摘要
阐述了一种高压异步电动机内部参数不对称故障分析计算,以实际运行中故障率较高的定子线圈一相断线为例进行分析,从而达到判断故障方向的目的。其可靠性优于行波方向保护,且具有较高的灵敏度。通过对电动机负序电流产生原因和对保护的影响进行分析,对高压电动机综合保护的定值整定方法进行了分析。
This paper elaborated one kind of high-pressured asynchronous motor interior parameter asymmetric failure analysis computation,afailure rate high stator coil broken line carries on the analyss,taking the actual movement in as the example,thus achieves the goal of diagnosising direction.Its reliability srupasses the traveling wave direction protection,and has the high sensitivity,through the sequence of electrical current generated negative reasons and the electric motor negative sequence electric current the influence carries on the analysis to the protecdtion,has carried on the analysis to the high-tension motor synthesis protection＇sdefinite value installation method.
出处
《机电一体化》
2008年第7期89-90,92,共3页
Mechatronics
关键词
不对称
负序电流
继电保护
asymmetrical negative sequence electric current relay protection
