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REF615J

The ABB REF615J is a high-performance, IEC 61850-enabled feeder protection and control relay belonging to ABB's Relion® 615 series, housed in the "J" variant case. This numerical relay is engineered for the comprehensive protection, automation, control, and monitoring of medium-voltage feeders (typically up to 24kV) in utility substations, industrial plants, and commercial power distribution systems. It represents a core component of ABB's Adaptive Protection philosophy, offering a robust suite of protection functions, advanced communication capabilities (notably IEC 61850), and flexible programmability to meet the demands of modern grid applications.

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Technical Specifications / Parameters Parameter Specification Manufacturer Model REF615J Product Family / Series ABB Relion® 615 Series (Feeder Protection) Device Type Numerical Feeder Protection and Control Relay Housing "J" Case (Standard depth design, offering a balanced profile for panel integration). Key Protection Functions • Overcurrent Protection (50/51, 50N/51N) with multiple independent, time-delayed or instantaneous stages • Directional Overcurrent Protection (67/67N) • Sensitive Directional Earth-Fault Protection • Thermal Overload Protection (49) for cables and motors • Phase Imbalance / Negative Sequence (46) • Breaker Failure Protection (50BF) • Under/Overvoltage (27/59) & Under/Overfrequency (81O/U) • Auto-reclosing (79) (for overhead lines) • Inrush Current Restraint (to prevent transformer magnetizing inrush misoperation) Control & Monitoring • Advanced Programmable Logic using CAP (Configuration and Planning) editor in PCM600 • Sequence of Events (SOE) Recorder with high-resolution time-stamping • Disturbance Recorder (Fault Recorder) for detailed fault analysis • Comprehensive Metering: V, I, P, Q, PF, Energy, Harmonics, etc. • Circuit Breaker Condition Monitoring (operating time, trip count, wear estimation) Communication Protocols • IEC 61850 (Edition 2) for station bus communication (MMS, GOOSE for high-speed peer-to-peer signaling) • IEC 60870-5-103 & IEC 60870-5-104 • Modbus RTU (serial) & Modbus TCP/IP (over Ethernet) • DNP3 (Serial & TCP) • IEC 61850 over MMS for SCADA integration Hardware I/O (Typical Configuration) • Binary Inputs: 9-12 (24-250V DC, configurable) • Binary Outputs (Relays): 8-10 (Form-A or Form-C contacts) • Analog Inputs: 4 current (1A/5A), 4 voltage (100-120V line-to-neutral) • Ethernet Ports: 2 or 4 (RJ45, copper or optional fiber) • Serial Ports: 1-2 (RS485/RS232) Human-Machine Interface (HMI) • High-contrast graphical LCD display • Intuitive menu navigation with front-panel keys • LED Indicators for status, alarms, and trip • Multilingual text support Power Supply Wide-range options: 24-48V DC, 60-250V DC, or 110-240V AC/DC. Standards & Certifications IEC 60255, IEC 61850, IEEE C37.90, UL 508, CE, DNV, and other industry-specific certifications. Mounting Panel mounting (flush or surface) or DIN Rail Mounting (with optional kit). Configuration Software ABB PCM600 (Protection and Control IED Manager) for parameter setting, logic configuration, and commissioning.