QIAN Qing-lin, LU Huai-dong, WAN Chun, et al. FAULT ANALYSIS AND TREATMENT FOR A TYPICAL STRAND-TO-STRAND SHORT CIRCUIT OF TRANSFORMER WINDING[J]. High voltageapparatus, 2003, (6): 66-68.
QIAN Qing-lin, LU Huai-dong, WAN Chun, et al. FAULT ANALYSIS AND TREATMENT FOR A TYPICAL STRAND-TO-STRAND SHORT CIRCUIT OF TRANSFORMER WINDING[J]. High voltageapparatus, 2003, (6): 66-68.DOI:
一起典型变压器绕组股间短路跟踪分析及处理
摘要
介绍了一台180 MV·A 220 kV变压器
因制造工艺存在薄弱点
致使运行不长时间即产生过热故障
并在经受短时出口短路故障时
造成变压器低压绕组股间绝缘损坏的跟踪监督、分析和检修情况。
Abstract
A unit of 180 MV·A/220 kV power transformer was subjected to an over-heat stress in spite of a short-duration service due to defect in manufacturing. When encountering a short-circuit incident at transformer terminal
the strand-to-strand insulation of transformer secondary winding was broken down. The process of analysis and treatment is presented in this paper.