Performance and testing of teleprotection equipment of power systems; part 1: narrow-band command systems

This specification outlines the performance requirements and testing procedures for teleprotection equipment used in electrical power systems. It specifically focuses on narrowband signaling systems, defining the technical parameters necessary to ensure reliable communication for protective relaying applications. The document establishes criteria for the design, operation, and validation of devices that transmit tripping signals over power lines, addressing issues such as signal transmission, reception, and system response times. Detailed test methods are provided to verify that equipment meets the stipulated functional and operational standards under various conditions. By setting uniform requirements, the standard facilitates the interoperability of protective devices from different manufacturers within power grids. The content covers aspects related to signal encoding, error handling, and synchronization mechanisms essential for safe and efficient power system protection. Adherence to these guidelines helps maintain the stability and security of electrical networks by ensuring that protective measures activate correctly during faults.