Product Core Brief
- Model: RET630
- Brand: ABB
- Series: Relion 630 Series
- Core Function: Provides comprehensive transformer differential protection, automatic voltage regulation (AVR), and extensive bay control for two-winding or three-winding power transformers.
- Type: Transformer Protection and Control Terminal
- Key Specs: Multi-application capability, full 1/2 or 1/1 19-inch rack format, modular and expandable I/O matrix, native IEC 61850 Edition 2 with redundant Ethernet ports.
- Condition: New Original (New Surplus) — not refurbished.
Product Introduction
Looking for an enterprise-tier numerical solution for multi-winding power transformer management? The ABB RET630 functions as a flagship protection and control terminal within the Relion 630 family, safeguarding large-scale utility, generation, and heavy industrial transformers against internal winding short-circuits, phase shifts, and progressive thermal degradation. This modular terminal fits seamlessly into your standard 19-inch control racks, interfacing directly with complex CT/VT networks and substation SCADA systems.
Deploying this specific controller stabilizes grid architectures during critical through-fault events by deploying an ultra-precise multi-slope restrained differential algorithm that calculates phase balances in under 20 ms. To be frank, the native integration of an extensive bay control schematic lets you manage associated circuit breakers and disconnectors directly from the large graphical HMI. That unified design approach removes the need for separate bay control units, cutting your panel engineering costs by up to 30%.







