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U
U
U
U
C
CA
BC
=
+
−
(
)
0
/ 3
(Equation 218)
If the
U
0
channel is not valid, it is assumed to be zero.
The phase-to-phase voltages are calculated from the phase-to-earth voltages when
VT connection is selected as "Wye" according to the equations.
U
U
U
AB
A
B
=
−
(Equation 219)
U
U
U
BC
B
C
=
−
(Equation 220)
U
U
U
CA
C
A
=
−
(Equation 221)
General function block features
1MRS757644 H
1168
620 series
Technical Manual