C18 Power Module Caterpillar


Winding - Test

Usage:

C18 X6X



图 1g01388839

1800 机架系列 PMPE 发电机接线图

(CR1-C6) 二级管

(CR7) 变阻器

(L1) 励磁机定子

(L2) 励磁机转子

(L3) 主转子

(L4) 主定子

(L5) 永久磁铁励磁发电机 (PMG) 定子

(PM) 永久磁铁

(RFA) 旋转磁场组件

(CT1) 选装的压降变压器

(T0、T1、T2、T3、T7、T8、T9) 发电机端子

表 1
数量     需要的工具    
1     低电阻计    

测量下列绕组的电阻值: (L1), (L2), (L3), (L4) 和 (L5). 测量电阻前必须把要测试的绕组与其它元件脱开。

注: 绕组的温度影响电阻值。 绕组温度升高时,绕组电阻增大。 绕组温度降低时,绕组电阻减小。 因此只有当绕组在室温时才能进行正确的测量。

下面的电阻测量值是近似值。 如果测得的值与所列的近似值不接近,绕组很可能损坏。 有关更准确的电阻值,请咨询技术市场信息 (TMI) 部门。 参见有关的发电机配置。

下列各绕组的电阻非常小: (L2), (L4) 和 (L5). 它们的电阻值接近于 0 欧姆。 应使用毫欧表来测量绕组的电阻。

励磁机转子 (L2) - 请参看表2。

主定子 (L4) - 小于 0.1 欧姆

副励磁机定子 (L5) - 小于 0.1 欧姆

使用万用表来测量磁场绕组 (L1) 和 (L3) 的电阻。

励磁机磁场(定子) (L1) - 请参看表2。

主磁场(转子) (L3) - 大约 0.35 欧姆至 1.2 欧姆

注: 在任何绕组与地面之间均不应导通。 在任一绕组与另一绕组之间也不应导通。

表 2
    L1 励磁机磁场     L2 励磁机转子     转子主磁场    
1800 机架     10.9 欧姆     0.05 欧姆     0.9 欧姆    
1600 机架     10 欧姆     0.06 欧姆     0.5 欧姆    
1400 机架     11 欧姆     0.06 欧姆     0.35 欧姆    

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