晶闸管阴极和控制极间(G\K间)电阻值?我有变频器一台坏了,测量其晶闸管阴极和控制极间(G\K间)电阻值为9欧姆,不知其好坏,在此请各位高手指点!谢谢!GK
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/27 17:08:17
![晶闸管阴极和控制极间(G\K间)电阻值?我有变频器一台坏了,测量其晶闸管阴极和控制极间(G\K间)电阻值为9欧姆,不知其好坏,在此请各位高手指点!谢谢!GK](/uploads/image/z/7922468-20-8.jpg?t=%E6%99%B6%E9%97%B8%E7%AE%A1%E9%98%B4%E6%9E%81%E5%92%8C%E6%8E%A7%E5%88%B6%E6%9E%81%E9%97%B4%EF%BC%88G%5CK%E9%97%B4%EF%BC%89%E7%94%B5%E9%98%BB%E5%80%BC%3F%E6%88%91%E6%9C%89%E5%8F%98%E9%A2%91%E5%99%A8%E4%B8%80%E5%8F%B0%E5%9D%8F%E4%BA%86%2C%E6%B5%8B%E9%87%8F%E5%85%B6%E6%99%B6%E9%97%B8%E7%AE%A1%E9%98%B4%E6%9E%81%E5%92%8C%E6%8E%A7%E5%88%B6%E6%9E%81%E9%97%B4%EF%BC%88G%5CK%E9%97%B4%EF%BC%89%E7%94%B5%E9%98%BB%E5%80%BC%E4%B8%BA9%E6%AC%A7%E5%A7%86%2C%E4%B8%8D%E7%9F%A5%E5%85%B6%E5%A5%BD%E5%9D%8F%2C%E5%9C%A8%E6%AD%A4%E8%AF%B7%E5%90%84%E4%BD%8D%E9%AB%98%E6%89%8B%E6%8C%87%E7%82%B9%21%E8%B0%A2%E8%B0%A2%21GK)
晶闸管阴极和控制极间(G\K间)电阻值?我有变频器一台坏了,测量其晶闸管阴极和控制极间(G\K间)电阻值为9欧姆,不知其好坏,在此请各位高手指点!谢谢!GK
晶闸管阴极和控制极间(G\K间)电阻值?
我有变频器一台坏了,测量其晶闸管阴极和控制极间(G\K间)电阻值为9欧姆,不知其好坏,在此请各位高手指点!谢谢!
GK
晶闸管阴极和控制极间(G\K间)电阻值?我有变频器一台坏了,测量其晶闸管阴极和控制极间(G\K间)电阻值为9欧姆,不知其好坏,在此请各位高手指点!谢谢!GK
万用表选电阻R*1Ω挡,用红、黑两表笔分别测任意两引脚间正反向电阻直至找出读数为数十欧姆的一对引脚,此时黑表笔的引脚为控制极G,红表笔的引脚为阴极K,另一空脚为阳极A.此时将黑表笔接已判断了的阳极A,红表笔仍接阴极K.此时万用表指针应不动.用短线瞬间短接阳极A和控制极G,此时万用表电阻挡指针应向右偏转,阻值读数为10欧姆左右.如阳极A接黑表笔,阴极K接红表笔时,万用表指针发生偏转,说明该晶闸管已击穿损坏