CN208738822U - A kind of circuit breaker intelligent controller and breaker - Google Patents
A kind of circuit breaker intelligent controller and breaker Download PDFInfo
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- CN208738822U CN208738822U CN201821529580.3U CN201821529580U CN208738822U CN 208738822 U CN208738822 U CN 208738822U CN 201821529580 U CN201821529580 U CN 201821529580U CN 208738822 U CN208738822 U CN 208738822U
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- circuit breaker
- electric energy
- current transformer
- intelligent controller
- module
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Abstract
The utility model discloses a kind of circuit breaker intelligent controllers, including the mutual inductor and signal acquisition module for acquiring signal, for the electric energy measurement module of survey calculation electrical energy parameter, for measuring the protection control module of protection processing and control；The mutual inductor and signal acquisition module include Rogowski coil current transformer, iron core current transformer, three-phase voltage sensor; Rogowski coil current transformer and three-phase voltage sensor are for electric current, voltage signal needed for providing survey calculation electrical energy parameter for electric energy measurement module, current signal needed for iron core current transformer is used to provide measurement protection processing and control for protection control module.The invention also discloses a kind of breakers.The utility model has the advantages that low cost, miniaturization while realizing electric energy measurement management function.
Description
Technical field
The utility model relates to a kind of circuit breaker intelligent controllers.
Background technique
With the development of society, the demand to electric power is higher and higher；Simultaneously as the raising of economic strength, the electricity used
The type and quantity of power equipment are more and more, and widely distributed, higher and higher to the quality requirement of power supply；Simultaneously as ring
Border pressure is increasing, and the efficiency used the energy is higher and higher.Therefore, in power supply and distribution field, the demand of energy management is more next
More, traditional breaker of plastic casing, due to only providing the function of protection, the function of electric energy measurement, does not have been unable to meet energy
The requirement of source control.Traditional design scheme mostly uses greatly breaker+instrument with electric energy management function design scheme,
The disadvantages of there are at high cost, volume is big, system complex, is not able to satisfy the requirement of system compact, low cost.In addition, traditional
Electronic type molded case circuit breaker is, it can be achieved that the functions such as long delay protection, short delay protection, instantaneous protection, due to that need to realize a variety of guarantors
Protective function, from one to more than ten times of several points of rated current, span reaches decades of times, mutual inductor for the setting range of protective current
Design can not only be able to satisfy the requirement of high-acruracy survey using current protection range as design standard.It needs to design one kind at present
The equipment that low cost, miniaturization, high-acruracy survey require, to meet the increasingly developed market demand.
Utility model content
The technical problem to be solved by the utility model is to overcome the shortage of prior art, provide a kind of inexpensive, small-sized
The circuit breaker intelligent controller with electric energy measurement management function changed.
The utility model circuit breaker intelligent controller is used including the mutual inductor and signal acquisition module for acquiring signal
In the electric energy measurement module of survey calculation electrical energy parameter, for measuring the protection control module of protection processing and control；It is described mutual
Sensor and signal acquisition module include Rogowski coil current transformer, iron core current transformer, three-phase voltage sensor, Roche line
Electric current needed for loop current mutual inductor and three-phase voltage sensor are used to provide survey calculation electrical energy parameter for electric energy measurement module,
Voltage signal, electric current letter needed for iron core current transformer is used to provide measurement protection processing and control for protection control module
Number.
Further, the iron core current transformer is also used to power supply supply.
Further, the circuit breaker intelligent controller further includes the human-machine interface module for carrying out human-computer interaction.
Preferably, the human-machine interface module includes display unit, adjusting unit, communication unit.
Preferably, the electric energy measurement module includes the electrical energy measurement of a built-in integrator and programmable signal amplifier
Chip and associated peripheral circuits.
Following technical scheme can also be obtained according to identical invention thinking:
A kind of breaker, including as above circuit breaker intelligent controller described in any technical solution.
Compared with prior art, technical solutions of the utility model and its further improvement or optimal technical scheme have with following
Beneficial effect:
The utility model uses the design of double mutual inductors, and protection uses traditional iron core mutual inductor with mutual inductor, can meet
The realization of defencive function and the needs of self energizing；Electric energy measurement mutual inductor uses high-precision Rogowski (Roche) coil
Current transformer can meet the requirement that high precision electro is capable of measuring.
The utility model using high-precision electric energy computation chip carry out electric energy measurement management, can directly with Rogowski line
The connection of ring type current transformer.Traditional Rogowski coil formula current transformer output signal need to pass through integrating circuit, signal
Conditioning circuit can just be transformed into the accessible signal of MCU.And the built-in integral of electric energy computation chip used in the utility model
Device, programmable signal amplifier can directly handle the signal of Rogowski coil type current transformer output, can reduce circuit
Plate suqare meets the needs of breaker miniaturization, simultaneously as the reduction of component, also reduces the cost of breaker.
Detailed description of the invention
Fig. 1 is the structural block diagram of one preferred embodiment of the utility model circuit breaker intelligent controller；
Fig. 2 is the structural block diagram of mutual inductor and signal acquisition module；
Fig. 3 is the structural block diagram for protecting control module.
Specific embodiment
The technical solution of the utility model is described in detail with reference to the accompanying drawing:
Fig. 1 shows the basic structure of one preferred embodiment of the utility model circuit breaker intelligent controller.Such as Fig. 1 institute
Show, which includes the mutual inductor and signal acquisition module for acquiring signal, for survey calculation electrical energy parameter
Electric energy measurement module, for measuring the protection control module of protection processing and control, for realizing the man-machine interface of human-computer interaction
Module, and the power module of working power is provided for circuit breaker intelligent controller.
As shown in Fig. 2, mutual inductor and signal acquisition module include: the Rogowski coil connecting with electric energy measurement module
Current transformer and corresponding sampling unit, three-phase voltage sensor and corresponding sampling unit；Successively with protection control module
Iron core current transformer, rectification unit and the sampling unit of connection.
As shown in figure 3, electric energy measurement module acquisition Rogowski coil current transformer and the output of three-phase voltage sensor
Electric current and voltage signal, the electric energy measurement module in the present embodiment includes a built-in integrator and programmable signal amplifier
High-precision electric energy computation chip and associated peripheral circuits, it is mutual that electric energy computation chip can directly acquire Rogowski coil formula electric current
The output signal of sensor and three-phase voltage sensor calculates the information such as electric current, voltage, power, electric energy, frequency, harmonic wave.
Electric energy measurement module uses Rogowski coil, has the characteristics that with high accuracy, meets the requirement of measurement module；Electric energy
Measurement module uses different mutual inductors from the current sampling mutual inductor of protection control module, meets high-precision measurement respectively and wants
Quickly protection requires for summation.
Protecting control module includes current signal front-end processing unit and MCU processing unit.Current signal front-end processing list
The current sampling signal that iron core current transformer exports is transformed into A/D module built in MCU after treatment and can directly sampled by member
The voltage signal of processing；MCU processing unit includes MCU and related peripheral device, and MCU processing unit acquires current signal, in real time
The current value flowed through in breaker is calculated, the processing of related defencive function, while MCU processing unit and electric energy measurement mould are carried out
Block is connected, and receives the coherent signals such as electric current, voltage, power, electric energy, frequency, the harmonic wave that electric energy measurement module is calculated, and uses
The functions such as show, communicate in realizing.
Human-machine interface module is connected with protection control module comprising display unit, adjusting unit, communication unit.It is aobvious
Show the relevant informations such as unit real-time display voltage, electric current, for user query；The setting that unit is used for breaker protection value is adjusted,
It can be key or dial-up mode；Communication unit can be connect with host computer, realize that breaker remote, remote regulating, remote signalling, telemetering etc. four is distant
Function.
It can be by iron core current transformer from protecting by the power module that circuit breaker intelligent controller provides working power
Major loop in collecting energy, power supply needed for being converted to circuit breaker intelligent controller；External power supply can also be connected simultaneously, it is raw
At power supply needed for circuit breaker intelligent controller, to guarantee in breaker low current, iron core current transformer generate energy compared with
Hour, power supply needed for also capable of generating circuit breaker intelligent controller.
Associated voltage involved in the utility model, current signal processing, AD sampling and electric energy calculate measurement, protection control
System etc. is existing mature technology, and for the sake of saving space, it is not explained in further detail.
Claims (6)
1. a kind of circuit breaker intelligent controller is used for meter including the mutual inductor and signal acquisition module for acquiring signal
The electric energy measurement module for calculating electrical energy parameter, for measuring the protection control module of protection processing and control；It is characterized in that, described
Mutual inductor and signal acquisition module include Rogowski coil current transformer, iron core current transformer, three-phase voltage sensor, Roche
Coil current mutual inductor and three-phase voltage sensor are for electricity needed for providing survey calculation electrical energy parameter for electric energy measurement module
Stream, voltage signal, electric current needed for iron core current transformer is used to provide measurement protection processing and control for protection control module
Signal.
2. circuit breaker intelligent controller as described in claim 1, which is characterized in that the iron core current transformer is also used to power supply
Supply.
3. circuit breaker intelligent controller as described in claim 1, which is characterized in that further include for carrying out the man-machine of human-computer interaction
Interface module.
4. circuit breaker intelligent controller as claimed in claim 3, which is characterized in that the human-machine interface module includes that display is single
Member, adjusting unit, communication unit.
5. circuit breaker intelligent controller as described in claim 1, which is characterized in that the electric energy measurement module includes built in one
The electric energy computation chip and associated peripheral circuits of integrator and programmable signal amplifier.
6. a kind of breaker, which is characterized in that including the circuit breaker intelligent controller as described in any one of Claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821529580.3U CN208738822U (en) | 2018-09-19 | 2018-09-19 | A kind of circuit breaker intelligent controller and breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821529580.3U CN208738822U (en) | 2018-09-19 | 2018-09-19 | A kind of circuit breaker intelligent controller and breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208738822U true CN208738822U (en) | 2019-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821529580.3U Active CN208738822U (en) | 2018-09-19 | 2018-09-19 | A kind of circuit breaker intelligent controller and breaker |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112951670A (en) * | 2019-12-10 | 2021-06-11 | 华为数字技术（苏州）有限公司 | Circuit breaker with current detection function and communication power supply |
| CN113295917A (en) * | 2021-04-08 | 2021-08-24 | 国网上海能源互联网研究院有限公司 | Protection device sampling unit based on combination of Rogowski coil and LPCT |
| CN113496854A (en) * | 2020-04-03 | 2021-10-12 | 天津首瑞智能电气有限公司 | Multi-phase/pole circuit breaker |
| WO2022151877A1 (en) * | 2021-01-15 | 2022-07-21 | 常熟开关制造有限公司(原常熟开关厂） | Disconnection detection method and apparatus for dual-core current transformer, and breaker |
-
2018
- 2018-09-19 CN CN201821529580.3U patent/CN208738822U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112951670A (en) * | 2019-12-10 | 2021-06-11 | 华为数字技术（苏州）有限公司 | Circuit breaker with current detection function and communication power supply |
| CN113496854A (en) * | 2020-04-03 | 2021-10-12 | 天津首瑞智能电气有限公司 | Multi-phase/pole circuit breaker |
| WO2022151877A1 (en) * | 2021-01-15 | 2022-07-21 | 常熟开关制造有限公司(原常熟开关厂） | Disconnection detection method and apparatus for dual-core current transformer, and breaker |
| CN113295917A (en) * | 2021-04-08 | 2021-08-24 | 国网上海能源互联网研究院有限公司 | Protection device sampling unit based on combination of Rogowski coil and LPCT |
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