Product Core Brief
- Model: RET650 (Specific Ordering/Material Code: 1MRK008516-AG)
- Brand: ABB
- Series: Relion 650 Series
- Core Function: Implements specialized, high-speed transformer differential protection, automatic voltage regulation (AVR), and multi-winding localized management for power station transformers.
- Type: Intelligent Electronic Device (IED) / Transformer Protection Relay
- Key Specs: Pre-configured template architecture, supports high-density analog CT/VT sampling channels, universal AC/DC wide-range auxiliary power card, fully compliant with IEC 61850 Edition 2.
- Condition: New Original (New Surplus) — not refurbished.
Product Introduction
In search of an exact-match factory ordering code for your Relion upgrade? The ABB RET650 with material part number 1MRK008516-AG functions as a highly specific, pre-configured transformer protection terminal within the Relion 650 family. This Intelligent Electronic Device (IED) safeguards two-winding or multi-winding substation transformers against phase-to-phase short circuits, winding inter-turn insulation faults, and asymmetrical load stress. The unit mounts seamlessly into standard 4U height panels, providing a compact 1/2-rack 19-inch layout footprint.
Deploying this specific hardware platform minimizes engineering risks during complex site switchovers because its channel assignments, internal DSP logic maps, and default binary options are structurally fixed to match designated ABB transformer schemes. Frankly, bypassing the need to program complex math curves from a blank software canvas slashes field integration mistakes and speeds up cold commissioning times by roughly 40%.







