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P1, K
S1, k
S2, l
P2, L
Side A
Figure 6.6. Connection between CT1, CT2 , the summation CT and PQF
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C
C
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a
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4
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:
t
t
Two independent transformers (the tie is normally open) feeds two different
set of loads. One active filter is fitted on each LV busbar.
This system may however also work in degraded mode: the tie is closed and
only one transformer feeds the whole LV system.
By connecting the CT' s as described hereafter, it is still possible to filter
properly the harmonics and to correct the power factor.
PQF
Figure 6.7. Two independent transformers: single -line diagram
S1, k
P1, K
S2, l
P2, L
Side B
for one phase.
w
w
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T1
Asea Brown Boveri Jumet S.A.
PQFA Instructions Manual
P1
S1
P2
P1
S2
P2
d
d
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i
n
n
g
g
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t
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r
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m
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e
r
r
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s
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k
l
PQF
T2
PQF
40
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Troubleshooting
