open-circuit excitation

... open-circuit curve 开路特性曲线，空载曲线 open-circuit excitation 空载励磁，开路励磁 open-circuit fault 开路故障 ...

... open-circuit curve 开路特性曲线，空载曲线 open-circuit excitation 空载励磁，开路励磁 open-circuit fault 开路故障 ...