VFD readings, please check

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chris kennedy

Senior Member
Location
Miami Fla.
Occupation
60 yr old tool twisting electrician
I'm preparing an observation report for a VFD I installed about a year ago. Can you tell me if you see anything odd here? Looks OK to me but this will be on state records so I need more brain power.:)

Data plate
Input: 480V 50/60hz 40.6A
Output: 0-480V 0-60hz 34A

My readings are as follows with VFD operating at 57hz 480V out.

Input:

A?=43A
B?=38A
C?=36A

A-G=288V A-B=496V
B-G=281V A-C=488V
C-G=279V B-C=485V

Output amp right at 27-29A

Thanks.
 
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