Special transformer oil level gauge for turn-to-turn short circuit test

• Main Authors: LUO YONGRUN, YANG ZHICHENG, YANG XINSEN, CHEN JIANMAO, HONG RUIYUAN, GUO GUOWEI, LU ZHIXIN, XU JIAN, HUANG SHENG, ZHAN XIMEI, WEI BEN, DENG RICHAO, YU MENGQI, GU WENSHENG, FENG ZHANHAO
• Format: Patent
• Language: Chinese; English
• Published: 14.07.2023
• Subjects: ALARM SYSTEMS; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; ORDER TELEGRAPHS; PHYSICS; SIGNALLING; SIGNALLING OR CALLING SYSTEMS; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR

The invention relates to the technical field of transformer testing, in particular to a transformer oil level gauge special for turn-to-turn short circuit testing, which comprises an oil level gauge pipe body, a sliding rod is slidably connected in the oil level gauge pipe body, a floating ball is fixedly connected to the bottom end of the sliding rod, and an air pressure plate is slidably connected to the inner wall of the sliding rod. A column rod is fixedly connected to the top of the air pressure plate, a turn-to-turn short circuit alarm device is arranged in the oil level gauge pipe body, and a special installation device for testing is arranged on the surface of the oil level gauge pipe body. According to the principle that helium in a helium cavity in a floating ball expands with heat and contracts with cold, a column rod on an air pressure plate is driven to monitor the oil temperature in real time, the column rod is controlled to drive a clamping rod on a differential rotating block and a knocking pl