Product Core Brief
- Model: RET615E_E
- Brand: ABB
- Series: Relion 615 Series
- Core Function: Implements specialized transformer differential protection, voltage management, and localized monitoring for two-winding power transformers.
- Type: Transformer Protection and Control Relay
- Key Specs: Supports IEC 61850 Edition 2, features high-density configuration parameters, operates on a universal 48–250 V DC / 100–240 V AC power card.
- Condition: New Original (New Surplus) — not refurbished.
Product Introduction
In search of an optimized, high-density solution for medium-voltage transformer protection? The ABB RET615E_E functions as a dedicated numerical terminal within the Relion family, safeguarding utility and industrial transformers against internal winding short-circuits, phase faults, and thermal overloads. This device mounts directly to your switchgear cell face, wiring directly to standard CT and VT secondary circuits.
Deploying this specific controller stabilizes electrical operations during heavy through-fault conditions by using an advanced numerical restraint algorithm that halts false tripping within 10 ms. Honestly, the integrated engineering framework provides a pre-configured functional block layout tailored for automated tap-changer voltage regulation. That design choice minimizes external control logic components, slicing panel assembly costs by up to 25% during infrastructure upgrades.
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
— Pre-Installation (est. 10 min)
Isolate 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.







