XPost: sci.electronics.design, sci.electronics.misc, sci.electronics.repair   
   From: pconners98@gUSmail.com   
      
   > 180 vdc, 1 hp, pm motor.   
   >   
   > with dmm what should be the first tests? motor is in a difficult location to   
   > examine visually so i'd like to start with electrical evaluation.   
   >   
   > it measures 1.2 ohms between the 2 armature leads.   
      
   Motor out of the equipment. Turning armature slowly, the resistance reading   
   between the armature leads varies from a low of 2.3 to high of 10; most are   
   around 6-7 ohms. Resistance of each lead to motor frame is minimum 150K up to   
   over 1 meg.   
      
   What's normal for such a motor?   
      
   Thanks.   
      
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