Mike Krzyzewski is really a famous coach of Dream Team. She has coached north america men's basketball team for some time, that's clinched numerous medals for his country. Following Londonfl jerseys supplyn Olympic was over, Krzyzewski told The Associated Press that this game will be his final one as national coach, a job he's held for seven years. He had left open the possibility of swomen nfl jerseystaying with the team beyond the London Games, when practice on Saturday said these will be his last Olympics.When asked if he was sure, Krzyzewski didn't hesitate before again saying, "yecheap nfl jerseys wholesales," this will be his last game "If we could win it, then it might be three major championships in a row, i always do not know when that has been done because we haven't usually won http://govoriotkrito.bg/libs/nflcn08.htmthe globe championships," Krzyzewski said. "It becomes an enormous thing for the program." Whatever, he's an awesome coach. His achievement are going to be remembered by the country.cheap nfl jerseys
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人民电气说说断路器和熔断器的区别

2021/1/13 14:35:34      点击:
断路器可用来分配电能,不频繁地启动异步电动机,对电源线路及电动机等实行保护,当它们发生严重的过载或者短路及欠压等故障时能自动切断电路,其功能相当于熔断器开关与过欠热继电器等的组合。 熔断器也被称为保险丝,它是一种安装在电路中,保证电路安全运行的电器元件。熔断器其实就是一种短路保护器,广泛用于配电系统控制系统,主要进行短路保护或严重过载保护。 共同点:两者都是电路保护电器,用于实现对断路器的过载和短路保护。
区别1:
断路器的保护方式是跳闸,排除故障后通过合闸即可恢复供电,方便;
熔断器的保护方式是熔断,排除故障后需要更换熔体恢复供电,不便。
区别2:
断路器的跳闸速度是毫秒(ms)级,相对较慢,某些对截断速度要求高的场合不适用;
熔断器的熔断速度是微秒(μs)级,远远快于断路器,适用于有快速截断要求的场合。
其它还有很多区别,比较简单且重要的就是这两个了。