单选题
1分
You are attempting to parallel two AC generators and the synchroscope pointer is revolving in the ...
You are attempting to parallel two AC generators and the synchroscope pointer is revolving in the slow direction. This indicates that the frequency of the incoming machine is _______.
参考答案: C
参考解析: 你正试图并行两个交流发电机,同步表指针是缓慢的旋转方向。这表明输入机器的频率、相位是一样的。