CN206725642U - insulator leakage current on-line monitoring system - Google Patents
insulator leakage current on-line monitoring system Download PDFInfo
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- CN206725642U CN206725642U CN201721093129.7U CN201721093129U CN206725642U CN 206725642 U CN206725642 U CN 206725642U CN 201721093129 U CN201721093129 U CN 201721093129U CN 206725642 U CN206725642 U CN 206725642U
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Abstract
Description
Claims (9)
- A kind of 1. insulator leakage current on-line monitoring system, it is characterised in that:Including for gathering insulator leakage current Current monitoring unit, the processing unit being connected with the current monitoring unit output end and for processing unit provide work The power subsystem of electricity consumption;The current monitoring unit includes monitoring current transformer and the electricity being connected with the secondary coil of monitoring current transformer Stream process circuit;The current processing circuits include rectification circuit ZL1, resistance R3, resistance R4, voltage-stabiliser tube DW1 and amplifier U1;It is described whole Current circuit ZL1 positive input terminal connects with negative input end respectively at the both ends of the secondary coil of monitoring current transformer, rectified current The output end on road is connected to amplifier U1 backward end, amplifier U1 in-phase end ground connection by resistance R3, and amplifier U1 output end is made Processing unit is connected to for the output end of current processing circuits, the both ends of the resistance R4 are connected to amplifier U1 backward end And output end, voltage-stabiliser tube DW1 negative pole are connected to the points of common connection between resistance R3 and rectification circuit ZL1 output end, surely Pressure pipe DW1 plus earth, rectification circuit ZL1 negative input end ground connection;The current monitoring unit also includes the first protection circuit for monitoring for protection current transformer, the first protection electricity Road includes two-way transient diode TVS1, resistance R1, electric capacity C1, resistance R2, relay J1, optocoupler G1, resistance R5, triode Q1 And resistance R9;One end of the two-way transient diode TVS1 is connected to rectification circuit ZL1 positive input terminal and monitoring current transformer Points of common connection between secondary coil, the other end are grounded by resistance R1, and electric capacity C1 one end is connected to the two-way pole of transient state two Points of common connection between pipe TVS1 and resistance R1, electric capacity C1 other end ground connection, the positive pole of optocoupler G1 light emitting diode connect The points of common connection being connected between two-way transient diode TVS1 and resistance R1, the negative pole ground connection of optocoupler G1 light emitting diode, The colelctor electrode of optocoupler G1 phototriode connects power supply VCC, the grounded emitter of optocoupler G1 phototriode, optocoupler G1 collection Electrode is connected with resistance R5 one end, and the resistance R5 other end connects as the protection trigger signal output end of the first protection circuit In the input of processing unit, triode Q1 base stage is connected to the control output end of processing unit, triode Q1 colelctor electrode Contact relay power supply IC3 output end, triode Q1 emitter stage are connected to one end of relay J1 coil by resistance R9, The other end ground connection of relay J1 coil, relay J1 normal open switch J1-K1 one end is being connected to rectification circuit ZL1 just Points of common connection between input and two-way transient diode TVS1, the relay J1 normal open switch J1-K1 other end lead to Cross resistance R2 ground connection.
- 2. insulator leakage current on-line monitoring system according to claim 1, it is characterised in that:The processing unit includes Control circuit IC1, address setting circuit ADS1, Mobile Communication Circuit MK1 and reset switch;The current signal input of the control circuit IC1 is connected with amplifier U1 output end, the address setting circuit ADS1 It is connected with control circuit IC1, the monitoring signals output end of the control circuit IC1 is connected and controlled with Mobile Communication Circuit MK1 IC circuit 1 is connected by Mobile Communication Circuit MK1 with Surveillance center.
- 3. insulator leakage current on-line monitoring system according to claim 2, it is characterised in that:The control circuit IC1 For STC15F2K60S2 chips.
- 4. insulator leakage current on-line monitoring system according to claim 2, it is characterised in that:The Mobile Communication Circuit MK1 is 3G module, 4G modules or GPRS communication modules.
- 5. insulator leakage current on-line monitoring system according to claim 1, it is characterised in that:The power subsystem includes Taking can current transformer, rectification circuit ZL2, voltage stabilizing process circuit IC2 and voltage-stabiliser tube DW2;It is described take can current transformer be arranged on transmission line of electricity, it is described take can current transformer secondary coil both ends difference Rectification circuit ZL2 positive input terminal and negative input end are connected to, rectification circuit ZL2 negative input end is grounded, rectification circuit ZL2's Output end is connected with voltage stabilizing process circuit IC2 input, the output end output 3.3V voltages of the voltage stabilizing process circuit IC2 VCC is simultaneously powered to processing unit, and the input of the voltage stabilizing process circuit ZL2 is connected with voltage-stabiliser tube DW2 negative pole, voltage-stabiliser tube DW2 plus earth.
- 6. insulator leakage current on-line monitoring system according to claim 5, it is characterised in that:The power subsystem also wraps Include the second protection circuit that energy current transformer is taken for protecting;Second protection circuit includes two-way transient diode TVS2, resistance R6, electric capacity C2, resistance R7, relay J2, optocoupler G2, resistance R8, triode Q2 and resistance R10;One end of the two-way transient diode TVS2 is connected to rectification circuit ZL2 positive input terminal and takes energy current transformer Points of common connection between secondary coil, the other end are grounded by resistance R6, and electric capacity C2 one end is connected to the two-way pole of transient state two Points of common connection between pipe TVS2 and resistance R6, electric capacity C2 other end ground connection, the positive pole of optocoupler G2 light emitting diode connect The points of common connection being connected between two-way transient diode TVS2 and resistance R6, the negative pole ground connection of optocoupler G2 light emitting diode, The colelctor electrode of optocoupler G2 phototriode connects power supply VCC, the grounded emitter of optocoupler G2 phototriode, optocoupler G2 collection Electrode is connected with resistance R8 one end, and the resistance R8 other end connects as the protection trigger signal output end of the second protection circuit In the input of processing unit, triode Q2 base stage is connected to the control output end of processing unit, triode Q2 colelctor electrode Contact relay power supply IC3 output end, triode Q2 emitter stage are connected to the one of relay J2 coil by resistance R10 End, the other end ground connection of relay J2 coil, relay J2 normal open switch J2-K1 one end is connected to rectification circuit ZL2 Positive input terminal and two-way transient diode TVS2 between points of common connection, relay J2 normal open switch J2-K1's is another End is grounded by resistance R2.
- 7. insulator leakage current on-line monitoring system according to claim 5, it is characterised in that:The voltage stabilizing process circuit IC2 is LM2596 chips.
- 8. insulator leakage current on-line monitoring system according to claim 2, it is characterised in that:The address setting circuit ADS1 is toggle switch.
- 9. insulator leakage current on-line monitoring system according to claim 6, it is characterised in that:The relay power IC3 is MC34063 chips.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201721093129.7U CN206725642U (en) | 2017-08-29 | 2017-08-29 | insulator leakage current on-line monitoring system |
Applications Claiming Priority (1)
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CN201721093129.7U CN206725642U (en) | 2017-08-29 | 2017-08-29 | insulator leakage current on-line monitoring system |
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CN206725642U true CN206725642U (en) | 2017-12-08 |
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CN201721093129.7U Withdrawn - After Issue CN206725642U (en) | 2017-08-29 | 2017-08-29 | insulator leakage current on-line monitoring system |
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CN (1) | CN206725642U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107345979A (en) * | 2017-08-29 | 2017-11-14 | 国家电网公司 | insulator leakage current on-line monitoring system |
CN109708697A (en) * | 2018-12-28 | 2019-05-03 | 国家电网有限公司 | Softswitch running state monitoring system |
CN112782546A (en) * | 2020-12-31 | 2021-05-11 | 国家电网有限公司 | Insulator leakage current acquisition system |
-
2017
- 2017-08-29 CN CN201721093129.7U patent/CN206725642U/en not_active Withdrawn - After Issue
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107345979A (en) * | 2017-08-29 | 2017-11-14 | 国家电网公司 | insulator leakage current on-line monitoring system |
CN109708697A (en) * | 2018-12-28 | 2019-05-03 | 国家电网有限公司 | Softswitch running state monitoring system |
CN109708697B (en) * | 2018-12-28 | 2021-09-07 | 国家电网有限公司 | Soft exchange equipment running state monitoring system |
CN112782546A (en) * | 2020-12-31 | 2021-05-11 | 国家电网有限公司 | Insulator leakage current acquisition system |
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information | ||
CB03 | Change of inventor or designer information |
Inventor after: Hu Xin Inventor after: Dai Cheng Inventor after: Xiao Jingwei Inventor after: Zhu Yunyou Inventor after: Chen Ke Inventor after: Zhuo Ling Inventor after: Ai Qianke Inventor after: Zhao Zihao Inventor after: Wang Xiaohui Inventor before: Hu Xin Inventor before: Dai Cheng Inventor before: Xiao Jingwei Inventor before: Zhu Yunyou Inventor before: Chen Ke Inventor before: Zhuo Ling Inventor before: Ai Qianke |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20171220 Address after: 401121 Chongqing city Yubei District Qingfeng Road No. 20 Development Zone A6 building Co-patentee after: Chongqing pan Zhong science and Technology Co., Ltd. Patentee after: Information Communication Branch State Grid Chongqing Electric Power Co., Ltd. Address before: 401121 Chongqing city Yubei District Qingfeng Road No. 20 Development Zone A6 building Patentee before: Information Communication Branch State Grid Chongqing Electric Power Co., Ltd. |
|
AV01 | Patent right actively abandoned | ||
AV01 | Patent right actively abandoned | ||
AV01 | Patent right actively abandoned |
Granted publication date: 20171208 Effective date of abandoning: 20200505 |
|
AV01 | Patent right actively abandoned |
Granted publication date: 20171208 Effective date of abandoning: 20200505 |