PROVA 21 - Operating Instructions: Balanced 3-Phase Sequence; Balanced 3-Phase Sequence Measurement

21
III.5 Measurement of the Balanced 3 Phase Sequence (21, 23)
L1
L3
L1
L2
L3
T
u
r
e
R
M
S
A
U
T
O
-
P
O
W
E
R
-
O
F
F
3
+
L1
L2
L3
3
L3
L2
L1
3
a. Hold the
▼
button, and then turn the power on. Set the rotary switch at the
W-mA or W-A position.
b. Connect the black test lead to the voltage L3, and connect the red test lead to