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What is Metrosil Resistors for Relay Protection about?

This document provides guidelines for selecting the appropriate Metrosil resistor to protect high impedance relays connected to current transformers (CTs). It outlines a 5-step process for selecting the correct Metrosil type based on the CT rating, relay settings, and maximum fault conditions. Tables 1-4 specify recommended Metrosil types for different relay and fault scenarios. Mounting considerations are also discussed to avoid overheating the Metrosil resistors during operation.

Author

Suranjana Das

Language

EN