Patents Assigned to GUANGZHOU POWER SUPPLY CO. LTD.
-
Patent number: 11309703Abstract: 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.Type: GrantFiled: September 30, 2018Date of Patent: April 19, 2022Assignee: GUANGZHOU POWER SUPPLY CO., LTD.Inventors: Wenxiong Mo, Yong Wang, Qingdan Huang, Haoyong Song, Yuqing Chen, Wei Wang, Zhuya Li, Chongzhi Zhao, Jing Liu, Liqiang Pei, Yaru Zhang, Binbin He, Peiwei Wu, Qin Xu, Hui Zeng
-
Publication number: 20210336433Abstract: 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.Type: ApplicationFiled: September 30, 2018Publication date: October 28, 2021Applicant: GUANGZHOU POWER SUPPLY CO., LTD.Inventors: Wenxiong Mo, Yong Wang, Qingdan Huang, Haoyong Song, Yuqing Chen, Wei Wang, Zhuya Li, Chongzhi Zhao, Jing Liu, Liqiang Pei, Yaru Zhang, Binbin He, Peiwei Wu, Qin Xu, Hui Zeng
-
Patent number: 10756537Abstract: 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.Type: GrantFiled: November 28, 2016Date of Patent: August 25, 2020Assignees: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY, GUANGZHOU POWER SUPPLY CO., LTD.Inventors: Zhao Yuan, Junxiang Liu, Fating Yuan, Lixue Chen, Junjia He, Yuan Pan, Kaijian Wu, Yong Wang, Wenxiong Mo, Haibo Su
-
Publication number: 20200052483Abstract: 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.Type: ApplicationFiled: November 28, 2016Publication date: February 13, 2020Applicants: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY, GUANGZHOU POWER SUPPLY CO. LTD.Inventors: Zhao YUAN, Junxiang LIU, Fating YUAN, Lixue CHEN, Junjia HE, Yuan PAN, Kaijian WU, Yong WANG, Wenxiong MO, Haibo SU