Product Core Brief
- Model: RET615E_G HBTBBABANBA1BNN1XG
- Brand: ABB
- Series: Relion 615
- Core Function: Protects two-winding power transformers.
- Type: Transformer Protection IED
- Key Specs: Stabilized differential protection, IEC 61850, withdrawable design
Condition: New Original (New Surplus) — not refurbished. Verify exact ordering code match for your application.
Product Introduction
Transformer relay swaps in substations leave little margin for mistakes. The ABB RET615E_G HBTBBABANBA1BNN1XG functions as a dedicated protection, control, measurement, and supervision IED for two-winding power transformers, unit transformers, and generator-transformer blocks.
In field deployments of 615 series units, this configuration supplies stable differential protection with strong harmonic restraint. It handles thermal overload and backup protection well. Honestly, the withdrawable case simplifies field work. Bottom line — it works once CT ratios and vector groups line up with your transformer data.
