Transformers - Siemens Simodrive 611 Configuration Manual

7 Line Supply Connection
7.2 Voltage matching
7.2.4

Transformers

Vector group
7-210
For the assignment of transformers (auto/isolating transformers) with supply
voltages of 3–ph. 220 V AC to 3–ph. 575 V AC to the NE modules, refer to Sec-
tions 7.3.2 to 7.3.4.
Line supply
connection/
transformer for
the plant
S line
K
Matching trans-
former for the
machine
Z
Line filter
Commutating
reactor
U1 V1
NE module
Fig. 7-6 Connection schematic, matching transformer
Suggestion: Dyn0 or Yyn0; this means either a delta or star circuit on the pri-
mary side and star circuit on the secondary side where the neutral point is
brought–out. For the connection, refer to Section 7.2.2.
Note
Switching elements (main switch, contactors) for connecting and disconnecting
the line filter must feature a max. 35 ms delay time between closing and
opening individual main contacts.
SIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition
S plant = S line
K K
Additional loads/
machines
For isolating transformer:
Ground the star point!
S transformer
K
Line filter
Commutating
reactor
W1
PE
© Siemens AG 2012 All Rights Reserved
02.07 11.05
05.01
Z
U1 V1 W1
PE
NE module