CN110190588A - Breaker intelligent monitoring and protective module - Google Patents
Breaker intelligent monitoring and protective module Download PDFInfo
- Publication number
- CN110190588A CN110190588A CN201910475437.3A CN201910475437A CN110190588A CN 110190588 A CN110190588 A CN 110190588A CN 201910475437 A CN201910475437 A CN 201910475437A CN 110190588 A CN110190588 A CN 110190588A
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- Prior art keywords
- breaker
- voltage
- current
- microprocessor
- intelligent monitoring
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
-
- 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
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Abstract
The present invention relates to a kind of breaker intelligent monitoring and protective modules; it is made of voltage, electric current, temperature sensor, power quality chip, microprocessor, power module, executing agency and communication module, the breaker intelligent monitoring is used in series with protective module and breaker.The potential risk of operation stability and the health condition of electrical equipment and route, the health status of breaker itself and remaining life, electricity system can be assessed and be prejudged by detection load condition parameter, breaker performance parameter, electricity consumption, overload conditions, temperature rise and power quality.Can greatly improve the intelligent level of breaker defencive function, at the same from distribution system, electrical equipment, breaker multi-faceted promotion electricity consumption safety and reliability.
Description
Technical field
The present invention relates to breaker technical fields, more specifically to breaker intelligent monitoring and protective module.
Background technique
Breaker is control and protection device important in low-voltage distribution system, overload, short circuit can occur in distribution system
Fault current is cut-off when failure rapidly, protects distribution system and electrical equipment, while can be used for on-off control infrequently
Operation.The stability and reliability of breaker performance for distribution system, electrical equipment and personal safety as well as the property safety guarantee and
Speech is of great significance.
However, traditional breaker does not have the detection, communication and remote control function of electricity, people are unable to monitor disconnected
The state of road device and related electricity are not able to satisfy the demand of present smart home field development.In general, breaker and distribution
Usually there are larger surpluses for the parameter selection of system cooperation, therefore only work as short-circuit or overload fault and compare under serious situation,
Breaker, which can just be detected and be executed, cut-offs operation, will cause bigger impact to distribution system and electrical equipment, influences to use
It is electric complete.
It is needed to run for quite a long time in addition, breaker self installation rises, with the accumulation of runing time and open and close times,
The electric property of breaker will be deteriorated inevitably, and service life can also decrease, but existing breaker can not be right
The electric property and remaining life of itself are detected, and there are higher security risks.
For these reasons, breaker intelligent monitoring provided by the invention and protective module overcome traditional breaker not
Have the shortcomings that detection, communication and remote control function of electricity and can not electric property to breaker itself and residue make
The shortcomings that being detected with the service life is used in series with breaker, and multi-angle improves the intelligence of breaker defencive function, is promoted
The safety and reliability of distribution system.
Summary of the invention
Technical problems to be solved
In order to avoid the shortcomings of the prior art, the present invention proposes a kind of breaker intelligent monitoring and protective module, lead to
Detection voltage, electric current, temperature, electric energy quality signal are crossed, judges power quality, load parameter, circuit breaker parameters, electricity consumption, mistake
It carries, temperature rise situation, realizes the health status of the operation stability and health condition, breaker itself to electrical equipment and route
It is assessed with the potential risk of remaining life and electricity system, improves the intelligent level of breaker defencive function.
Technical solution
A kind of breaker intelligent monitoring and protective module, it is characterised in that including voltage sensor, current sensor, temperature
Sensor, power quality chip, microprocessor, power module, executing agency and communication module；The voltage sensor respectively across
It connects between the three-phase end of incoming cables of breaker and the disengaging line end of breaker, for detecting line voltage, the dynamic and static touching of breaker
The arc voltage of on-state voltage drop and electric current interrupting process under head "on" position, and the signal that will test is sent to the electric energy
Quality chip and microprocessor；The current sensor uses Hall sensor, is socketed on the three-phase inlet wire conducting wire of breaker,
The signal that flows through the electric current and leakage current of contact of breaker for detecting, and will test is sent to the power quality chip and micro-
Processor；The temperature sensor is connected on the current-carrying conductor of breaker, for detecting current-carrying conductor temperature, and will test
Signal is sent to the microprocessor；The power quality chip obtains power quality ginseng according to line voltage, the circuit of input
Number, and power quality parameter is exported to the microprocessor；The microprocessor according to voltage sensor, current sensor,
Signal acquisition load condition parameter, the breaker performance parameter, electricity consumption, overload of temperature sensor and the input of power quality chip
Situation, temperature rise and power quality, and using the above- mentioned information obtained, to the operation shape of breaker, load and place electricity system
State is monitored to be assessed with potential risk, and assessment result and corresponding control instruction are sent to the communication module,
Corresponding control instruction is sent to the executing agency simultaneously；The executing agency includes the division of relay unit and breaker
Lock operating unit is executed and is closed to the separating brake, closing operation or breaker of breaker according to the control instruction that microprocessor is sent
The switch of the relay unit under lock state operates；The communication module be the microprocessor and the external equipment,
Terminal computer, APP provide the communication and transmission of data, instruction；The power module is the power quality chip, micro process
Device, communication module, voltage sensor, current sensor and temperature sensor power supply.
The load condition parameter includes the load impedance value connecting with the breaker, active power, reactive power, view
In the variation of power, power factor and above-mentioned parameter.
The breaker performance parameter include circuit breaker contact persistence, temperature rise of conductor, open and close times, drop-out current peak value or
Virtual value, arc energy, the fair flux of heat, the arcing time, arc duration constant, arc energy dissipation factor, peak arc voltage,
Blowout voltage.
The electricity consumption is the electricity consumption that branch equipment is connect with breaker.
The overload situations include whether breaker principal current overloads and the duration and number of overlond running.
The power quality includes frequency departure, voltage deviation, voltage fluctuation and flicker, three-phase imbalance, instantaneous or temporarily
State overvoltage, wave distortion, voltage dip, interruption, temporarily liter and power supply continuity.
The microprocessor is using the above- mentioned information obtained, to the potential risk of breaker, load and place electricity system
It is assessed, is specifically included:
1, it using the load condition data, is compared with the load condition of history, passes through the variation of load condition, Yi Jiyu
The health condition of electrical equipment and route is assessed in the comparison of the threshold value set in micro-control unit；Or utilize engineering
The health characteristics that algorithm obtains electrical equipment and route operates normally are practised, and based on this to the health of electrical equipment and route
Situation is assessed；
2, using the breaker performance parameter, circuit-breaker status parameter comparison with history is joined by circuit-breaker status
Several variations and the comparison with the threshold value set in micro-control unit, to the health status and remaining life of breaker itself
It is assessed；Or the health characteristics that breaker operates normally are obtained using machine learning algorithm, and based on this to breaker
The health status and remaining life of itself are assessed；
3, using the overload situations, by the comparison with preset threshold value, to the potential risk of electricity system into
Row assessment.
Preset overloading threshold is lower than the overload action current value of breaker thermal tripping, overload in the microprocessor
When failure, the executing agency of the breaker intelligent monitoring and protective module acts before breaker thermal tripping；And work as institute
When the breaker intelligent monitoring and protective module stated are broken down, the thermal tripping system of breaker plays back-up protection function.
The microprocessor judges the opening and closing state of breaker according to collected circuit breaker voltage and current signal:
When there is current signal, breaker is "on" position；It is gate-dividing state when no current, having voltage；When no current, no-voltage
When, it is unpowered state.
Beneficial effect
A kind of breaker intelligent monitoring proposed by the present invention and protective module, have the advantage that
1, breaker intelligent monitoring proposed by the present invention and protective module, are used cooperatively with breaker, the inspection with electricity
Survey, communication, the electric property of remote control function and breaker itself and remaining life detection function, substantially mention
The high intelligent level of breaker defencive function.
2, by the detection to a variety of electric quantity signals of breaker and to power quality, load condition parameter, breaker performance
The analysis of parameter, electricity consumption, overload situations is realized to the operation stability and safety of electrical equipment, electrical equipment and line
The potential risk of the health condition on road, the health status of breaker itself and remaining life and electricity system is assessed, from
Distribution system, electrical equipment, the multi-faceted of breaker improve the safety and reliability of electricity consumption.
Detailed description of the invention
Fig. 1 is breaker intelligent monitoring provided in an embodiment of the present invention and protective module and breaker block diagram.
Specific embodiment
Now in conjunction with embodiment, attached drawing, the invention will be further described:
As shown in Figure 1, breaker intelligent monitoring provided by the invention and protective module, by voltage sensor, current sense
Device, temperature sensor, power quality chip, microprocessor, power module, executing agency and communication module composition.The voltage
The signal that sensor, current sensor and temperature sensor will test is sent to the microprocessor and the power quality core
Piece, the output signal of the power quality chip are also sent to the microprocessor, and the microprocessor is by data processed result
It is sent to the executing agency or the communication module with instruction, the communication module is that the microprocessor is set with the outside
Standby, terminal computer, APP provide the communication and transmission of data, instruction, and the power module is the power quality chip, micro-
Processor, communication module, voltage sensor, current sensor and temperature sensor power supply.
The voltage sensor is connected across between the three-phase end of incoming cables of breaker respectively and the disengaging line end of breaker, uses
The electric arc electricity of on-state voltage drop and electric current interrupting process under detection line voltage, the dynamic and static contact "on" position of breaker
Pressure.
The current sensor uses Hall sensor, is socketed on the three-phase inlet wire conducting wire of breaker, is used for detection stream
Cross the electric current and leakage current of contact of breaker.
The temperature sensor is connected on the current-carrying conductor of breaker, for detecting current-carrying conductor temperature.
The power quality chip, input terminal are connect with the voltage sensor and the current sensor, output end
It connect with the microprocessor, exports for detecting power quality parameter, and by power quality parameter to the microprocessor.
The microprocessor, the letter detected for acquiring the voltage, electric current, temperature sensor and power quality chip
Number, and following information: load condition parameter, breaker performance parameter, electricity consumption, mistake is further obtained based on collected signal
Load situation, temperature rise and power quality.
Further, the load condition parameter mainly includes the load impedance value connecting with the breaker, wattful power
The variation of rate, reactive power, apparent energy, power factor and above-mentioned parameter.
Further, breaker performance parameter mainly includes circuit breaker contact persistence, temperature rise of conductor, open and close times, cut-offs
Current peak or virtual value, arc energy, heat fair flux, arcing time, arc duration constant, arc energy dissipation factor, electricity
Arc voltage peak value, blowout voltage.
Further, the electricity consumption is the electricity consumption that branch equipment is connect with breaker.
Further, the overload situations mainly include whether breaker principal current overloads and overlond running
Duration and number.
Further, the power quality that the microprocessor obtains mainly includes frequency departure, voltage deviation, voltage
Fluctuation and flickering, three-phase imbalance, instantaneous or transient overvoltage, wave distortion (harmonic wave), voltage dip, interruption, temporarily rise and
Power supply continuity.
Further, the microprocessor is using the above- mentioned information obtained, to breaker, load and place electricity system
Operating status and potential risk are assessed, comprising: are commented the operation stability and health condition of electrical equipment and route
Estimate, the health status and remaining life of breaker itself are assessed, the potential risk of electricity system is assessed.
Further, the microprocessor utilizes the load condition data, compares with the load condition of history, by negative
The variation of load state and comparison with the threshold value set in micro-control unit, to the health condition of electrical equipment and route into
Row assessment；Or the health characteristics of electrical equipment and route normal operation are obtained using machine learning algorithm, and right based on this
Electrical equipment and the health status of route are assessed.
Further, the microprocessor utilizes the breaker performance parameter, the circuit-breaker status parameter pair with history
Than by the variation of circuit-breaker status parameter and the comparison with the threshold value set in micro-control unit, to breaker itself
Health status and remaining life are assessed；Or the health characteristics that breaker operates normally are obtained using machine learning algorithm, and
The health status and remaining life of breaker itself are assessed based on this.
Further, the microprocessor utilizes the overload situations, by the comparison with preset threshold value, to
The potential risk of electric system is assessed.
The above-mentioned signal data and assessment result that the microprocessor will test are sent to communication module and executing agency.
The communication module by the signal data received and assessment result be sent to external equipment or terminal computer,
APP；The instruction of the also acceptable external equipment of the communication module or terminal computer, APP, and send microprocessor or execution to
Mechanism.
The executing agency includes the breaking-closing operating unit of relay unit and breaker, is sent according to microprocessor
Control instruction executes the switch to the relay unit under the separating brake of breaker, closing operation or breaker closing state
Operation.
The relay unit and breaker are connected in series.
The power module is the microprocessor, power module, executing agency, communication module power supply.
Preset overloading threshold is lower than the overload action current value of breaker thermal tripping, overload fault in microprocessor
When, the executing agency of breaker intelligent monitoring and protective module acts before breaker thermal tripping；And when breaker is intelligently supervised
When control is broken down with protective module, the thermal tripping system of breaker plays back-up protection function.
Microprocessor judges the opening and closing state of breaker according to collected circuit breaker voltage and current signal；When having
When current signal, breaker is "on" position；It is gate-dividing state when no current, having voltage；When no current, no-voltage, it is
Unpowered state.
Claims (9)
1. a kind of breaker intelligent monitoring and protective module, it is characterised in that passed including voltage sensor, current sensor, temperature
Sensor, power quality chip, microprocessor, power module, executing agency and communication module；The voltage sensor bridges respectively
Between the three-phase end of incoming cables of breaker and the disengaging line end of breaker, for detecting line voltage, the dynamic and static contact of breaker
The arc voltage of on-state voltage drop and electric current interrupting process under "on" position, and the signal that will test is sent to the electric energy matter
Measure chip and microprocessor；The current sensor uses Hall sensor, is socketed on the three-phase inlet wire conducting wire of breaker, uses
The electric current and leakage current of contact of breaker are flowed through in detection, and the signal that will test is sent to the power quality chip and Wei Chu
Manage device；The temperature sensor is connected on the current-carrying conductor of breaker, for detecting current-carrying conductor temperature, and the letter that will test
Number it is sent to the microprocessor；The power quality chip obtains power quality parameter according to line voltage, the circuit of input,
And power quality parameter is exported to the microprocessor；The microprocessor is according to voltage sensor, current sensor, temperature
Sensor and the signal acquisition load condition parameter of power quality chip input, breaker performance parameter, electricity consumption, overload shape
Condition, temperature rise and power quality, and using the above- mentioned information obtained, to the operating status of breaker, load and place electricity system
It is monitored and is assessed with potential risk, and assessment result and corresponding control instruction are sent to the communication module, together
When to the executing agency send corresponding control instruction；The executing agency includes the divide-shut brake of relay unit and breaker
Operating unit executes separating brake, closing operation or breaker closing to breaker according to the control instruction that microprocessor is sent
The switch of the relay unit under state operates；The communication module is the microprocessor and the external equipment, end
Computer, APP is held to provide the communication and transmission of data, instruction；The power module is the power quality chip, micro process
Device, communication module, voltage sensor, current sensor and temperature sensor power supply.
2. a kind of breaker intelligent monitoring according to claim 1 and protective module, it is characterised in that the load condition
Parameter includes the load impedance value connecting with the breaker, active power, reactive power, apparent energy, power factor, and
The variation of above-mentioned parameter.
3. a kind of breaker intelligent monitoring according to claim 1 and protective module, it is characterised in that the breaker
Can parameter include circuit breaker contact persistence, temperature rise of conductor, open and close times, drop-out current peak value or virtual value, arc energy, heat permit
Flux, arcing time, arc duration constant, arc energy dissipation factor, peak arc voltage, blowout voltage.
4. a kind of breaker intelligent monitoring according to claim 1 and protective module, it is characterised in that the electricity consumption is
The electricity consumption of branch equipment is connect with breaker.
5. a kind of breaker intelligent monitoring according to claim 1 and protective module, it is characterised in that the overload situations
Whether overloaded including breaker principal current and the duration and number of overlond running.
6. a kind of breaker intelligent monitoring according to claim 1 and protective module, it is characterised in that the power quality
Including frequency departure, voltage deviation, voltage fluctuation and flicker, three-phase imbalance, instantaneous or transient overvoltage, wave distortion, electricity
Pressure is temporarily dropped, interrupted, temporarily rising and power supply continuity.
7. a kind of breaker intelligent monitoring according to claim 1 and protective module, it is characterised in that the microprocessor
Using the above- mentioned information of acquisition, the potential risk of breaker, load and place electricity system is assessed, is specifically included:
1, it using the load condition data, is compared with the load condition of history, variation and and micro-control by load condition
The health condition of electrical equipment and route is assessed in the comparison of the threshold value set in unit processed；Or it is calculated using machine learning
The health characteristics that method obtains electrical equipment and route operates normally, and based on this to the health status of electrical equipment and route
It is assessed；
2, using the breaker performance parameter, circuit-breaker status parameter comparison with history passes through circuit-breaker status parameter
Variation and the comparison with the threshold value set in micro-control unit, health status and remaining life to breaker itself carry out
Assessment；Or the health characteristics that breaker operates normally are obtained using machine learning algorithm, and based on this to breaker itself
Health status and remaining life assessed；
3, the potential risk of electricity system is commented by the comparison with preset threshold value using the overload situations
Estimate.
8. a kind of breaker intelligent monitoring according to claim 1 and protective module, it is characterised in that the microprocessor
In preset overloading threshold be lower than the overload action current value of breaker thermal tripping, when overload fault, the breaker
The executing agency of intelligent monitoring and protective module acts before breaker thermal tripping；And when the breaker intelligent monitoring with
When protective module breaks down, the thermal tripping system of breaker plays back-up protection function.
9. a kind of breaker intelligent monitoring according to claim 1 and protective module, it is characterised in that the microprocessor
According to collected circuit breaker voltage and current signal, the opening and closing state of breaker is judged: when there is current signal, breaker
For "on" position；It is gate-dividing state when no current, having voltage；It is unpowered state when no current, no-voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910475437.3A CN110190588A (en) | 2019-06-03 | 2019-06-03 | Breaker intelligent monitoring and protective module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910475437.3A CN110190588A (en) | 2019-06-03 | 2019-06-03 | Breaker intelligent monitoring and protective module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110190588A true CN110190588A (en) | 2019-08-30 |
Family
ID=67719833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910475437.3A Pending CN110190588A (en) | 2019-06-03 | 2019-06-03 | Breaker intelligent monitoring and protective module |
Country Status (1)
| Country | Link |
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| CN (1) | CN110190588A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806537A (en) * | 2019-10-11 | 2020-02-18 | 交控科技股份有限公司 | Method and system for monitoring state of air switch |
| 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 |
| CN111665401A (en) * | 2020-06-13 | 2020-09-15 | 义乌市德义物联网科技有限公司 | Assembled low-voltage Internet of things intelligent monitoring system |
| CN112782571A (en) * | 2020-03-25 | 2021-05-11 | 天津市中力神盾电子科技有限公司 | Method, device and system for monitoring service life of circuit breaker |
| CN112865026A (en) * | 2020-12-30 | 2021-05-28 | 珠海铠湾智电科技有限公司 | Intelligent power distribution method and system with automatic fire safety |
| CN113189481A (en) * | 2021-05-21 | 2021-07-30 | 江苏大学 | Electric power instrument with circuit breaker service life monitoring function and monitoring method |
| CN115128442A (en) * | 2022-06-23 | 2022-09-30 | 国网福建省电力有限公司 | Dynamic evaluation method for electrical life of circuit breaker based on full-life operation information |
| CN115498593A (en) * | 2022-11-11 | 2022-12-20 | 浙江万胜智能科技股份有限公司 | Control method and system of intelligent power utilization multiple protector |
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| CN113189481A (en) * | 2021-05-21 | 2021-07-30 | 江苏大学 | Electric power instrument with circuit breaker service life monitoring function and monitoring method |
| CN115128442A (en) * | 2022-06-23 | 2022-09-30 | 国网福建省电力有限公司 | Dynamic evaluation method for electrical life of circuit breaker based on full-life operation information |
| CN115498593A (en) * | 2022-11-11 | 2022-12-20 | 浙江万胜智能科技股份有限公司 | Control method and system of intelligent power utilization multiple protector |
| CN115498593B (en) * | 2022-11-11 | 2023-04-28 | 浙江万胜智能科技股份有限公司 | Control method and system of intelligent electricity utilization multiple protector |
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