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where do we connect tap of tap changer, to H.V. side or
L.V.side? and why?
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Answer Posted / mprajaneb
There are mainly two reasons for this. Normally tap
changers are used to improve the LV side voltages. Such
cases the taps are provided on the HV side.
LV voltage= (HV voltage*Nlv/Nhv). So by reducing the number
of turns of the hv side we can increase the lv side voltage.
Also current in hv side is less compared to lv side and
thus the arcing is less for hv side tap changers.
| Is This Answer Correct ? | 39 Yes | 6 No |
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