Description
ABB REF615 HBFFAEAGNBC6BNA11G
I. Basic Information
Model：REF615 HBFFAEAGNBC6BNA11G
Brand：ABB (Original), Relion® 615 series intelligent integrated feeder protection and control IED, core secondary protection and measurement equipment for medium and low-voltage distribution networks, industrial factory power and new energy distribution systems.
Product Positioning
The REF615 is a classic intelligent integrated feeder protection and control device of ABB Relion® 615 series. Designed for 10kV/35kV medium-voltage distribution feeders, ring network lines, factory power outgoing lines and bus section circuits, it is widely adapted to municipal distribution networks, industrial power and new energy grid-connected scenarios. Integrating relay protection, high-precision electrical measurement, local/remote switch control, fault recording, sequence event recording and multi-protocol communication networking, it adopts mature full-digital sampling and industrial operation architecture with stable performance and strong compatibility. It realizes full protection against feeder short circuit, grounding, overload, voltage/frequency abnormality, as well as full electrical parameter monitoring, load statistics and automatic operation control, serving as the mainstream universal comprehensive protection device for intelligent substation renovation, distribution network automation construction and industrial distribution system upgrading.
Hardware Architecture
Adopting compact modular industrial hardware architecture and ABB dedicated high-speed power processor, the device supports full-link high-speed AD digital sampling with no temperature drift or zero offset and long-term stable sampling accuracy. It integrates independent high-precision voltage/current sampling loops, programmable binary I/O matrix, dedicated hardware fault judgment unit and large-capacity fault recording & event storage unit. The internal physical partition layout of strong and weak current is equipped with multi-level lightning surge suppression, EMI electromagnetic shielding, static protection and filter isolation circuits, ensuring complete electrical isolation of analog, binary and communication loops to adapt to harsh electromagnetic environments in substations and distribution rooms. Equipped with high-definition LCD local HMI, function keys and multi-level status indicators, it supports on-site parameter viewing, setting tuning, fault query and loop commissioning. Built-in complete hardware self-diagnosis mechanism monitors power supply, sampling, communication and chip operation status in real time, realizing active alarm and fault tolerance for abnormalities to ensure 7×24-hour uninterrupted stable operation.
Mounting Specification
Adopts standard 4U cabinet embedded panel mounting, compatible with universal opening sizes of domestic power cabinets, suitable for dense layout of new and renovated substation secondary cabinets. It has passed strict industrial anti-vibration, anti-shock, wide-temperature aging, dustproof and moistureproof tests, tolerating long-term substation temperature fluctuation, equipment vibration and slight dust/humidity. The front panel adopts high-protection structure design with standardized rear partition wiring and separated strong/weak current layout. The reinforced anti-loosening structure with excellent durability fully meets the long-term continuous operation standards of power industry, adapting to unattended substations, industrial high-voltage distribution rooms and park distribution rooms.
Compatible Systems
Fully compatible with intelligent substation automation systems, 10kV/35kV distribution network automation systems, industrial factory power monitoring systems, distributed new energy grid-connected monitoring platforms and power SCADA scheduling systems. It seamlessly connects with upper monitoring background, engineer workstations, power RTU and PLC automatic control systems. Natively supports mainstream power protocols including IEC61850, IEC60870-5-103, Modbus TCP/RTU and DNP3, with SNTP network time synchronization and IRIG-B hardware high-precision time synchronization. It supports multi-device cluster networking, synchronous data upload, remote setting modification, remote switching and active fault information upload, adapting to various intelligent power operation and maintenance systems.
Product Characteristics
1. Mature and stable digital operation architecture with accurate fault judgment logic and fast response, eliminating protection misoperation, refusal and delay;
2. Integrated multi-function design integrating protection, measurement, control, recording, communication and event recording without additional auxiliary equipment;
3. High-precision full electrical parameter sampling and metering with small measurement error, meeting refined grid monitoring and energy consumption statistics standards;
4. Full-loop electrical isolation and multi-level EMC protection resist lightning and radiation interference, adapting to complex on-site electromagnetic conditions;
5. Multi-protocol compatibility and dual-mode time synchronization ensure stable networking and low transmission delay for unattended intelligent grid automatic operation;
6. Large-capacity local storage completely retains fault waveforms, action events and operation logs to support fault traceability and accident analysis;
7. Software programmable configuration with flexible functions and strong universality, adapting to renovation and new construction of various old and new distribution systems.
II. Technical Specifications
2.1 Electrical Sampling & Protection Parameters
Rated AC input: Secondary voltage 100V, secondary current 1A/5A adaptive, matching standard power transformers;
Rated frequency: 50Hz/60Hz adaptive, compliant with domestic and international power frequency operation standards;
Measurement accuracy: Three-phase voltage, current, active/reactive power, power factor, frequency and energy meet power secondary metering standards with accurate phase synchronization and zero sampling deviation;
Main protection functions: Directional/non-directional overcurrent protection, zero-sequence overcurrent protection, sensitive earth fault protection, thermal overload protection, over/undervoltage protection, frequency abnormality protection, breaker failure protection, phase discontinuity protection and optional arc protection;
Operation performance: Millisecond-level fault response with blind-spot-free judgment, supporting flexible tuning of multi-stage delay, interlock and mutual lock logic for graded protection coordination;
Binary input: Multi-channel programmable passive inputs for breaker status, energy storage, remote/local switching, disconnector status and equipment alarm signals;
Binary output: Multi-channel programmable relay outputs for breaker switching drive, fault alarm, system linkage interlock and remote signal output.
2.2 Power Supply & Power Consumption Parameters
Auxiliary power supply: DC80～250V / AC100～240V ultra-wide voltage adaptive power supply, compatible with conventional power operating power;
Power consumption: Low power consumption in normal operation with minimal temperature rise under full load, no heat accumulation or device aging during long-term heavy-load operation;
Power protection: Built-in reverse connection prevention, over/undervoltage self-locking, transient surge suppression and grid fluctuation fault tolerance for unstable on-site power conditions.
2.3 Communication & Time Synchronization Parameters
Hardware interfaces: Standard RJ45 Ethernet and RS485 serial port, optional optical fiber port for redundant networking;
Supported protocols: Full compatibility with IEC61850 MMS, IEC60870-5-103, Modbus TCP/RTU and DNP3;
Time synchronization: SNTP network time synchronization and IRIG-B hardware high-precision time synchronization with high station-wide time accuracy and zero deviation;
Remote functions: Supports remote parameter tuning, program upgrade, real-time telemetry upload, remote switching and remote fault reading & analysis.
2.4 Environmental & Protection Parameters
Operating temperature: -25℃～+55℃, stable protection, measurement and communication performance without attenuation or parameter drift in full temperature range;
Storage & transportation temperature: -40℃～+70℃, no circuit aging, structural deformation or program loss during long-term storage and transportation;
Operating humidity: 5%～95%RH non-condensing, suitable for dry and clean enclosed distribution rooms and constant-temperature central control rooms;
Protection class: Front panel IP54, top IP40, rear panel IP20, dustproof and moistureproof for indoor power cabinet installation;
EMC performance: Fully compliant with IEC61000 series power electromagnetic compatibility standards with excellent resistance to static, radiation, conduction and surge interference.
2.5 Structural & Physical Parameters
Specification: Standard 4U embedded panel structure, dimension 177mm×177mm×155mm, compatible with mainstream power cabinets;
Weight: Approx. 3.5kg, lightweight reinforced body with anti-vibration and anti-loosening performance for long-term cabinet vibration operation;
Mounting method: Standard embedded panel bolt fastening installation with accurate positioning and easy assembly for dense cabinet layout;
Material: Flame-retardant and anti-corrosion industrial shell with insulation and aging resistance for long-term continuous power system operation.
III. Key Features
3.1 Full-Coverage Feeder Protection with Accurate & Reliable Fault Judgment
Adopting ABB mature feeder protection algorithm, the device covers all common medium-voltage feeder faults, accurately identifying phase short circuit, single-phase grounding, overload overheating, voltage abnormality, frequency offset and switch failure. It supports directional judgment, zero-sequence judgment, graded delay interlock and auto-reclosing logic, effectively distinguishing internal faults and external interference to avoid protection misoperation, refusal and escalation tripping. Millisecond-level ultra-fast tripping isolates faulty circuits instantly, minimizing power outage scope and ensuring safe and stable operation of grid equipment and terminal loads, adapting to complex scenarios such as distribution network, industry and new energy.
3.2 High-Precision Full Electrical Measurement & Control for Lean O&M
High-speed AD digital sampling technology collects full three-phase electrical parameters including voltage, current, power, power factor, frequency and energy in real time, supporting load curve recording, energy statistics and operation trend analysis. The measurement accuracy meets power operation and metering standards, replacing traditional measuring instruments and realizing integrated protection, measurement and metering in one device. It simplifies cabinet configuration, reduces infrastructure and operation costs, and provides accurate data support for grid load regulation, energy consumption analysis and operation optimization.
3.3 Local & Remote Dual Control for Unattended Automation
Supports local panel manual operation and background remote telecontrol dual modes for breaker local/remote switching, real-time status monitoring and equipment inspection. Equipped with complete encrypted operation authority, remote control interlock and operation log traceability functions to eliminate manual misoperation risks. Compatible with mainstream intelligent substation and distribution network automation platforms, it realizes automatic fault location, isolation and line self-healing recovery, fully adapting to unattended intelligent substation operation requirements.
3.4 Complete Fault Traceability Capability for Efficient O&M Analysis
Built-in high-capacity non-volatile storage retains long-term fault waveforms, protection action events, equipment alarm records, manual operation logs and full-sequence operation data. It accurately records full-process electrical waveforms, action sequences, fault types and key parameters before and after faults, supporting background waveform analysis and accident review. It provides complete data basis for grid fault troubleshooting, hidden danger treatment, protection setting optimization and operation mode adjustment, greatly improving power fault disposal efficiency and operation refinement level.
3.5 High Anti-Interference & Stability for Harsh Power Conditions
The integrated protection design of full-loop electrical isolation, multi-level surge suppression and full-range electromagnetic shielding passes standard power EMC tests, effectively resisting strong electromagnetic interference from substation high-voltage equipment, inverters and switch switching. Adopting fully digital operation architecture without mechanical wearing parts, it operates stably in wide temperature range without parameter drift or logic disorder under high/low temperature, humidity and vibration conditions. With excellent environmental adaptability and long-term operational stability, it meets 7×24-hour uninterrupted continuous operation requirements.
3.6 Flexible Programmable Configuration with Excellent Universality & Expandability
Adopting modular software programmable architecture, protection logic, control strategy, I/O definition, communication parameters and time synchronization modes can be flexibly configured via software without hardware modification. It adapts to ordinary feeders, ring network lines, new energy grid connections, factory power outgoing lines and bus sections, compatible with old substation renovation, new intelligent substation construction and industrial distribution automation upgrading, meeting various power project renovation and expansion needs.
IV. Working Principle
The ABB REF615 HBFFAEAGNBC6BNA11G feeder protection and control device realizes medium-voltage feeder protection, measurement, control, recording and intelligent networking based on core mechanisms of high-speed digital sampling + multi-logic intelligent fault judgment + graded protection linkage + real-time data interaction + full-sequence event traceability.
After power-on, the device automatically completes full hardware self-inspection, sampling calibration, communication initialization, protection parameter loading and station-wide time synchronization, and enters real-time monitoring standby status after passing self-check. Analog signals from voltage and current transformer secondary circuits are converted into high-precision digital data via high-speed AD conversion. The core processor calculates and analyzes electrical amplitude, phase, frequency, load trend and sequence component characteristics in real time, and synchronously collects binary signals such as breaker position, local/remote status and equipment alarms to complete full-dimensional real-time operation monitoring.
Under normal grid operation, the device continuously performs high-precision electrical measurement, load statistics, status monitoring and real-time data upload, maintaining stable two-way data interaction with upper monitoring background and dispatch platforms. When feeder faults such as short circuit, grounding, overload, voltage/frequency abnormality and equipment failure occur, the device quickly compares real-time sampling data with preset protection fixed values and logic thresholds to accurately judge fault type, area and level, outputs tripping signals according to tuned time limit and interlock logic to drive breaker opening and isolate faults instantly. Meanwhile, it locks fault data, records full-process waveforms and action sequences, and actively uploads fault alarm information.
The device supports local manual operation and remote background telecontrol for parameter modification, setting tuning, switching control, program upgrade and loop verification. Full hardware self-diagnosis is enabled during operation, actively alarming and locking abnormal logic for hidden dangers such as sampling abnormality, communication interruption, power failure and hardware defects, fully ensuring safe, stable and reliable intelligent operation of the feeder distribution system.
V. Application Scenarios
1. 10kV/35kV urban distribution network systems: Protection, measurement and fault self-healing control for urban cable/overhead feeders, ring network lines, section and tie switches;
2. Industrial factory power systems: Comprehensive protection and automatic measurement & control for high-voltage outgoing lines, bus couplers and section switches in petrochemical, metallurgical and manufacturing industries;
3. New energy grid-connected systems: Feeder protection, anti-islanding monitoring, fault isolation and grid-connected safety management for distributed PV and small and medium-sized wind farms;
4. Intelligent substation renovation and new construction: Integrated protection & measurement and old comprehensive protection equipment replacement for feeder bays of medium and small substations;
5. Public building and park power distribution: High-voltage distribution safety protection, energy consumption monitoring and intelligent operation for large commercial, transportation hub and industrial parks;
6. Industrial and mining heavy-load power distribution: High-voltage feeder protection and measurement for impact load and continuous production conditions, adapting to complex industrial power environments.
