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反应故障时电流增大而动作的保护为

单选题
2021-09-01 20:45
A、低电压保护
B、过电流保护
C、过负荷保护
D、过电压保护
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正确答案
B

试题解析

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对于反应故障时参数增大而动作的继电保护,计算继电保护灵敏系数时,应用( )。
反应故障时电流增大而动作的保护为
继电保护装置有按反应电流增大原理而构成的()保护,有按反应电压降低(或升高)原理而构成的()保护,有按反应电流与电压比值及其相角变比原理而构成的()保护等。
继电保护装置有按反应电流增大原理而构成的过()保护,有按反应电压降低(或升高)原理构成的()保护,有按反应电流与电压比值及其相角变化原理而构成的方向距离保护等。
对于反应故障时参数增大而动作的继电保护,计算继电保护灵敏系数时,应用()。
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