ABB PQFS Installation, Operation And Maintenance Instructions page 119

U
I1
Figure 81: Phase shift evaluation between two waveforms
8.6.2.3.2 Measurement of the CT in phase L2 and L3
The same operations as those described in the previous paragraph must be repeated
with the phase L2 (Figure
For a balanced load (which is usually the case in most of the three phase systems), the
phase shift should be approximately the same for all the three phases.
L1
L2
Supply side
L3
N
Figure 82: Connection of the scopemeter for checking CT in phase L2
T
1
82) and phase L3 (Figure
K L
K L
K
k l
k l
Positive direction
Manual Power Quality Filter PQFS ç Commissioning instructions 119
DT
(Figure 82 and Figure
83).
L
k l
N L1 L2 L3
X21.1
X21.2
X21.3
PQF
X21.4
X21.5
X21.6
Ch1 Ch2
83)
Load side