Circuit Breaker (-Q1); Transformer (-T2) For Generating The Auxiliary Voltage 230 V Ac - Siemens SINAMICS S120 Device Manual

5.7.2

Circuit breaker (-Q1)

The infeed of the Auxiliary Power Supply Module occurs for the customer at the circuit
breaker (-Q1). The plant-side power demand indicated in the table "Technical specifications"
varies according to the version of the Cabinet Module used.
5.7.3

Transformer (-T2) for generating the auxiliary voltage 230 V AC

A transformer is incorporated to generate the 230 V 2 ph. AC voltage. This voltage is made
available in order to supply the auxiliary power system and the SITOP power supply.
When delivered, the taps are always set to the highest level. The line-side terminals of the
transformer may need to be reconnected according to the existing line voltage.
The line voltage assignments for making the appropriate setting on the transformer for the
internal power supply are indicated in the following table.
Note
Reconnecting the terminals according to the actual line voltage
The terminals must be reconnected according to the actual line voltage so that the 230 V 2
ph. AC voltage required in the system is provided correctly.
Table 5- 41
Cabinet Modules NEMA
Manual, 04/2014, A5E03586450A
Assignment of the available line voltage for generating the 230 V 2 ph. AC voltage
Tap
380 V
400 V
415 V
440 V
460 V
480 V
500 V
525 V
550 V
575 V
600 V
660 V
690 V
5.7 Auxiliary Power Supply Modules
Taps of matching transformer (T2) L
3 – 4
2 – 4
1 – 4
3 – 5
2 – 5
1 – 5
3 – 6
2 – 6
1 – 6
3 – 7
2 – 7
3 – 8
1 – 8
Cabinet Modules
– L
A B
243