ABB IED Connectivity Package RET620 ANSI 2.0

The RET620 ANSI is a dedicated transformer relay perfectly aligned for the protection, control, measurement and supervision of power transformers. RET620 offers two standard ANSI configurations applicable to the most commonly-used power transformer combinations of delta and wye (grounded or ungrounded) windings. Both RET620 configurations feature local and remote control of the transformer high-side and low-side circuit breakers.