difference between EMVT, PT & CVT ?

Answer Posted / j. ramanath

CVT which is also called (CCVT) capacitor coupled voltage
transformer which is used to reduce the voltage from 400 KV
and higher to 110 volts for the purpose of deriving
metering, relaying and protection signals. Here the high
voltage is applied across two capacitors in series with an
inductor in parallel of these capacitors which form the
primary winding of CVT. The secondary winding terminals at
different tapping points are brought out to a small junction
box mounted on the base of the equipment from where it is
wired for different functions

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