Transformer Protection Relay by ABB HESG448614R1

Description

The ABBHESG448614R1is a transformer protection and control relay designed for medium- and high-voltage power systems. It provides precise detection ofphase faults, earth faults, thermal overloads, and abnormal transformer operating conditions. With configurable logic, modular I/O, and robust trip circuits, it helps ensurefast fault isolationand continuous grid stability. Its compact module housing enables easy installation inpanel-based protection cubicles, especially in retrofit upgrades of older substations. In addition, the relay supports remote signaling and automation interfaces for seamless integration intoSCADA and digital substation architectures. Its proven hardware reliability makes it well-suited for harsh industrial and utility environments.