The digital multifunctional relay MRI3-ITE(R) has been designed as a universal time over current protection relay with thermal replica for generators, transformers and cables. The relay gives a complete thermal characteristic of the electrical equipment to be protected taking into account its initial load. The MRI3-ITE(R) furthermore provides a universal time over current and earth fault protection with the following functions: Integrated determination of earth fault direction for application to power system networks with isolated or arc suppressing coil (Peterson coil) neutral earthing (ER-relay type), independent (Definite) time over current relay. inverse time over current relay with selectable characteristics, two-element (low
FEATURES & FUNCTIONALITY
The digital multifunctional relay MRI3-ITE(R) has been designed as a universal time over current protection relay with thermal replica for generators, transformers and cables. The relay gives a complete thermal characteristic of the electrical equipment to be protected taking into account its initial load. The MRI3-ITE(R) furthermore provides a universal time over current and earth fault protection with the following functions: Integrated determination of earth fault direction for application to power system networks with isolated or arc suppressing coil (Peterson coil) neutral earthing (ER-relay type), independent (Definite) time over current relay. inverse time over current relay with selectable characteristics, two-element (low