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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双位置继电器工作环境

2013/12/20 12:31:38点击:
电磁式双位置继电器

双位置继电器概述

电磁式双位置继电器具有电压复归及红、绿色信号牌指示,由两个电磁铁及公用一块衔铁而组成闭合磁路,衔铁一端由弹片限制其位置。当合闸线圈通电时,衔铁克服弹片的反作用力而动作,此时信号牌为红色。当合闸线圈断电时,由于弹片作用,使衔铁仍处于合闸位置。只有跳闸线圈通电时,衔铁克服了弹片的反作用力而被吸向跳闸位置,此时信号牌为绿色。当跳闸线圈断电时,由于弹片的限制,衔铁仍然处于跳闸位置。因此实现了闭锁的目的。

双位置继电器工作环境

1.大气压力:80~110kPa;
2.空气相对湿度不大于90%(25℃);
3.周围介质温度:-25~+40℃;
4.安装位置偏离其安装垂直面的任一方向不大于5°;
5.使用地点不允许有较强的振动与冲击;
6.使用地点不得有爆炸危险的介质,周围介质中不应含有腐蚀金属和破坏绝缘的气体及导电介质,不允许充满水蒸气及有较严重的霉菌;
7.使用地点应具有防御雨、雪、风、沙的设施;
8.使用地点不允许有较强的外磁感应强度。