电网技术2012，Vol.36Issue(12)：283-288,6.
油田35kV系统电压互感器高压熔断器异常熔断故障的抑制措施
A Countermeasure to Deal With Abnormal Fusing of High Voltage Fuse for Potential Transformer in 35 kV Oilfield Power Distribution System
王明钦 1陈维江 2李永君 3张晓雷 3董伯东 3边凯 1詹花茂 1邓凡良3
作者信息
- 1. 华北电力大学电气与电子工程学院,北京市昌平区102206
- 2. 国家电网公司,北京市西城区100031
- 3. 大庆石油管理局电力集团,黑龙江省大庆市163453
- 折叠
摘要
Abstract
In recent years, frequent abnormal fusing occurred in high voltage fuses with rated current of 0.5A for potential transformers (PT) of Daqing oilfield distribution network seriously affect the secure and reliable operation of the distribution system. In allusion to this defect, firstly the statistical analysis on the fusing failure of HV fuse for PT is performed; secondly by means of EMTP-based simulation and experiments the reasons causing abnormal fusing of HV fuse are analyzed in both aspects of system transient characteristics and fusing characteristics of HV fuse. Analysis results show that the abnormal fusing of HV fuse is a comprehensive problem, caused by combined impacts of system transient characteristics and fusing characteristics of HV fuse for PT. On this basis, a countermeasure is proposed, that is, the rated current of 0.5A of HV fuse for PT is upgraded to 2A. the effectiveness of the proposed countermeasure is verified by operating results of pilot substation.关键词
35kV系统/电压互感器/高压熔断器/额定电流/分散性Key words
35 kV distribution system/ potential transformer (PT)/ high voltage fuse/ rated current/ dispersity分类
信息技术与安全科学引用本文复制引用
王明钦,陈维江,李永君,张晓雷,董伯东,边凯,詹花茂,邓凡良..油田35kV系统电压互感器高压熔断器异常熔断故障的抑制措施[J].电网技术,2012,36(12):283-288,6.
