System for monitoring partial discharge of power distribution facilities
A monitoring system and facility technology, applied in the direction of testing dielectric strength, etc., can solve the problems of poor real-time monitoring information, increased labor intensity of staff, unable to ensure the safe and stable operation of the power system, etc., to ensure safe and stable operation, detection and elimination. Hidden faults and the effect of real-time monitoring
Inactive Publication Date: 2015-04-29
STATE GRID CORP OF CHINA +2
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Problems solved by technology
At present, the power sector generally uses manual inspections to monitor whether there is partial discharge in power distribution facilities, which not only increases the labor intensity of the staff, but also has poor real-time monitoring information, which cannot ensure the safe and stable operation of the power system.
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[0019] see figure 1 , the present invention includes a monitoring computer and a plurality of monitoring units, and the monitoring units transmit monitoring information to the monitoring computer through a mobile communication network and the Internet.
[0020] see figure 2 , the monitoring unit includes a single-chip microcomputer U1, an RFID tag, an RFID reader, a partial discharge sensor and a wireless communication module U2, the partial discharge sensor includes a detection coil L and a signal conditioning circuit encapsulated in a resin shell 2, and the signal conditioning circuit includes a filter LB , signal amplifier FD, transistor Q and resistor R, the partial discharge sensor is installed near the power distribution facility to collect the partial discharge signal of the power distribution facility, and the RFID reader is used to read the identity information stored in the RFID tag of the power distribution facility, The single-chip microcomputer U1 uploads the in...
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A system for monitoring partial discharge of power distribution facilities comprises a monitoring computer and monitoring terminals mounted near the power distribution facilities, wherein each monitoring terminal comprises a partial discharge sensor, an RFID (radio frequency identification) reader, a single-chip microcomputer and a wireless communication module, each partial discharge sensor is mounted near each monitored power distribution facility, a signal output end of each partial discharge sensor is connected with an input port of each single-chip microcomputer, each RFID reader corresponds to an RFID tag on each power distribution facility, an output end of each RFID reader is connected with the input port of each single-chip microcomputer, and each single-chip microcomputer sends monitoring information to the monitoring computer through each wireless communication module. With the adoption of the system, when a partial discharge signal is detected by the aid of a detection coil, failure information and identity information of the power distribution facilities are sent to the monitoring computer together, so that the partial discharge is monitored in real time; the labor intensity of workers can be reduced, the system can assist the workers in finding out and eliminating potential failures timely, and safe and stable operation of an electric power system is guaranteed.
Description
technical field [0001] The invention relates to a device capable of real-time monitoring of partial discharge phenomena in power distribution facilities and timely uploading of monitoring information, belonging to the technical field of monitoring. Background technique [0002] Partial discharge is the main cause of insulation faults in power distribution facilities such as high-voltage circuit breakers and drop insurance. Real-time monitoring of partial discharge in power distribution facilities will help to eliminate hidden troubles in time and ensure the normal operation of the power system. At present, the power sector generally uses manual inspections to monitor whether there are partial discharges in power distribution facilities, which not only increases the labor intensity of the staff, but also has poor real-time monitoring information, which cannot ensure the safe and stable operation of the power system. Contents of the invention [0003] The purpose of the pres...
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IPC IPC(8): G01R31/12
Inventor 金涛刘东亮张树亮李良刘志远李国鹏赵俊蕾赵文哲刘明辉纪勇白昆王朝阳张敬平蒋曦季鹏程王云霞金蕾王伟王占辉
Owner STATE GRID CORP OF CHINA