ABB 1MRK002816-AC（RET670）

ABB 1MRK002816-AC (RET670) Relion® Transformer Protection & Control IED (Intelligent Electronic Device) ⚡

The ABB 1MRK002816-AC (RET670) is a premium Relion® series intelligent electronic device (IED) engineered for comprehensive protection, control, and monitoring of two/three-winding power transformers in utility and industrial substations. It integrates fast, selective protection functions (e.g., differential 87T, overcurrent 50/51, restricted earth fault 64, undervoltage 27, overload 49) with high-precision metering, event/fault recording, and flexible communication to maximize transformer availability and minimize downtime. Designed for harsh substation environments, it supports global standards (IEC 61850 MMS/GOOSE/SV, IEC 60870-5-103, Modbus RTU/TCP, DNP3) for seamless integration into SCADA and substation automation systems (SAS). A local 4-line graphical LCD HMI enables on-site configuration, monitoring, and troubleshooting, while its rugged enclosure and wide operating temperature range (-40 °C to +70 °C) ensure stable performance in extreme conditions. CE/UL/IEC compliant for global deployment.