Breaker partial discharge fault and arc light short circuit fault monitoring device

• Main Authors: XIANG QIGUANG, YE MAOQUAN, YUAN WEIMING, YANG LEI, SUN DEXING, JIANG SHAOMIN, ZHOU ZHUOWEI, ZHANG QINGBO, ZHANG KE, HUANG XIANWU, LUO JUNJIE, TANG JINYAO, WU ZHUOQUAN, XIE LONGYU, WU HUANKE, YANG SONG, LIU JIANDA, YANG ZHENGCHANG, WU RUHAO
• Format: Patent
• Language: Chinese; English
• Published: 09.10.2020
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; TARIFF METERING APPARATUS; TESTING

The invention discloses a breaker partial discharge fault and arc light short circuit fault monitoring device. The device comprises an adjustable optical fiber F-P filter circuit, a D/A conversion circuit, an amplification circuit, an FPGA chip, a photoelectric detector, a photoelectric conversion circuit, an A/D conversion circuit, a clock circuit and a USB communication circuit. The D/A conversion circuit, the A/D conversion circuit, the clock circuit and the USB communication circuit are respectively connected with the FPGA chip; the amplification circuit is connected with the D/A conversion circuit and the adjustable optical fiber F-P filter circuit. The photoelectric conversion circuit is respectively connected with the A/D conversion circuit and the photoelectric detector; and the adjustable optical fiber F-P filter circuit is connected with the photoelectric detector. The invention discloses a fiber bragg grating demodulation system based on an FPGA. In the demodulation process,an optical signal is mai