Product Core Brief
- Model: RET615 (Part Number: HBTEBCADAAC2BBN11G)
- Brand: ABB
- Series: Relion 615 Series
- Core Function: Delivers dedicated 3-phase differential protection, control, and voltage regulation for two-winding power transformers.
- Type: Transformer Protection and Control Relay
- Key Specs: Standard Configuration B, 48–250 V DC / 100–240 V AC aux voltage, 14 Binary Inputs + 12 Binary Outputs, multi-protocol communication.
- Condition: New Original (New Surplus) — not refurbished.
Product Introduction
Looking for a drop-in replacement for a high-spec Relion transformer terminal? The ABB RET615 HBTEBCADAAC2BBN11G functions as a specialized numerical relay configured precisely for two-winding power transformers requiring integrated automatic voltage regulation (AVR). This device mounts directly into your medium-voltage switchgear panel face, interfacing with instrument transformers to run high-speed protection algorithms.
Deploying this specific controller limits mechanical tank strain during internal phase-to-phase faults by deploying a restrained differential block that operates in under 30 ms. To be frank, selecting this complete product build code provides an expanded digital I/O footprint alongside redundant Ethernet processing capabilities. That engineering choice slashes external marshalling requirements and guarantees network survival across high-voltage substation topologies.
