当组合电源系统不是满配置时,如何保证三相平衡,避免引起零线电流过大?
参考答案:
应尽量将整流模块均匀挂接在交流三相上,以保证三相平衡,否则会引起零线电流过大,系统发生故障。
词汇。根据句意、首字母或汉语提示完成单词。
1. Students today have too much homework. They need time to______ (放松).
2. Father Christmas always______ (装满)the special bags with presents.
3. Who lives______ (靠近)to school in your class?
4. Don't speak loudly. The baby is______ (睡觉).
5. There is some______ (粉笔)in the box on the platform.
6. I think football is more b______ than basketball.
7. I'm busy now and I don't have any f ______ time.
8. They are going to travel a______ the world.
9. China has the largest p______ in the world.
10.Beijing is the c______ of China.
食品加工过程中发现的不合格品应()
A、作废品处理
B、返回进行重新加工
C、作为职工福利分发下去,职工自行处理
D、按制度规定进行处理。