HIGH VOLTAGE TEST OF INDUCTION MOTOR
- More then rated voltage is called high voltage test.
- High voltage rating is variable is depend upon application insulation class.
- HV test is use to determine insulation breakdown voltage
HV TESTS FOR SINGLE PHASE MOTOR
FORMULA
H.V= 2*VOLTAGE+1000
EX. H.V=2*220V+1000
=1440 V -------approximately = 1500V= 1.5 kV.
HV TESTS FOR THREE PHASE MOTOR
FORMULA
H.V= 2*VOLTAGE+1000
EX. H.V=2*415 V+1000
=1830 V -------approximately = 2000V= 2 kV.
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Milan Tomic
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