Consider the following properties during the configuration:
● Short-circuit voltage u
k
≥ 10% (in relation to 10 MVA)
● Transformer taps for voltage adjustments:
2 x 2.5%.
The winding transformer taps are normally located on the primary side of the transformer.
● The voltages and insulation for the secondary-side windings must be dimensioned as
shown in the following table:
Connection
Single connection
Circuit version
Basic connection, 12-pulse infeed Series connection of the Basic Line
Module
Infeed transformers
1 three-winding transformer
2 three-winding transformers
Recommended vector group
Dy5 Dd0
Dy5 Dd0
with primary shift + 7.5°
Dy5 Dd0
with primary shift - 7.5°
Drive output voltage
[kV]
Test voltage
[kV]
1)
Transformer secondary voltage
(no-load voltage)
[kV]
3.3
33.6
2 x 1.7
2)
2 x 0.85 (2x)
3)
1)
The specified voltage is the required impulse withstand / test voltage for the transformer
secondary windings with respect to ground. Because the transformers generally have
temperature evaluation systems in the windings, the specified test voltage is required for
strengthened insulation. If no control circuits have been installed in the windings, the test
voltage in accordance with the basic insulation is sufficient.
2)
Basic connection
3)
Option
3.5.9
Actual value acquisition
Actual current and voltage values are recorded by the AVT combination module
①
. The AVT
combination module converts analog signals into digital signals and forwards them to the PSA.
The signals are transferred to the PSA via fiber-optic cables.
Description
3.5 Description of the components
SINAMICS GM150 6SL3835-2LN44-2AA0
Operating Instructions Rev.201910281250 MUSTER
39
Summary of Contents for Sinamics GM150 6SL3835-2LN44-2AA0
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