Is voltage & potential transformer are the same? Are they
used for same application ?
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Answer Posted / sewagudde
VT and PT are the same thing. they step down high voltages
(132kV,33kv, 11kV etc) to a nominal value usually 110v
which is used to energize substation instruments such as
protective relays.importance of this is not to have bulky
relays which can withstand high voltages.
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Dear Mr B C pal...Can you plz. put some light on principle of operation of Z-Ct in conjunction to its use with 1Cx1000Sqmm HT Cables & Directional Ground Fault / Over Voltage Relays...Regd..Parag v K 9899115632
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