问题 问答题 简答题

线路停送电操作有哪些注意事项?

答案

参考答案:

线路停送电操作注意事项:(1)线路停送电操作,如一侧发电厂一侧变电站,一般在变电站侧停送电,发电厂侧解合环;如两侧均为变电站或发电厂,一般在短路容量大的一侧停送电,短路容量小的一侧解合环;有特殊规定的除外。(2)应考虑电压和潮流转移,特别注意防止其他设备过负荷或超过稳定限额,防止发生自励磁及线路末端电压超过允许值。(3)任何情况下严禁"约时"停送电。(4)、500KV线路高压电抗器(无专用断路器)投停操作必须在线路冷备用或检修状态下进行。

阅读理解

It’s not easy growing up. Growing up can be a real “pain” for some of us. Sometimes we feel trapped, sometimes we feel sad, sometimes we are fearful, and sometimes we just don’t understand why we can’t stay young forever. But we should take a look back on all the hardships in life with a positive attitude and learn from them. We must overcome every obstacle one small step at a time. We should realize that all of our growing pains actually turn into growing gains!

Throughout our lives we are going to face many challenges and pains, but we should never let these obstacles keep us from following our dreams. We must overcome every obstacle one small step at a time.

As a young girl, my parents forced me to do so many things that I didn’t like. They made me learn to play the violin and then the piano. At that time I hated music and I also hated them. But looking back now, I am so glad that my parents encouraged me to take music lessons. Music has enriched(丰富) my life in so many ways. I now realize that my parents and teachers wanted me to have a better life than they did themselves.

We are all going to experience growing pains, but they are just part of our life. They might seem so huge at the time, but we must be strong. Think about how we would feel if we had no challenges and lived a life like that. Life would be really boring and meaningless. The future is ours! A little hard work and sweat never hurt anyone! If we realize that these pains are just small bumps(碰撞) on our road to success, we will realize that our growing pains are actually growing gains!

小题1:The underlined word “obstacles” (in Paragraph 2) roughly means things that ______.

A.are related to your studies

B.you easily achieve

C.make you happy

D.make it difficult for you to do something小题2:How does the author now feel when remembering what her parents did for her in the past?

A.She is fearful

B.She is grateful

C.She feels trapped

D.She feels hateful小题3:We can know from the last paragraph that _____________.

A.life without challenges is dull

B.life needs no pains but sunshine and happiness

C.we should give up faced with challenges as the future is ours

D.we shouldn’t easily pay a little hard work in growing up小题4:The purpose of the passage is to tell readers____________.

A.life is full of hardships

B.growing pains can turn into growing gains in a positive way

C.everyone is painful in growing up

D.everyone should do what they don’t like when young

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