ABB REF615E_G Relion® 615 series feeder protection relay

Here's the comprehensive technical specification for ABB REF615E_G, the standard-configuration feeder protection relay in ABB's Relion® 615 series, optimized for cost-effective distribution networks:

ABB REF615E_G

Feeder Protection & Control Relay

*(Relion® 615 Series | "G" = Standard Hardware)*

Order Code: 1MRK 002 228-BEN

1. Core Identity

Application: Primary protection of 11–33 kV distribution feeders (overhead lines/cables).

Hardware Platform: REF615E

Suffix "G": Standard hardware configuration (balanced performance for typical use cases).

Key Strength: Simplified deployment with pre-configured logic templates.

2. Key Protection Functions

Function Technical Scope

Overcurrent (50/51) Phase & ground (3I₀), instantaneous/time-delayed

Directional OC (67/67N) Voltage-polarized (requires VT input)

Auto-reclosing (79) 1–4 shots (single/three-phase), with dead-time logic

Voltage Protection Under/overvoltage (27/59), residual overvoltage (59N)

Breaker Failure (50BF) Backup tripping with programmable delay

3. Hardware Configuration

Component Specification

Analog Inputs 4× current (5A/1A) + 3× voltage (110V/120V) ±0.5% accuracy

Digital I/O 16 DI / 10 DO (configurable) + 2× alarm relays

Communication 2× Ethernet (IEC 61850 Ed.2) + 1× RS485 (Modbus RTU/IEC 60870-5-103)

HMI 128×64 graphical LCD + 6 programmable LEDs + keypad

Clock Sync SNTP / IRIG-B

4. Technical Specifications

Parameter Value

OC Protection Range 0.05–40.00 A (phase) / 0.01–10.00 A (ground)

Operating Time <35 ms (instantaneous OC)

IEC 61850 Support GOOSE, MMS, Sampled Values (SV)

Fault Records 100 COMTRADE events (8 GB storage)

Standards IEC 60255, IEEE C37.90, IEC 61000-4-4 (EFT/Burst)

Operating Temp -40°C to +70°C