CN206272213U - A kind of electronic trip unit of twin coil sample strip electric quantity monitoring function - Google Patents
A kind of electronic trip unit of twin coil sample strip electric quantity monitoring function Download PDFInfo
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- CN206272213U CN206272213U CN201621200616.4U CN201621200616U CN206272213U CN 206272213 U CN206272213 U CN 206272213U CN 201621200616 U CN201621200616 U CN 201621200616U CN 206272213 U CN206272213 U CN 206272213U
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- electric quantity
- quantity monitoring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
- Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/12—Remote or cooperative charging
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Abstract
The utility model provides a kind of electronic trip unit of twin coil sample strip electric quantity monitoring function, it is characterized in that, including current mutual inductor with hollow coil and iron-core coil current transformer for gathering three-phase current signal, voltage transformer for gathering three-phase voltage signal, the output signal of current mutual inductor with hollow coil is via respective conditioning amplifying unit one input three section protection MCU, on the one hand the output signal of iron-core coil current transformer is input into self-supply power source unit, on the other hand via respective conditioning amplifying unit two input electric quantity monitoring MCU, the output signal of voltage transformer is also input into electric quantity monitoring MCU via respective conditioning amplifying unit three, electric quantity monitoring MCU is communicated with host computer.The utility model realizes defencive function by hollow coil transformer, and electric quantity monitoring function is realized by iron-core coil current transformer, can be with Real-time Collection electrical parameter.
Description
Technical field
The utility model is related to a kind of breaker of plastic casing electronic trip unit of twin coil sample strip electric quantity monitoring function.
Background technology
With the development of Power System Intelligent technology, systems at different levels are configured with large number of electric quantity data acquisition and pass
Sensor, but each not subordination, functional redundancy, breaker of plastic casing is used as the important composition that the underlying platform of component level is power system
, can be there is overload or automatic shutdown circuit during short trouble in part, but traditional breaker of plastic casing only possesses three-stage protection function,
Electric quantity data acquisition function is not had.
A kind of electronic trip units of intelligent plastic casing break of Chinese patent CN201120197266.1, Chinese patent
A kind of electronic trip units of CN200810166495.X, these electronic trip units only possess defencive function；Chinese patent
A kind of ships of CN201310123396.4 press vacuum circuit breaker intelligent electrical apparatus release in using, it is noted that electric quantity acquisition, but are not two-wires
Circle sampling.The hollow coil transformer linearity is good, does not have saturated phenomenon, but hollow coil belongs to di/dt type transformers, needs signal
Conditioning unit is integrated treatment, and so current signal of sampling has phase difference with actual current, it is impossible to accurately calculate active
Power；And the current signal of iron-core coil mutual inductor sample is consistent with actual current phase, it is easy to calculate under power, but high current
Easy saturation, the linearity is bad, unfavorable to protecting.
The content of the invention
The purpose of this utility model is to propose that a kind of breaker of plastic casing electronics of twin coil sample strip electric quantity monitoring function takes off
Button device, forms the bottom data acquisition platform of unified, component level, saves numerous redundancy electricity data sampling sensors, leads to
Crossing communication interface is available for superior systems at different levels flexibly to call data, realizes system intelligent management and protects.
In order to achieve the above object, the technical solution of the utility model there is provided a kind of twin coil sample strip electric quantity monitoring
The electronic trip unit of function, it is characterised in that including current mutual inductor with hollow coil and iron for gathering three-phase current signal
Core coil current transformer, the voltage transformer for gathering three-phase voltage signal, the output letter of current mutual inductor with hollow coil
Number via it is respective conditioning amplifying unit one input three section protection MCU, by three section protection MCU by trip unit control dropout machine
On the one hand structure, the output signal of iron-core coil current transformer is input into self-supply power source unit, on the other hand via respective conditioning
Amplifying unit two is input into electric quantity monitoring MCU, and the output signal of voltage transformer is also input into via respective conditioning amplifying unit three
Electric quantity monitoring MCU, electric quantity monitoring MCU is communicated with host computer.
Preferably, the electric quantity monitoring MCU is communicated by Modbus communication units, CAN communication unit and host computer.
The utility model devises a kind of breaker of plastic casing electronic trip unit of twin coil sample strip electric quantity monitoring function, its
Defencive function is realized by hollow coil transformer, electric quantity monitoring function is realized by iron-core coil current transformer, except tradition
Long delay, short time delay, outside instantaneous three-stage protection function, with electric quantity monitoring function, can be with Real-time Collection three-phase current, electricity
The electrical parameters such as pressure, frequency, active power, apparent energy, power factor, breaker division state, by CAN and 485
Bus communication module is uploaded to host computer, for system references at different levels and decision-making.
Brief description of the drawings
A kind of principle of the electronic trip unit of twin coil sample strip electric quantity monitoring function that Fig. 1 is provided for the utility model
Figure.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage more understand understandable, to combine instantiation, to this
Utility model is further described.
The utility model provides a kind of electronic trip unit of twin coil sample strip electric quantity monitoring function, including for gathering
The current mutual inductor with hollow coil and iron-core coil current transformer of three-phase current signal, the electricity for gathering three-phase voltage signal
Pressure transformer, the output signal of current mutual inductor with hollow coil is input into three section protection MCU via respective conditioning amplifying unit one,
The output signal of tripping mechanism, iron-core coil current transformer is controlled on the one hand to be input into by trip unit by three section protection MCU
Self-supply power source unit, on the other hand via respective conditioning amplifying unit two input electric quantity monitoring MCU, the output of voltage transformer
Signal also be input into electric quantity monitoring MCU via respective conditioning amplifying unit three, electric quantity monitoring MCU pass through Modbus communication units,
CAN communication unit is communicated with host computer.
Current mutual inductor with hollow coil is sieve formula coil, defeated after the conditioned amplifying unit treatment of collection three-phase current signal
Enter three section protection MCU samplings to be AD converted, when there is overload or short trouble, outputing signal to trip unit and driving dropout
Mechanism makes circuit breaker trip.
Iron-core coil current transformer is fast saturable inductor, its function one be inductive energy be supplied to self-supply power source power supply to
Whole electronic trip unit is powered, and its function two is to gather the electric current in the range of rated current, because the electric current of hollow coil collection
There is phase difference with actual current, it is impossible to calculate active power, therefore with iron-core coil current transformer electric quantity monitoring function
Current signal, after the conditioned amplifying unit treatment of collection three-phase current signal, the MCU samplings of input electric quantity monitoring are AD converted,
After the conditioned amplifying unit treatment of the three-phase voltage signal of voltage transformer collection simultaneously, being also input into electric quantity monitoring MCU samplings is carried out
AD conversion, can calculate active power, apparent energy, power factor, by voltage sample by three-phase voltage and three-phase current
Frequency can be also calculated, by detecting that auxiliary contact also can obtain breaker division state, three section protection MCU can also be by a high speed
Bus will protect setup parameter and transmitting fault information to give electric quantity monitoring MCU, these electrical parameters, protection setup parameter and failure
Information can be uploaded to host computer by Modbus communication units, CAN communication unit, while host computer can be by communication unit reality
Existing remote control and the remote regulating of protection setup parameter.
Although the utility model illustrates the utility model with reference to examples detailed above, it should be understood that can wherein make various changes and
Modification and in a broad sense without departing from the utility model, so be not intended as to the utility model limit, as long as this practicality newly
In the spirit of type, the change to embodiment described above, deformation falls within the utility model claim
Protection domain.
Claims (2)
1. a kind of electronic trip unit of twin coil sample strip electric quantity monitoring function, it is characterised in that including for gathering three-phase electricity
Flow the current mutual inductor with hollow coil and iron-core coil current transformer, the mutual induction of voltage for gathering three-phase voltage signal of signal
Device, the output signal of current mutual inductor with hollow coil is input into three section protection MCU via respective conditioning amplifying unit one, by three sections
Protection MCU controls the output signal of tripping mechanism, iron-core coil current transformer to be on the one hand input into self-powered by trip unit
Source unit, on the other hand via respective conditioning amplifying unit two input electric quantity monitoring MCU, the output signal warp of voltage transformer
Electric quantity monitoring MCU is also input into by respective conditioning amplifying unit three, electric quantity monitoring MCU is communicated with host computer.
2. a kind of electronic trip unit of twin coil sample strip electric quantity monitoring function as claimed in claim 1, it is characterised in that institute
Electric quantity monitoring MCU is stated to be communicated by Modbus communication units, CAN communication unit and host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621200616.4U CN206272213U (en) | 2016-11-07 | 2016-11-07 | A kind of electronic trip unit of twin coil sample strip electric quantity monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621200616.4U CN206272213U (en) | 2016-11-07 | 2016-11-07 | A kind of electronic trip unit of twin coil sample strip electric quantity monitoring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206272213U true CN206272213U (en) | 2017-06-20 |
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ID=59038244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621200616.4U Active CN206272213U (en) | 2016-11-07 | 2016-11-07 | A kind of electronic trip unit of twin coil sample strip electric quantity monitoring function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206272213U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114280354A (en) * | 2021-12-21 | 2022-04-05 | 镇江市百汇电器有限公司 | Three-phase system non-contact high-voltage live detection circuit |
-
2016
- 2016-11-07 CN CN201621200616.4U patent/CN206272213U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114280354A (en) * | 2021-12-21 | 2022-04-05 | 镇江市百汇电器有限公司 | Three-phase system non-contact high-voltage live detection circuit |
| CN114280354B (en) * | 2021-12-21 | 2023-11-14 | 镇江市百汇电器有限公司 | Non-contact high-voltage live detection circuit of three-phase system |
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