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The connection of the CT' s to the active filter must be as represented herafter:
L1
L2
Supply side
L3
K = P1, L = P2, k = S1, l = S2
Figure 6.2. CT' s connection to the active filter.
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4
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2
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2
.
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I
Instead of installing one active filter in central position, it also possible to
connect the active filter and its CT' s so that it compensates one particular load
only.
In the example hereafter, the active filter PQF is connected to compensate
Load 1 only. It does not see load 2.
Figure 6.3. Individual compensation – one feeding transformer
The connection of the 3 CT' s to the active filter is described in 6.4.1.
K
L
K
k
l
k
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PQF
Asea Brown Boveri Jumet S.A.
PQFA Instructions Manual
L
K
L
l
k
l
X5.6
X5.5
X5.4
X5.3
X5.2
X5.1
a
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LOAD 2
LOAD 1
Load side
L1
L2
L3
PQF
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37
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