问题 多项选择题

关于电流比校核的注意事项,下列说法正确的是()。

A.若电流互感器有多个二次绕组,测量部分绕组变比时,其他绕组应使用短路线进行短接,避免出现二次绕组开路状态

B.接标准电流互感器及被试电流互感器二次绕组至表计的连接线的电阻之和通常不大于0.06Ω

C.穿心式电流互感器电流比校核时,一次导线应处于互感器的中心位置

D.在运行变电站测量电流互感器变比时,必须退出该电流互感器的保护装置,以免引起保护误动

答案

参考答案:A, B, C, D

选择题
改错题
短文改错。此题要求改正所给短文中的错误。对标有题号的每一行作出判断:如无错误,在
该行右边横线上画一个勾(√);如有错误(每行只有一个错误),则按下列情况改正:
此行多一个词:把多余的词用斜线(\)划掉,在该行右边横线上写出该词,并也用斜线划掉。
此行缺一个词:在缺词处加一个漏字符号(∧),在该行右边横线上写出该加的词。
此行错一个词:在错的词下划一横线,在该行右边横线上写出改正后的词。
注意:原行没有错的不要改。
     It was a chance of a lifetime to win a first          
prize on the Story Writing Show. All I had to do        
was to write a story or present it. My teachers         
have been telling me how great my writing was.          
So if they had said was true, I would have a chance     
of winning the prize. What were better, I had useful    
help. There was Uncle Chen, gentleman living            
near my house, who was a very much famous writer.       
He agreed to reading my story and give me some        
advices on how to write like a real writer.           
1._______      
2._______        
3._______    
4._______          
5._______        
6._______                     
7._______        
8._______        
9._______           
10._______