主变10.5kV侧母线接地保护技术

Simple Analyzing on The Non-synchronously Closing of Feilaixia HPP's Isolator,Causing The Activation of 10.5kV Bus Bar Earthing Protection of Main Transformer

阐述了飞来峡电厂5101刀闸的非同步合闸的原因以及非同步合闸后引起1#主变10.5kV 母线接地保护动作的原因。

This paper simply expounds the reason of the non-synchronously closing of named 5101 as well as the reason of the activation of 10.5KV bus bar earthing protection of 1# main transformer after of isolator.