Fluke 43B
Applications Manual
24
Measuring the Load on a Transformer
Measure the total kVA on all three phases to check the load on a transformer.
1
Open the main menu.
2
3
Make connections as shown below:
Look at the kVA reading. It shows the apparent power on phase 1. Write
down the value (kVA
1
).
The symbol of a Capacitor or an Inductor is shown to indicate capacitive or
inductive loads.
4
Repeat the measurement on phase 2 and phase 3 (keep the black test
lead connected to the neutral). Write down the values for kVA
2
and
kVA
3
and calculate kVA
TOTAL
_____ kVA
1
+ _____ kVA
2
+ _____ kVA
3
= _____ kVA
TOTAL
Compare this result with the transformer kVA rating. If the result is close to, or
over the nameplate reading of the transformer, reduce the load on the
POWER
Summary of Contents for 43B
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