Design of locking circuit for preventing misoperation of grounding switch in low voltage side of transformer

SHI Shengyang, LI Shizhao.

[J]. Huadian Technology, 2017, 39(3): 60-61.

[1]	WANG Zhe，GUO Xiao，XING Wu，HU Bing. Research on characteristics and mechanism of transformer fifth harmonic under overexcitation condition [J]. Huadian Technology, 2019, 41(5): 22-27.
[2]	MA Jinping. Inspection and processing of excessive gas content in transformer oil [J]. Huadian Technology, 2018, 40(7): 35-37.
[3]	ZHANG Xuefeng. The maloperation of common variable ratio differential protection caused by the main transformer zero sequence CT disconnection [J]. Huadian Technology, 2018, 40(6): 26-27.
[4]	KANG Zhenhua. Online monitoring technology and case analysis of large power transformer oil chromatography [J]. Huadian Technology, 2018, 40(3): 17-20.
[5]	WU Xinjie. Discussion over oil sampling techniqueused in oilimmersed transformer filledwith nitrogen [J]. Huadian Technology, 2018, 40(2): 46-47.
[6]	ZHU Da. Initial investigation of online test of transformer pressure relief valve [J]. Huadian Technology, 2018, 40(1): 42-43.
[7]	ZHAO Qian1,2, ZOU Lei1,2, CHEN Fufeng1,2, XUE Mingjun1,2, GONG Shimin1,2, LI Yuping1,2. Interval integration design for in situ relay protection of transformer substation [J]. Huadian Technology, 2017, 39(9): 1-5.

PDF