Over current relays Clause Samples
The 'Over current relays' clause defines the requirements and operational parameters for protective devices that detect and respond to excessive electrical current in a circuit. These relays are typically set to activate when current exceeds a predetermined threshold, thereby isolating the affected section to prevent equipment damage or fire hazards. By specifying the use and settings of over current relays, this clause ensures the electrical system is protected from faults and overloads, thereby enhancing safety and minimizing the risk of costly outages or equipment failure.
Over current relays. Over current relays shall be induction type with inverse definite minimum time lag characteristics. Relays shall be provided with adjustable current and time settings. Setting for current shall be 50 to 200 % insteps of 25%. The IDMT relay shall have time lag (delay) of 0 to 3 seconds. The time setting multiplier shall be adjustable from 0.1
