Tests on Electric Motor
Tests on Electric Motor
(OP)
Hi all!
Customer wants to test his motors.
He want Polarization Index, Hi-Pot and Surge Test.
I'm familiar with the 2 first test but what is a surge test?
He wants it to be done at 2,2 kV. What are the expected results ?
Thanks
Customer wants to test his motors.
He want Polarization Index, Hi-Pot and Surge Test.
I'm familiar with the 2 first test but what is a surge test?
He wants it to be done at 2,2 kV. What are the expected results ?
Thanks





RE: Tests on Electric Motor
Baker is (one of the existing) manufacturers.
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: Tests on Electric Motor
This might help: ht
Essentially, all three legs of a 3 phase motor should have identical induction character. A surge test "rings" (pulses) each circuit path, and compares the decaying waveforms, superimposed. They should have relatively high congruence. If not, there is likely a turn-to-turn short that will cause failure later.
BK
RE: Tests on Electric Motor
Like the hi-pot, the surge test is potentially destructive, so you need a qualified person to perform the test and full agreement on the test voltages before you test it.
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RE: Tests on Electric Motor
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Eng-tips forums: The best place on the web for engineering discussions.
RE: Tests on Electric Motor
This is good if the machine is critical but if it is a non-critical machine that won't cause a process to stop if it fails (ie of you have redundancy) the I believe the test is not necessary.