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What is the major difference between P.T. & C.V.T ? Why CVT
is used in HT Transmission line in place of P.T.?
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Answer Posted / roshan khadka
CVT means capacitive voltage transformer which consists of
stack of capacitor connected in series and is used where
PLCC is used so that no additional capacitor is required in
PLCC. Also during transient condition, voltage build up
process in capacitor is slow which limits fast steepness
fronted wave. The protective device operates within this
voltage build up process.
Whereas, PT means simply potential transformer and is used
where only measurement and protection is required.PT is
cheaper in comparision with CVT but in expense of cost, CVT
can be used.
| Is This Answer Correct ? | 19 Yes | 7 No |
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