The no-load current drawn by transformer is usually what per cent of the full-load current?
The chemical used in breather for transformer should have the quality of
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The function of conservator in a transformer is
Two transformers are connected in parallel. These transformers do not have equal percentage impedance. This is likely to result in
The value of flux involved m the e.m.f. equation of a transformer is
In a given transformer for given applied voltage, losses which remain constant irrespective of load changes are
The changes in volume of transformer cooling oil due to variation of atmospheric tem-perature during day and night is taken care of by which part of transformer
Star/star transformers work satisfactorily when
Delta/star transformer works satisfactorily when
35 videos|85 docs|42 tests
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35 videos|85 docs|42 tests
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