问题
判断题
当微机型光纤纵差保护采用专用光纤时,两侧保护装置的通信方式应该是主-主方式,而采用复用光纤方式时两侧应采用从-从方式。
答案
参考答案:对
解析:
题目来源:其他
专业类型:继电保护
设备类型:线路
难度等级:一般
电压等级:其他
知识点:保护原理
当微机型光纤纵差保护采用专用光纤时,两侧保护装置的通信方式应该是主-主方式,而采用复用光纤方式时两侧应采用从-从方式。
参考答案:对
解析:
题目来源:其他
专业类型:继电保护
设备类型:线路
难度等级:一般
电压等级:其他
知识点:保护原理
选用方框中的句子完成对话,其中有两项是多余的。 Li Lei: Excuse me. 1 Mr. Smith: Yes. And you are.. . ? Li Lei: I’m Li Lei. Your friend Miss Wu is busy at the moment. She asks me to meet you. Welcome to Hangzhou, Mr. Smith. Mr. Smith: Thank you. Li Lei: By the way,2 Mr. Smith: No. This is my second time. I came here in 1998 for the first time. Li Lei: 3 Mr. Smith: I like it very much. It’s very beautiful and famous in the world. And the people here are quite friendly. 4 Li Lei: I’m glad you like the city. And now Hangzhou is becoming more and more beautiful. 5 Mr. Smith: I think so. Thank you very much for meeting me. Li Lei: It’s a pleasure.
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