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In Railway,why we are used HT Line 25KV ?.why we are not
used 11KV,33KV and others for This?
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Answer Posted / nills
Another point: If we use 11 KV for railway traction, the
conductor size will increase to meet the current
requirement and also the the contact area of the current
collector (Panto graph). If we increase it of 25 KV, the
cost of insulators, Locomotives will increase to meet the
standard of protection etc. So the 25 KV is now considered
to be most economic. otherwise the Tram cars run at 6.6 KV
in kolkata city.
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