【判断题】
电力系统继电保护有四项基本性能要求，分别是可靠性、选择性、速动性、灵敏性
A. 对
B. 错
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答案
A
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【判断题】
有零序互感的平行线路中，一条检修停运，并在两侧挂有接地线，如果运行线路发生了接地故障，出现零序电流，会在停运检修的线路上产生感应电流，反过来又会在运行线路上产生感应电动势，使运行线路零序电流减小
A. 对
B. 错
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