Guru
Joined: 11/02/2018
Location: AustraliaPosts: 3377
| Posted: 04:27am 30 May 2026 |
Perhaps your energy meter is unable to correct for power factor during a surge.
20kVA looks about right for a compressor motor starting, but it's P.F. during starting is probably around 0.3 so that would be 20 x .3 = 6kW. Still quite respectable.