The T60, a member of the UR family of protection relays, is a 3-phase, multiple winding, transformer relay intended for the primary protection and management of small, medium and large power transformers. The T60 combines percent and instantaneous differential with Overcurrent protection along with a whole suite of current, voltage and frequency protection elements, and multiple settings groups in one easily configured, economical package. An innovative improvement to the traditional harmonic inrush inhibit of the percent differential element increases security while maintaining fault response performance.
