Transformers - Bosch Rexroth IndraDrive Project Planning Manual

Rexroth IndraDrive
4

Transformers

Grounded power supply lines
Ungrounded power supply lines
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Transformers are only needed if the systems voltage exceeds the rated
voltage of the drive controller.
For grounded power supply lines, the line voltage is matched to the rated
voltage of the units using autotransformers which are suited to one
specific output voltage range.
To match the voltage for ungrounded power supply lines, always connect
isolating transformers to prevent excess phase to ground voltages.
4-1
Transformers