题目内容

220kV及以上电压等级的输电线路继电保护双重化配置的要求不包含( )。

A. 纵联保护
B. 后备保护
C. 瓦斯保护
D. 保护电源、跳闸电源

查看答案

搜索结果不匹配？点我反馈

更多问题

为了提高电力系统并列运行的稳定性,缩小故障元件的损坏程度,继电保护必须具有( )。

A. 灵敏性
B. 可靠性
C. 选择性
D. 速动性

纵联保护只能在被保护元件的内部故障时动作,而不反应外部故障,具有(对故障的)绝对选择性。( )

A. 对
B. 错

Chinese Foreign Minister Tang Jiaxuan said that while differences remained among various parties on how to solve the Iraqi crisis, the majority of countries in the world stand for a political solution and the opposition to war is pervailing.

英译汉In the organization of industrial life the influence of the factory upon the physiological and mental state of the workers has been completely neglected.