局部短路是什么??是不是短路的一种,也是短路?

2025-04-08 03:12:52
推荐回答(2个)
回答1:

我来详细地说说。
局部短路也是短路,它是用电器短路,与它不同的是电源短路。局部短路的电路图是这样的:让两个电阻串联接在电源上,组成电路,然后用一根导线与电阻R1并联,则电阻R1就被短路了。短路后的电路效果实际上就是只有一个电阻R2接在电路中。(楼主可根据我的介绍自己画一下电路图,就理解了)
电源短路由于可能会损坏电源,所以是严格禁止的。而局部短路的危害不大,例如我上面所说的电路,如果在电阻R1短路之前,R1和R2两个电阻都是工作在额定电压下的,即两电阻正常工作。则由于R1被短路,电源电压全部加在电阻R2两端,于是R2的实际电压超过了它的额定电压,有可能被烧坏(即电阻被烧成断路),则最后的结果是电阻R2损坏,电路成为断路,而电源没有任何损坏的可能。

回答2:

局部短路也成为电器短路,使用中短路电器将无法正常工作。

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