Analysis on an abnormal voltage sag of 400V motor

Huadian Technology ›› 2018, Vol. 40 ›› Issue (1): 46-49.

Previous Articles Next Articles

Analysis on an abnormal voltage sag of 400V motor

1.Wanneng Tongling Power Generation Company Limited, Tongling 244012，China；2.State Nuclear Power Engineering Company Limited，Shanghai 200233，China

Published:2018-01-25

Abstract

Abstract:

Focusing on a tripping event of a 400V auxiliary under condition of voltage sagging, analysis is made according to the operation mode and fault type, to find out the fundamental cause of the incident. Through calculating the probability of similar incidents since diverse fault, in order to improve the reliability of equipment’s operation, a modified design of 400V devices is proposed.

Key words:

voltage sag, trip, control power, fault type, probability

YE Pengzhen1，SU Xing1，ZHANG Guangyun2.

Analysis on an abnormal voltage sag of 400V motor

[J]. Huadian Technology, 2018, 40(1): 46-49.

[1]	FENG Guangming. Unit tripping risk analysis hidden behind the failure of deaerator admission check valve [J]. Huadian Technology, 2019, 41(1): 72-73.
[2]	HE Zhongcai. Analysis and research on the leaking causes of fuel triple duty valves [J]. Huadian Technology, 2018, 40(6): 49-50.
[3]	JIANG Zhihui, WANG Yaokun. Gas turbine excitation protection action tripping accident analysis and processing [J]. Huadian Technology, 2018, 40(11): 24-26.
[4]	SUN Guoqiang. Cause analysis and improvement measures of oil system faults in feed water pumps turbine [J]. Huadian Technology, 2018, 40(11): 45-47.
[5]	HAN Zhiyuan1, WANG Guangjian2, ZHANG Xiaojing1, ZHOU Yan1, FU KeJian2. Application of large transformer comprehensive fault diagnosis based on fault model [J]. Huadian Technology, 2018, 40(10): 22-26.
[6]	HAN Lina, LI Shaogang. Analysis and treatment of the tripping cause of a 1000MW unit boiler air preheater [J]. Huadian Technology, 2018, 40(1): 22-26.
[7]	YUAN Shitong. Super (ultra) critical unit low load MFT cause analysis and improvement strategy [J]. Huadian Technology, 2017, 39(7): 48-51.
[8]	FU Sicong. 350MW unit electricbag precipitator trip cause analysis and treatment [J]. Huadian Technology, 2017, 39(7): 71-72.
[9]	TIAN Yuqin. Reason analysis of 380V switch override in desulfurization system and its treatments [J]. Huadian Technology, 2017, 39(3): 53-54.
[10]	CHANG Wenhao. Coal mine main inclined shaft belt conveyor improvement technology [J]. Huadian Technology, 2017, 39(11): 20-21.
[11]	CHENG Wenguang, CAO Yungai. Several types of coal storage equipment in strip storage [J]. Huadian Technology, 2017, 39(11): 39-42.
[12]	CHEN Haojie. Incident of field loss protection caused by line tripping analysis [J]. Huadian Technology, 2017, 39(1): 61-62.
[13]	CHEN Zhifeng. Gas engine triple cogeneration system flue gas denitration analysis [J]. Huadian Technology, 2017, 39(1): 71-72.
[14]	ZHANG Wei,LI Yuping,KANG Feng,CHEN Qingxu,YE Pinyong. Ring grid distributed type arc protection system for intelligent substation [J]. Huadian Technology, 2016, 38(5): 11-14.
[15]	LIU Hong. Radial seal transformation of rotary air preheater and its economical analysis [J]. Huadian Technology, 2016, 38(5): 36-37.

Analysis on an abnormal voltage sag of 400V motor

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments