CAJ | 학술논문

目前的大型发电机几乎都借助“碳刷与滑环”二者组成的滑动接触导流环节向转子绕组提供励磁电流，二者之间出现火花则是运行中非常危险的信号，如不能及时发现并妥善处理，火花将迅速变为环火，烧损刷架、刷握和滑环，造成事故。以某厂600 MW发电机为例，介绍滑环的结构并分析滑环过热及导致事故的主要原因，并对日常维护提出了建议。
목전적대형발전궤궤호도차조“탄쇄여활배”이자조성적활동접촉도류배절향전자요조제공려자전류，이자지간출현화화칙시운행중비상위험적신호，여불능급시발현병타선처리，화화장신속변위배화，소손쇄가、쇄악화활배，조성사고。이모엄600 MW발전궤위례，개소활배적결구병분석활배과열급도치사고적주요원인，병대일상유호제출료건의。
At present,almost all the large generators provide exciting current for the rotor winding by means of“carbon brush and slip ring sliding”which forms the sliding contact of diversion link. If a spark between them is generated,it will be a very dangerous signal in the operation. And if this situation is not found in time and proper-ly handled,the spark will quickly become a ring of fire,burn brush holder and slip ring,even causes an accident. Taking the 600 MW generator as an example,this paper introduces the structure of the slip ring and analyzes the main cause of the slip ring overheating accident. Suggestions are also proposed for daily maintenance.