3.11.3.4
Operating line connection components via an autotransformer
An autotransformer can be used to adapt the voltage in the range up to 3-ph. 480 VAC
+10%.
DANGER
Danger to life due to electric shock in the event that an isolating transformer is not used
At high voltages an isolating transformer must be used in order to implement protective
separation.
• Install an isolating transformer for voltages > 3 AC 480 V +10 %.
Applications:
● The motor insulation must be protected from excessive voltages.
● The Active Line Module must supply a regulated DC link voltage. This is possible with a
rated voltage of 380 V to 415 V.
In conjunction with motors that may be operated with a DC link voltage of up to 660 V,
and a line voltage > 415 V, a controlled DC link voltage is required.
Booksize Power Units
Manual, (GH2), 04/2014, 6SL3097-4AC00-0BP6
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Line connection and line-side power components
3.11 Line connection variants
147