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how to calculate induction motor rating (HP) if name plate
is missing from motor at site condition ?
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Answer Posted / seshasai bagadi
APPLY 440 VOLTS AT NO LOAD TO THAT MOTOR AND FIND THAT NO
LOAD CURRENT BY CLAMP METER.,
AS INDUCTION MOTOR TAKES 30 % OF FULL LOAD CURRENT AT
NOLOAD .,HENCE RATING CAN FIND BY USING..
P=(1.732)(V)(I)
WHERE V-RATED VOLTAGE(440V)
I-FULL LOAD CURRENT (CALCULATED)
P-RATING OF MOTOR IN KW
ASSUME UNITY POWER FACTOR
| Is This Answer Correct ? | 20 Yes | 12 No |
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