Write a short note on ON Load tap changer.

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written 3.8 years ago by

Krishna_Agrawal • 2.7k

On-load tap changers (or circuit tap changers), permit tap changing and hence voltage regulation with the transformer on-load. Tap changing is usually done on the HV(High voltage) winding for two reasons:

Because the currents are lower, the tap changer contacts, leads, etc., can be smaller.
As the HV winding is …

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