Analysis on hazard of grounding fault of throughcore screw rod of drytype transformer

Huadian Technology ›› 2014, Vol. 36 ›› Issue (5): 42-42.

Analysis on hazard of grounding fault of throughcore screw rod of drytype transformer

(SDIC Qinzhou Electric Power Company Limited, Qinzhou 535008, China)

Online:2014-05-25 Published:2014-07-15

Abstract

Abstract: Abstract:The multipoint grounding fault of transformer is one of common faults of transformer. The reason of grounding fault of throughcore screw rod of drytype transformer in SDIC Qinzhou Electric Power Company Limited was analyzed , the hazard of the grounding fault was discussed. The maintenance, repair and preventing measures were proposed.

Key words: Keywords:drytype transformer, insulation, throughcore screw rod, grounding, hazard, repair

LI Feng, HUANG Kai. Analysis on hazard of grounding fault of throughcore screw rod of drytype transformer[J]. Huadian Technology, 2014, 36(5): 42-42.

[1]	NI Jiang, SUN Xinwei, XIONG Xiaoman, REN Hao, YANG Yuxuan. Ratio restraint protection for high impedance grounding faults in low resistance grounding system based on harmonic algorithm [J]. Integrated Intelligent Energy, 2022, 44(1): 80-86.
[2]	ZHU Yucong，BAO Minglei，LI Yuping，SANG Jianbin，LI Ming. Field test, analysis and recommendations for injection stator grounding protection [J]. Huadian Technology, 2019, 41(8): 38-43.
[3]	WANG Xiuxia1, WANG Xuerong1, YAN Han1, HE Yiming1, LIU Xiaobo2. Research on onepoint grounding protection of generator rotor [J]. Huadian Technology, 2018, 40(4): 19-21.
[4]	GU Mingfei, YUAN Difei. Modular prefab cabin technology in transformer substation modular construction [J]. Huadian Technology, 2018, 40(4): 36-39.
[5]	QI Jie. Fault analysis of a 600MW hydrogenerator stator winding damage [J]. Huadian Technology, 2018, 40(12): 16-19.
[6]	DU Wenhua, ZHANG Kui. Common grounding faults and troubleshooting methods for electrical equipment in thermal power plants [J]. Huadian Technology, 2018, 40(12): 20-23.
[7]	L Fei. Inspection and treatment of a multipoint ground fault of an excitation transformer core [J]. Huadian Technology, 2018, 40(12): 58-59.
[8]	JIANG Zhihui, WANG Yaokun. Gas turbine excitation protection action tripping accident analysis and processing [J]. Huadian Technology, 2018, 40(11): 24-26.
[9]	GU Jinglei1, ZHONG Shengkai2. Technology and application of a new prefabricated overhead insulation pipe [J]. Huadian Technology, 2018, 40(11): 52-54.
[10]	DU Xilai. Technical analysis and prevention for unit tripping caused by electromagnetic eddy current [J]. Huadian Technology, 2018, 40(10): 54-55.
[11]	YU Lifan1, CHENG Tu2. 6FA generator primary rotor grounding protection action treatment [J]. Huadian Technology, 2018, 40(1): 34-35.
[12]	XU Yinqing. Transformer insulation aging diagnosis based on D-S evidence theory [J]. Huadian Technology, 2017, 39(9): 20-22.
[13]	XIAO Mingwei. The incident of 220kV circuit lightning conductor heat cause analysis and treatment [J]. Huadian Technology, 2017, 39(7): 52-53.
[14]	SHI Shengyang, LI Shizhao. Design of locking circuit for preventing misoperation of grounding switch in low voltage side of transformer [J]. Huadian Technology, 2017, 39(3): 60-61.
[15]	YANG Qi, ZHAO Lujia, LUO Min, ZHANG Jianjie. Analysis of start and stop protection action caused by short circuit of PT secondary circuit [J]. Huadian Technology, 2015, 37(7): 40-42.

Analysis on hazard of grounding fault of throughcore screw rod of drytype transformer

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments