Meter Spin Test

How to determine instantaneous power from both the utility's watt hour meter and var-hour meter
(usually indicated by a large "R" on meter face)


Legend:


Kh
=
Meter constant printed on face or nameplate of meter
Mult
=
Multiplier (or product of the metering transformers ratios)
Rev
=
Number of revolutions on a disc
Sec
=
Time in seconds for the total number of revolutions (rev's) clocked


To determine KW (WattHour Meter)



 

To determine KVAR (Var-Hour Meter)