Answer / bimal sahoo

PS stands for SPECIAL PROTECTION class

Answer / bimal sahoo ( nit surat)

there are many secondary cores in a CT (4 or 5)
some for measuring some are used for protections.
in case of special protection the accuracy class defined is
known as SPECIAL PROTECTION CLASS or PS.
the product of VA burden and ALF(accuaracy limit factor) for
such a CT is around 150.

Answer / darshan thakur

PS class ct is used for Differential protection for static
rely. At the place of 5P20.

Answer / sandip gumtya

PS stand for Plug Setting.Its for use in relays.

KW-root3*Voltage*Current*Power Factor

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