电力系统自动化Issue(4)：115-122,8.DOI:10.7500/AEPS20130718013
快速切除220 kV变压器死区故障的继电保护方案
Relay Protection Scheme of Rapid Removal of 220 kV Transformer Fault
摘要
Abstract
It takes a rather long time to remove a dead zone fault occurring between the breaker on a certain side of the 220 kV transformer and the transformer differential protection mutual inductor by means of the supply side of transformer backup protection action or another side of the transformer circuit breaker tripping.As this is a transformer exit fault,it is likely to cause damage to the transformer.An analysis is made of the fault characteristics during 220 kV transformer fault in dead zones on all sides of the transformer and the related protective action features.By drawing on the principles of currently operating bus differential protection in the tie breaker failure protection and the dead zone circuit breaker failure protection,four protection principle schemes of fast removal of dead zone on each side of 220 kV transformer fault are proposed and rational value taking for the dead zone fault protection transformer short delay is studied.关键词
继电保护/死区故障/变压器/快速切除/方案Key words
relay protection/dead zone fault/transformer/rapid removal/scheme引用本文复制引用
汤大海,陈永明,曹斌,潘书燕,龙锋..快速切除220 kV变压器死区故障的继电保护方案[J].电力系统自动化,2014,(4):115-122,8.基金项目
江苏省电力公司科技项目(J2013052) （J2013052）
已申请国家发明专利(申请号:201210452783.8,201210453319.0,201310165705.4,201310165747.8)。 （申请号:201210452783.8,201210453319.0,201310165705.4,201310165747.8）
