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Q1. Primary windings of 2 nos. of double winding Converter transformers are connected to 6.6 KV bus. These transformers are feeding to two nos. of 3 phase , 6 pulse, thyristor converters.
The thyristor converters are controlling 2 nos. of separately excited 600 kW DC motors coupled through shaft .
Now question is what should be the vector group of these transformers and what is the advantage?
Wednesday, October 21, 2009
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