Analysis of a Over-Voltage Fault in DC Ice-Melting Device

doi:10.3969/j.issn.1008-0198.2022.01.019

Hunan Electric Power ›› 2022, Vol. 42 ›› Issue (1): 100-102.doi: 10.3969/j.issn.1008-0198.2022.01.019

• Faults and Analysis • Previous Articles Next Articles

Analysis of a Over-Voltage Fault in DC Ice-Melting Device

MO Yanjun¹, SU Wenyan², HUANG Runqing¹, WU Zhen³, ZHU Yuan⁴

1. State Grid Hunan Electric Power Company Extra High Voltage Substation Company, Changsha 410004, China;
2. Hunan Xiangdian Test and Research Institute Co., Ltd., Changsha 410004, China;
3. College of Changsha Electrical Technology, Changsha 410000, China;
4. State Grid Hunan Electric Power Company Limited Disaster Prevention and Reduction Center, Changsha 410129, China

Received:2021-09-13 Published:2025-08-05

Abstract

Abstract: This paper analyzes the a typical over-voltage fault caused by the misoperation of DC ice-melting device. It is pointed out that the direct cause of this failure is that the AC voltage output from the DC melting device reacts to the device itself and due to the protection of the surge arrester, the ice melting device can still be used normally. According to the cause of the fault, some suggestions are put forward to improve the design of the current DC melting device.

Key words: DC ice melting device, over-voltage, arrester

CLC Number:

TM752.5

MO Yanjun, SU Wenyan, HUANG Runqing, WU Zhen, ZHU Yuan. Analysis of a Over-Voltage Fault in DC Ice-Melting Device[J]. Hunan Electric Power, 2022, 42(1): 100-102.

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Analysis of a Over-Voltage Fault in DC Ice-Melting Device

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