关键词:
分析
溶解气体
电气器具
电气工程
电绝缘材料
电绝缘
电驱动装置
萃取
气体分析
气体
浸渍的
浸渍材料
电感线圈
仪表用变压器
绝缘材料
方法
充油电气设备
油
污染控制
电力变压器
抽样方法
规范(验收)
测试
作业试验
标准号:
BS EN 61181-2007
摘要:
This International Standard specifies oil-sampling procedures, analysis requirements andprocedures, and recommends sensitivity, repeatability and accuracy criteria for the applicationof dissolved gas analysis (DGA) to factory testing of new power transformers, reactors andinstrument transformers filled with mineral insulating oil when DGA testing has been *** most effective and useful application of DGA techniques to factory testing is during theperformance of long-term tests, typically temperature-rise (heat run) and overloading tests onpower transformers and reactors, also impulse tests on instrument transformers. DGA mayalso be valuable for over-excitation tests run over an extended period of *** with DGA results, before and after short-time dielectric tests, indicates that DGAis normally less sensitive than electrical and acoustic methods for detecting partialdischarges. However, DGA will indicate when these partial discharges become harmful to theinsulation and may be detected by inspection [2].