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Premagnetisation Transformers to reduce the Inrush current of Main Transformers

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NickParker

Electrical
Sep 1, 2017
418
I see that in Ships, FPSO's - to reduce the Inrush current of the Main transformer, Premagnetisation transformer is used,

How is it advantageous when compared to other methods used to reduced the Inrush? for example say,
1) Controlled switching methods
2) Insertion of resistor and/or reactor
3) Current limiting reactors etc.
 
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