000000284 extract Substances 0.000 claims description 4
- 108091000080 Phosphotransferase Proteins 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 102000020233 phosphotransferase Human genes 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 10
- 230000009471 action Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
The utility model discloses a breaker state monitoring system based on divide closing coils electric current, characterized by: the system composition includes: current sensor, signal conditioning module, signal extraction module and signal analysis display terminal, the current signal that utilizes the current sensor detect circuit breaker to divide closing coils to normal condition circuit breaker that detects the acquisition and the current signal of being monitored the circuit breaker, calculates electric current vector set similarity to this judges monitoring results. The utility model discloses a mechanical state to the circuit breaker discerns, the trouble hidden danger in the time of in time discovering the circuit breaker divide -shut brake, reliability and the security that improves circuit breaker and power system operation.
Description
Technical field
This utility model is related to chopper monitoring technical field, more particularly to a kind of open circuit based on divide-shut brake coil current
Device condition monitoring system.
Background technology
Chopper is the visual plant in power system, and its reliability is related to the operation stability of whole electrical network, distribution
The raising of automaticity proposes higher and higher requirement to the reliability of chopper itself.The operation of substation equipment at present
Environment allows of no optimist, and circuit-breaker switching on-off failure happens occasionally, including operating chopper is in "on" position, closing circuit
When breaking down can not early warning in time, reclosing action breaker closes a floodgate the situation of failure when causing transient fault to occur；
Have back-up breaker in gate-dividing state, when sub-gate circuit breaks down can not early warning in time, when causing its input coefficient to run
Sending warning signal forces operating power failure of breaker to process.It is to guarantee to break to System for Circuit Breaker monitoring and real-time assessment
The correct operation of road device, save service kit investment, improve scene detection efficiency, optimization distribution network equipment state management mode and
Repair based on condition of component strategy, meets intelligent grid with regard to implementing the requirement of State Maintenance and state estimation to electrical equipment, with larger
Research Significance and application prospect.
For the maintenance of chopper is mostly to carry out periodic inspection using predetermined code in traditional method, but periodic inspection
Form wastes time and energy, brings the defects such as unnecessary shut-down, endangers the functional reliability of chopper, or even introduces new in maintenance
Failure.
Utility model content
This utility model is to avoid the deficiency existing for above-mentioned prior art, there is provided one kind is based on divide-shut brake coil current
State monitoring system for circuit breaker, realize efficient, accurate judgement to working state of circuit breaker.
This utility model is adopted the following technical scheme that to solve technical problem：
The characteristics of this utility model is based on the state monitoring system for circuit breaker of divide-shut brake coil current is that the system includes：
One current sensor, it is used to detect the current signal of circuit-breaker switching on-off coil；
One Signal-regulated kinase, it is connected with the current sensor, for receiving the electricity of the current sensor output
Stream signal, and the current signal is filtered and is amplified, and export conditioned current signal；
One signal extraction module, it is connected with the Signal-regulated kinase, for receiving the Signal-regulated kinase transmission
Conditioned current signal, and extract acquisition current waveform signal；
One signal analysis display terminal, it is connected with the signal extraction module, for receiving the signal extraction module
The current waveform signal of transmission, analyzes and shows monitoring result；
The characteristics of this utility model is based on the state monitoring system for circuit breaker of divide-shut brake coil current lies also in：The signal
Conditioning module includes a current signal conditioning chip, and it is connected with the current sensor, for receiving current sensor output
Current signal, and the current signal is filtered and is amplified.
The characteristics of this utility model is based on the state monitoring system for circuit breaker of divide-shut brake coil current lies also in：Communication is set
Chip, for being communicated using Ethernet between the signal extraction module and signal analysis display terminal.
Compared with prior art, this utility model has the advantages that：
1st, chopper contains important status information in course of action, such as：Circuit-breaker switching on-off control loop
Current signal contains the information such as various time-parameters, mechanism action parameter and coil electric parameter, this utility model system
By the current signal of Real-time Collection, analysis and process circuit-breaker switching on-off control loop, the machine performance of chopper is carried out
Identification, potential faults when can in time find circuit-breaker switching on-off, improves the reliability and peace of chopper and Operation of Electric Systems
Quan Xing.
2nd, current signal is obtained by circuit-breaker switching on-off control loop in this utility model monitoring method, for chopper point
Making process does not have any impact, can develop into a kind of more accurate, convenient, safe State-Inspect of High-Voltage Circuit method.
3rd, carry for the Full wave shape of current waveform signal carries out more intensive characteristic point in this utility model monitoring method
Take, so that characteristic vector set can preferably describe the situation of change of current waveform.
4th, current vector set similarity defined in this utility model monitoring method, can take into full account each characteristic vector
Difference condition, so as to obtain more accurate comparing result.
5th, the current vector set similarity that acquisition is calculated in this utility model monitoring method is that circuit-breaker status detection is carried
Quantitative basis for estimation is supplied, so as to be more accurately obtained the High Voltage Circuit Breaker Condition.
6th, this utility model monitoring system simple structure, it is easy to implement, and it is easy to operator to find chopper in time
The exception of state is cut-off, the operational reliability of chopper and the security and stability of power system is greatly improved.
Description of the drawings
Fig. 1 is this utility model system structure schematic block diagram.
Specific embodiment
Referring to Fig. 1, the state monitoring system for circuit breaker in the present embodiment based on divide-shut brake coil current includes：
One current sensor, is to adopt current transformer, for detecting the current signal of circuit-breaker switching on-off coil.
One Signal-regulated kinase, it is connected with current sensor, including a current signal conditioning chip, for receiving electric current
The current signal of sensor output, and current signal is filtered and is amplified, export conditioned current signal.
One signal extraction module, it is connected with Signal-regulated kinase, and for receiving signal the conditioned of module transfer is managed
Current signal, and extract acquisition current waveform signal.
One signal analysis display terminal, it is connected with signal extraction module, for receiving the electricity of signal extraction module transfer
Stream waveshape signal, analyzes and shows monitoring result.
Communication chip is set in the present embodiment, between signal extraction module and signal analysis display terminal utilize with
Too net is communicated.
State-Inspect of High-Voltage Circuit method in the present embodiment based on divide-shut brake coil current is to carry out as follows：
Step a：For nominal situation chopper and monitored chopper, current sensor collection chopper point is utilized respectively
The current signal of shutting-brake control loop, extracts after and amplification filtered for the current signal and obtains current waveform signal.
Step b：For the current waveform signal, sampled with sample frequency f, obtained n sampled point；Make the electricity
Stream waveshape signal starting point O be zero O (0,0), from starting point O, for n sampled point is at interval of n0It is individual to click
Take characteristic point Tj.
Number k of characteristic point Tj is：K=round (n/n0)；J=1,2 ..., k；
n0=round (f/1000), round represent round numbers computing；
Step c：Difference connection coordinate origin O (0,0) with each characteristic point Tj, each characteristic vector is obtained, with each feature
Vectorial constitutive characteristic vector set, obtains respectively current waveform signal set of eigenvectors X of nominal situation chopper, and monitored
Current waveform signal set of eigenvectors Y of chopper；
Wherein,WithIt is characterized vectorial coordinate；Defining current vector set similarity d is：
If current vector set similarity d is more than or equal to 0.9, it is judged as that monitored chopper is in nominal situation；
If current vector set similarity is less than 0.9, it is judged as that monitored chopper may break down.
Setting n is not less than 1000, n0Not less than 10.
Claims (3)
1. a kind of state monitoring system for circuit breaker based on divide-shut brake coil current, it is characterised in that the system includes：
One current sensor, it is used to detect the current signal of circuit-breaker switching on-off coil；
One Signal-regulated kinase, it is connected with the current sensor, for receiving the electric current letter of the current sensor output
Number, and the current signal is filtered and is amplified, and export conditioned current signal；
One signal extraction module, it is connected with the Signal-regulated kinase, for receiving the Jing of the Signal-regulated kinase transmission
The current signal of conditioning, and extract acquisition current waveform signal；
One signal analysis display terminal, it is connected with the signal extraction module, for receiving the signal extraction module transfer
Current waveform signal, analyze and show monitoring result.
2. the state monitoring system for circuit breaker based on divide-shut brake coil current according to claim 1, it is characterised in that institute
Signal-regulated kinase is stated including a current signal conditioning chip, it is connected with the current sensor, for receiving current sense
The current signal of device output, and the current signal is filtered and is amplified.
3. the state monitoring system for circuit breaker based on divide-shut brake coil current according to claim 1, it is characterised in that set
Communication chip is put, for being communicated using Ethernet between the signal extraction module and signal analysis display terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621135849.0U CN206096384U (en) | 2016-10-18 | 2016-10-18 | Breaker state monitoring system based on divide closing coils electric current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621135849.0U CN206096384U (en) | 2016-10-18 | 2016-10-18 | Breaker state monitoring system based on divide closing coils electric current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206096384U true CN206096384U (en) | 2017-04-12 |
Family
ID=59975511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621135849.0U Active CN206096384U (en) | 2016-10-18 | 2016-10-18 | Breaker state monitoring system based on divide closing coils electric current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206096384U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443433A (en) * | 2016-10-18 | 2017-02-22 | 国家电网公司 | Monitoring system and monitoring method for circuit breaker state based on divide-shut brake coil current |
| CN111030300A (en) * | 2019-12-17 | 2020-04-17 | 国网安徽省电力有限公司电力科学研究院 | Circuit breaker and circuit breaker system |
-
2016
- 2016-10-18 CN CN201621135849.0U patent/CN206096384U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443433A (en) * | 2016-10-18 | 2017-02-22 | 国家电网公司 | Monitoring system and monitoring method for circuit breaker state based on divide-shut brake coil current |
| CN106443433B (en) * | 2016-10-18 | 2023-08-25 | 国家电网公司 | Breaker state monitoring system and method based on opening and closing coil current |
| CN111030300A (en) * | 2019-12-17 | 2020-04-17 | 国网安徽省电力有限公司电力科学研究院 | Circuit breaker and circuit breaker system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103515921B (en) | A kind of online protective circuit of high-voltage circuit breaker/closing coil and guard method thereof | |
| CN104377816B (en) | A kind of control method of intelligentized reclosing breaker and its automatic reclosing | |
| CN106199341B (en) | Fault line identification method and device under single-phase fault grounding working condition | |
| CN103823433B (en) | Method for realizing relay protection equipment on-line monitoring by use of communication process analysis | |
| CN110967627B (en) | Distributed monitoring system and monitoring method for 10kV vacuum circuit breaker | |
| CN105403831A (en) | Fault on-line monitoring device of high-voltage breaker and monitoring method thereof | |
| CN108963962B (en) | Multilevel arc fault circuit breaking system | |
| CN102426317B (en) | Fault detection method of intelligent power grid | |
| CN114241730B (en) | Substation equipment monitoring and early warning system based on data acquisition | |
| CN106443433A (en) | Monitoring system and monitoring method for circuit breaker state based on divide-shut brake coil current | |
| CN103995172B (en) | Method for on-line monitoring of load current of GIS bus of substation | |
| CN106841876B (en) | A kind of monitoring method of relay protection outlet pressing plate | |
| CN110412346A (en) | A kind of metering type intelligent breaker based on Internet of Things | |
| CN106168638A (en) | A kind of method utilizing protective relaying device to realize high-voltage parallel capacitor on-line monitoring | |
| CN103529708A (en) | Pre-operation simulation system for power distribution network and simulation analysis method | |
| CN110930669A (en) | Monitoring and early warning system and method for tripping and closing loop of transformer substation | |
| CN206096384U (en) | Breaker state monitoring system based on divide closing coils electric current | |
| CN202794300U (en) | Online monitoring device of power transmission line lightening arrester | |
| CN104993455A (en) | Traction transformer over current protection method | |
| CN103701218B (en) | Transmission line malfunction monitoring device and monitoring method | |
| CN105699889B (en) | Circuit breaker of intelligent transformer substation electrical endurance loses and the evaluation method of arc extinguishing ability | |
| CN104614603A (en) | On-site protection device status detection system and detection method thereof | |
| CN111381127A (en) | Method and device for single-phase earth fault and insulation monitoring of mine power supply system | |
| CN203054193U (en) | On-line monitoring system for mechanical characteristic of vacuum circuit breaker | |
| CN206096341U (en) | Be applied to fault line recognition device under distribution network single -phase fault ground connection operating mode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |