METERING OUT FIT

The present invention relates to a current transformer for a high voltage line or a metering current transformer which is used for obtaining power of a system managing and monitoring high voltage, and more specifically, to a metering current transformer on which a gear unit having teeth on the upper part or the lower part of a bobbin having a plate-shaped steel sheet core wound around, is formed, to fasten or wind the steel sheet core around the bobbin by combining an extra gear on the gear unit by teeth and rotating while a part of a case is separated when the steel sheet core is replaced or the winding becomes loose. The metering current transformer installed on a distributing line in a distributing board of a consumer using high voltage electricity in the present invention comprises a bobbin allowing a plate-shaped steel sheet core to be wound around; a winding means winding the steel sheet core; and a housing surrounding the bobbin and made of nonmagnetic body.