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4.2. Voltage Current Measurement
The voltage and current measurement on the primary and secondary side may be different for the
reason of the instrumentation and the high frequency wave. Refer to following diagram for
measurement:
V1
V1
W1 A1
L1 (L)
T1 (U)
L2
T2 (V)
L3 (N)
T3 (W)
SPEED DRIVE
S
U
P
P
L
Y
Moving iron type Voltmeter ( )
W2 A2
W3
A3
V2
M
3ph
W4 A4
W5 A5
W6
A6
V2 Rectifier type Voltmeter ( )
W1 Electrodynamometer type power meterto W6
A1 Moving iron type Ammeter ( )to A6
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