Product Core Brief
- Model: RET615E HBTBBABANAA1ANN1XD
- Brand: ABB
- Series: Relion 615 Series
- Core Function: Delivers dedicated transformer differential protection, localized voltage management, and substation automation interface functionality for two-winding power transformers.
- Type: Transformer Protection and Control Relay
- Key Specs: Pre-configured Standard Configuration B, operates on 48–250 V DC / 100–240 V AC, equipped with standard analog CT/VT inputs and multi-protocol communication ports.
- Condition: New Original (New Surplus) — not refurbished.
Product Introduction
In search of an exact-match replacement for a high-performance Relion transformer terminal? The ABB RET615E HBTBBABANAA1ANN1XD functions as a specialized numerical relay configured explicitly for utility and industrial two-winding power transformers requiring integrated automatic voltage regulation. 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 a pre-engineered functional block footprint alongside highly stable Ethernet processing capabilities. That engineering choice slashes external marshalling requirements and guarantees network survival across high-voltage substation topologies.
Pricing Note: The listed price serves as a reference point only. Actual project pricing fluctuates based on current component market conditions and procurement volumes. Please contact our sales engineering desk to request a binding commercial quote.
Installation & Configuration Guide
Phase 1 — Pre-Installation (est. 10 min)
De-energize all primary medium-voltage circuit breakers feeding the transformer bay enclosure. Lock out and tag out the primary DC auxiliary control breaker. Before swinging open the low-voltage instrumentation door, verify that the terminal block rails are completely de-energized. Wait 5 minutes for the internal power supply module capacitors to drop their electrical charges.
Grab your field tools: an insulated terminal screwdriver, a static-dissipative wrist strap, and a Fluke 115 digital multimeter. Export your active parameters or standard .pcmp project file using a laptop running PCM600 software. Photograph the existing rear wiring layout, fiber transceiver paths, and case earthing strap positions.







