Guangzhou Power Supply Co., Ltd.

Huazhong University of Science and Technology

Wenxiong Mo

Yong Wang

Jing Liu

Wei Wang

Hui Zeng

Qin Xu

Yuan Pan

Haibo Su

Junjia He

Zhao Yuan

Lixue Chen

Fating Yuan

Binbin He

Zhuya Li

Peiwei Wu

Kaijian Wu

Haoyong Song

Chongzhi Zhao

Yuqing Chen

Liqiang Pei

Qingdan Huang

Yaru Zhang

Junxiang Liu

Yuging Chen

Jiqiang Pei

A transformer simulation system and a measurement method for setting value simulation are disclosed. The transformer simulation system includes an oil tank, a heating device, a pump body, a first oil pipe, a second oil pipe and a first flow sensor. The heating device is disposed in the oil tank. The oil tank is provided with a first inlet and a first outlet, the first outlet is connected to the first oil pipe, and the first inlet is connected to the second oil pipe. An end of the first oil pipe away from the oil tank is a first mounting end for being connected to an oil inlet of a gas relay, and an end of the second oil pipe away from the oil tank is a second mounting end for being connected to an oil outlet of the gas relay. The pump body is connected to the first oil pipe or the second oil pipe, and the first flow sensor is disposed in the first oil pipe. The above-described transformer simulation system can measure the oil flow velocity, that is the setting value of the gas relay, and the type of the insulation oil in the oil tank can be replaced, then the corresponding setting value of the gas relay is obtained, so as to prevent the original gas relay from not playing the role of the protection due to a different property of the insulation oil.

Transformer simulation system, and simulation and measurement method for setting value

A short circuit fault current limiter includes a circuit breaker, a transfer current limiting unit and a current detection unit. The current detection unit is connected to the circuit breaker in series, and the circuit breaker and the transfer current limiting unit are connected in parallel into the power system line. An output terminal of the current detection unit is connected to a control terminal of the transfer current limiting unit. The current detection unit is configured to detect a fault current flowing through a branch of the circuit breaker under a short circuit fault operating condition and trigger the corresponding trigger switch of the transfer current limiting unit to be switched on, so that the circuit breaker is disconnected and the secondary side winding of the coupling reactor is connected to the system line in series, which is capable of rapidly limiting the amplitude of the fault current and reducing impact of the fault current on the system.

Short circuit fault current limiter

Growing community of inventors

Guangzhou, China

Wenxiong Mo