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what is the difference between main meter CT and check
meter CT?and what is the difference between main meter PT
and check meter PT?
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Answer Posted / k.c.bhanu
In an industry the main meter CT's ( highly insulated as
per High voltage standard)primary windings are connected
directly to HT voltage(11KV/33KV)& secondary winding to the
Trivectometer. the check mteres & its CTs are commonly
installed with LT/ low voltage system of Consumer.
The Main PT (HT side) are designed 11KV/110volts or
33KV/110volts the primary windings are connected to the
High voltage & the secodary windigs out put (110 volts)are
connected to the Trivectometer.
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