The function of conservator in a transformer is

The function of breather in a transformer is

Two transformers are connected in parallel. These transformers do not have equal percentage impedance. This is likely to result in

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

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