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00:00Which of the following does not change in a transformer?

00:06C. Frequency. A transformer has negative voltage regulation when its load power factor is

00:15C. Leading. Which type of winding is used in a three-phase shell type transformer?

00:22B. Sandwich type. The transformer laminations are insulated from each other by

00:34B. Thin coat of varnish. The transformer ratings are usually expressed in terms of

00:44C. Kilovolt amperes. Silicon steel used in laminations mainly reduces

00:53A. Hysteresis loss. Power transformers are generally designed to have maximum efficiency around

01:02C. Near full load.

Electrical Transformer Quiz.. Electrical Questions and Answers

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