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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真空断路器的二次技术从传统转向现代化

2013/12/10 10:32:21      点击:
真空断路器的二次技术从传统技术转向现代技术,现代二次技术采用了机电一体化技术,电一体化技术是建立在微电子技术、信息传感技术、计算机控制技术、伺服驱动技术及精密机械技术等高度发展之上的综合技术。

机电一体化用在开关设备上,把计算机加进机械系统,使开关系统有了“大脑”,再加进“传感器”采集信息,用光纤传导信息使开关系统有了“知觉”,大脑根据知觉作出判定与决定,使系统有了“智能”。因此现代二次技术使之开关设备智能化。

开关设备的智能化可通过连续检测,确切了解运行状况作趋势分析、识别存在的故障,从而采取必要的措施防患于未然,改以往的“定期检验”为“状态检验”,从而进步设备的利用率和节省检验用度。

真空断路器之所以为众多厂家青睐,除产量大、覆盖面广之外,首要原因是由于真空技术、真空工艺、灭弧室制造技术的不断进步,使真空断路用具有优异的电性能和机械性能,能满足不同用户的不同要求。另一个重要原因,是它对环境友好,在人们普遍注重环保的今天,这点尤为重要。

在真空断路器中,不产生分解物,由于在这里开断时只产生金属蒸汽。真空灭弧室尽对密封钎焊,不会与环境相互影响。污秽、灰尘及潮气均不能进进灭弧,这就避免了任何的氧化。灭弧室的所有材料均以洁净的状态保持在整个寿命期间。