7
05.01
7.2 Voltage matching
7-199
© Siemens AG 2008 All Rights Reserved
SIMODRIVE 611 Configuration Manual (PJU) -- 05/2008 Edition
Symmetrical 3--conductor or 4--conductor three--phase line supply with a di-
rectly grounded point. The loads are grounded, e.g. with grounds that are not
electrically connected to the directly grounded point of the line supply.
Commutating
reactor
U1 V1 W1
Connection schematic, TT line supply
with grounded neutral point and
isolating transformer
Line supply/transformer for the factory
Isolating
transformer
PE
N
L3
L2
L1
PE
NE module
Commutating
reactor
U1 V1 W1
TT line supply grounded phase conductor
and isolating transformer connection schematic
Line supply/transformer for the factory
Isolating
transformer
PE
N
L3
L2
L1
NE module
PE
≁
≁
Line filter Line filter
Fig. 7-2 TT line supplies connection schematic
TT line supply
7L
ne Su
l
Connec
on11.05
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