High voltage transformer 275kv

3,324 views · Published 8 January 2014 · 0:44 · Indexed 6 November 2026

Channel: Mark's Garage · 2014 · Science & Technology

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High voltage transformer humming away in service 240mva. Fitted with a onload tap changer. Built in the 60's. It has an incoming voltage of 275,000 volts and can adjust the output voltage using the tapchanger, this enables to maintain around 132,000 volts on the outgoing side. I was performing routine oil sampling to determine the transformers health.

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