Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Replies 1 reply
  • Subscribers 17 subscribers
  • Views 78 views
  • Users 0 members are here
Options
You may also be interested in

Testing a 3 Phase Motor

Lee Colin Ingram

Good afternoon all.

We have recently purchased a test meter (Megger MTR105) that has the PI (Polarization Index) and DAR (Di-electric absorption rate) testing options.

The PI test takes a maximum of 10 minutes to perform its test/ winding. 

Has anyone carried out this test before and is it possible to carry out the test with the motor links in place or do these have to be removed as instructed in the manual ? I have seen conflicting suggestions that say you can have the links in place.

Regards

Lee

Parents
  • 0

    If you have the links in the motor terminal box connected, you will only be able to measure the collective insulation resistance of all three windings to earth.

    if you want to measure the insulation resistance to earth of each winding separately, or the insulation resistance between windings, you will need to disconnect the links in the motor terminal box.

    - Ross

Reply
  • 0

    If you have the links in the motor terminal box connected, you will only be able to measure the collective insulation resistance of all three windings to earth.

    if you want to measure the insulation resistance to earth of each winding separately, or the insulation resistance between windings, you will need to disconnect the links in the motor terminal box.

    - Ross

Children
No Data

Community Rules & Guidelines