ANSI代码保护功能49过负荷保护TheramalRelay50电流速断保护InstantanousOvercurrentRelay50N中性点速断保护GroundOvercurrentRelay50G接地速断保护GroundOvercurrentRelay50S限时电流速断保护Time-OvercurrentRelay51定时限过电流保护Time-OvercurrentRelay51G反时限过电流保护Ground-TimeOvercurrent51N定时限接地保护UnderRestrictedOvercurrentFaultRelay50LR转子堵转保护StalledRotorProtection67P方向过电流保护ACDirectionalOvercurrentRelay67N接地方向过电流保护GroundDirectionalOvercurrentRelay67Q负序方向过电流保护Negtive-SequencyDriectionalOvercurrentRelay59过电压速断保护InstantanousOvervoltageRelay27低电压速断保护InstantanousVoltageRelay27P低电压保护UnderVoltageRelay46不平衡负载保护PhaseBlanceCurrentRelay32功率方向保护DiretionalPowerRelay25同步SynchronismCheck81频率FrequencyRelay74报警继电器AlarmRelay68联锁LockingRelay78失步Out-Of-StepPretectiveRelayAST备自投StandbyPowerAutoSwitchT温度保护TemperatureProtection21距离保护DistanceRelay87差动保护DifferentialProtectiveRelay