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
新闻动态 News
搜索 Search
你的位置:首页 > 新闻动态 > 行业新闻

中间继电器有什么作用,时间继电器由松川电器有限公司厂家直接供应

2013/11/29 9:55:20点击:

中间继电器有什么作用,时间继电器由松川电器有限公司厂家直接供应    

松川电器生产的中间继电器有以下几点作用:

     1、隔离。控制系统的输出信号与负载端电气隔离。

     2、转换。比如控制系统输出信号为DC24V,但负载使用AC220V供电,对于输入,可逆。

     3、放大。控制器输出的信号的带负载的能力往往有限,在mA或者数A的级别,如果有需要更大电流的负载,只能通过中间继电器来转换。

     4、便于维护。即使是满足负载电流要求的输出端,但因为集成在控制器内部,如果损坏,更换维修比较麻烦,但如果通过中间继电器,输出端的负载只是继电器的线圈,减轻了控制器输出级的负载,从而降低损坏的几率。而当中间继电器触点因为频繁的使用损坏时,很容易通过简单的插拔完成更换。