The is a sophisticated Distance Protection Intelligent Electronic Device (IED) developed by Toshiba . It belongs to the next-generation GR-200 series platform, specifically designed to safeguard high-voltage transmission lines and distribution feeders. By providing precise fault detection and control, this device plays a critical role in preventing large-scale power outages and ensuring the stability of modern electrical grids. Core Protection Capabilities
: It includes specialized logic for Switch-on-to-fault (SOTF) , power swing blocking, and broken conductor detection to prevent unnecessary trips or system damage. grz200
Easily set up communication standards like IEC 61850 for digital substation integration. power swing blocking
Uses both quadrilateral and mho-based characteristics to accurately calculate fault impedance across a wide range of frequencies. grz200