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  1. What is the use of Breather in transformers?

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  2. The purpose of breather is to absorb the moisture during breathing

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  3. What method of speed control of a DC machine can a domestic consumer use without any hassle?

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    Replies
    1. The method is aramature voltage control with help of rheostat, this would be the cheapest in terms of economy but if the utilization factor is high then power converter are the best for the control

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  4. How is working of a sf6 Circut breaker compared to air or vacuum breaker in terms of economy,used for LV switching upto 110kv

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