10v switchgear internal discharge detection device based on electromagnetic wave antenna receiving array
A receiving array and detection device technology, applied in the field of 10V switch cabinet internal discharge detection device based on electromagnetic wave antenna receiving array, can solve problems such as switch cabinet failure and explosion, and achieve the effect of ensuring mass communication management
Active Publication Date: 2016-08-24
STATE GRID CORP OF CHINA +1
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Problems solved by technology
10V switchgear partial discharge data is usually only used to detect the current fault, and switchgear partial discharge will eventually lead to switchgear failure or even explosion is a long-term process
Method used
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Embodiment Construction
[0021] Embodiments of the present invention are further described below in conjunction with accompanying drawings:
[0022] like figure 1 As shown, the 10V switch cabinet internal discharge detection device based on the electromagnetic wave antenna receiving array of the present invention includes an antenna array receiver, and the antenna array receiver is connected to a variable gain amplifier, and the variable gain amplifier is connected to the circuit through the current signal to voltage signal Band-pass filter, band-pass filter is connected to A / D converter, A / D converter is connected to D / A converter through data communication module, D / A converter is connected to microprocessor, and microprocessor is connected to fault information display screen and data storage module;
[0023] The antenna array receiver is set outside the cabinet of the switch cabinet to receive the microwave signal emitted by the partial discharge, and transmit the received microwave signal to the ...
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The invention discloses a detection device, and particularly relates to a 10-V switch cabinet internal discharge detection device based on an electromagnetic wave antenna receiving array. The 10-V switch cabinet internal discharge detection device based on the electromagnetic wave antenna receiving array comprises an antenna array receiver connected with a variable gain amplifier, wherein the variable gain amplifier is connected with a band-pass filter through a current signal and voltage signal conversion circuit, the band-pass filter is connected with an A / D convertor, the A / D convertor is connected with a D / A convertor through a data communication module, the D / A convertor is connected with a microprocessor, and the microprocessor is connected with a fault information display screen and a data storage module. The 10-V switch cabinet internal discharge detection device based on the electromagnetic wave antenna receiving array is simple in structure, microwave signals, emitted by partial discharge, around a 10-V switch cabinet can be monitored all the day in an on-line mode, then internal discharge faults of the 10-V switch cabinet can be monitored on line, the practicability is high, mass measurement data can be stored due to the storage module, and management on in-time mass communication between the detection device and a backstage service system is guaranteed through the communication module.
Description
technical field [0001] The invention discloses a detection device, in particular to a 10V switch cabinet internal discharge detection device based on an electromagnetic wave antenna receiving array, in particular to a device and a measurement method including fault location and fault type judgment. Background technique [0002] The application range of 10V switchgear is huge, and the operating environment is different. Due to the long-term switching process, understanding the stage of its aging process is of great significance to the safe operation of the power system. At present, the detection of partial discharge in switchgear is based on real-time monitoring of the presence or absence of discharge. There is no indicator that can be quantified and monitored that can accurately reflect the aging process of the switchgear. The distribution of power devices in the 10V switchgear is concentrated, and the problems caused by partial discharge are different. It is necessary to d...
Claims
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IPC IPC(8): G01R31/12
Inventor 刘兴华孙学锋黄锐王涛吕学宾吕俊涛杜修明张用于芃云玉新朱孟兆马艳岳增伟崔川徐天锡周诚
Owner STATE GRID CORP OF CHINA