The equivalent circuit, the phase diagram as well as the torque-speed characteristic in the braking state are obtained.
较完整地得出：处在能耗制动时，异步电动机特有的等值电路、相量图及机械特性。
At the time of failure, no matter what kind of start state of voltage phase, the zero-sequence transient current has the characteristic of inverse phase.
在故障时刻，无论故障相电压的相位处在何种初始状态下，都有零序电流反向的特征。
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