IEEE PC57.13 DRAFT

Description / Abstract: This standard is intended for use as a basis for performance and interchangeability of equipment covered,and to assist in the proper selection of such equipment. Safety precautions are also addressed

This standard covers certain electrical, dimensional, and mechanical characteristics, and takes intoconsideration certain safety features of current and inductively coupled voltage transformers of typesgenerally used in the measurement of electricity and the control of equipment associated with the generation, transmission, and distribution of alternating current.

Purpose

The purpose of this standard is to provide the performance requirements for electrical system and testinterchangeability of current and inductively coupled voltage transformers. These transformers are forboth indoor and outdoor application.This standard covers the requirements for Class 1 instrument transformers. For instrument transformersof a nominal system voltage of 115 kV