Description
1. Product Overview
ABB REF615C‑E HCFKAEADABC2BAA11E is a new‑generation high‑performance intelligent feeder protection and control IED within ABB Switzerland Relion® 615 series. Designed for power distribution networks, industrial substations, plant auxiliary power systems and distributed grid‑connection systems, it integrates relay protection, electrical measurement, switch control, fault recording, condition monitoring and communication networking. It serves as the core secondary equipment for intelligent, integrated and all‑in‑one medium‑low‑voltage power distribution systems.
As a complete configured model of REF615C‑E, its hardware configuration, software logic and interface resources are fully adapted to high‑reliability power supply scenarios including self‑owned power stations for industrial and mining enterprises, municipal distribution networks, data centers, park power distribution and offshore platform power supply. Adopting compact plug‑gable modular structure and ABB dedicated embedded power operation platform, the device features accurate protection logic, high‑measurement precision, stable operation, excellent anti‑interference performance, flexible configuration and convenient maintenance. It can fully replace discrete traditional protection, control‑measurement and instrument devices to realize comprehensive safety protection and intelligent management for distribution circuits. It is a mainstream high‑end compatible device for technical renovation of new and old substations, new‑built power distribution projects and replacement of obsolete protection equipment.
2. Functional Features
2.1 Complete Set of Feeder Relay Protection with Comprehensive Coverage
The device is embedded with dedicated full‑range feeder protection logic, including over‑current protection, instantaneous over‑current protection, definite‑time over‑current protection, zero‑sequence over‑current protection, earth‑fault protection, over‑voltage / under‑voltage protection, over‑frequency / under‑frequency protection, power limit protection, current unbalance protection and thermal overload protection, covering conventional and extended protection functions. It supports directional / non‑directional fault discrimination to accurately distinguish internal and external faults and avoid protection mal‑operation and refusal‑to‑operate. Optimized for distribution ring networks, radial networks and distributed generation grid‑connection conditions, it effectively handles various faults such as circuit short‑circuit, earth fault, overload, voltage abnormality and frequency disturbance. Faulty circuits can be tripped rapidly and fault points isolated so as to guarantee safety of power‑system equipment and circuits and improve power‑grid operational stability.
2.2 High‑precision Full‑quantity Electrical Measurement for Real‑time and Accurate Data
Equipped with high‑precision synchronous sampling core, it collects multi‑dimensional electrical parameters in real‑time, including three‑phase phase voltage, line voltage, three‑phase current, frequency, phase angle, power factor, active / reactive / apparent power, energy and harmonic content. It also calculates operational data such as current unbalance factor, equipment thermal load and load demand. Its measurement accuracy meets power‑industry metering and monitoring standards with no long‑term drift or sampling distortion. Capable of replacing traditional multi‑function power meters, it supplies authentic and reliable raw data for background monitoring, energy statistics, load analysis and equipment condition evaluation, realizing refined operation and maintenance management for distribution circuits.
2.3 Integrated Switch Control and Interlock Logic
It integrates electric control logic for circuit‑breakers, disconnectors and earthing switches, supporting three operation modes: local manual operation, remote control and automatic logic control. Accurate switch closing / tripping control, status acquisition and position indication are realized. Built‑in programmable interlock logic allows configuration of electrical interlock, process interlock, fault interlock and automatic bus transfer equipment (ABT) linkage according to field process requirements. It effectively prevents safety risks such as mis‑operation, on‑load switching and mis‑earthing, adapting to complex operation conditions including industrial power distribution, ABT switching and multi‑circuit linkage, and enhances operational safety and automation level of power‑distribution systems.
2.4 Complete Fault Recording and Event Logging with Powerful Traceability
Equipped with large‑capacity event memory and fault‑recording function, the device fully records fault‑time waveforms, fault sequence, fault types, action setting values, switch status, operation logs and alarm information. Millisecond‑level accurate time marking enables full restoration of the whole fault process for precise identification of fault causes, locations and nature. It provides complete data support for fault troubleshooting, accident analysis, setting optimization and system rectification. Long‑term operation event archiving is supported to facilitate full‑lifecycle equipment status tracing and operation‑maintenance review.
2.5 Multi‑protocol Intelligent Communication Adaptable to Digital Substations
Multiple communication interfaces including industrial Ethernet and serial ports are standard. It natively supports mainstream power‑system protocols such as IEC61850, Modbus, DNP3, IEC103 / 104 for seamless connection with power background monitoring systems, substation integrated automation systems, unattended platforms and energy‑management systems. Functions including real‑time data uploading, remote setting modification, remote logic configuration, remote firmware upgrade and remote alarm push are available. It perfectly satisfies requirements for digital networking, unattended operation and remote centralized control of intelligent substations with high compatibility with new and legacy power‑distribution system architectures and strong expandability.
2.6 Programmable Flexible Configuration for Wide Condition Adaptability
With dedicated ABB configuration software, users are allowed to customize protection settings, control logic, interlock relations, alarm thresholds, IO mapping and display contents. Functional logic can be flexibly configured according to distribution‑circuit capacity, load type, operation mode, grid‑connection conditions and interlock requirements. It adapts to diversified scenarios such as grid‑supplied power, island‑mode operation, distributed generation grid‑connection, multi‑circuit linkage and automatic bus transfer. It accurately matches power‑distribution process requirements across industries including industrial, municipal and offshore platforms, outperforming general‑purpose protection devices in functional adaptability.
2.7 Industrial‑grade Robust Design for Long‑term Stable Operation under Harsh Conditions
Designed to meet the highest reliability standards for power‑industry equipment, the device has passed strict tests including high‑level EMC electromagnetic compatibility, high‑low‑temperature cycling, damp‑heat ageing, vibration‑shock and electrostatic immunity. It delivers outstanding performance against electromagnetic interference, voltage fluctuation and temperature‑humidity alternation, tolerating heavy electromagnetic field, dust and damp‑heat in substations under continuous 7×24‑hour operation. No logic drift, parameter failure or hardware fault occurs, making it suitable for harsh installation environments such as indoor and outdoor switchgears and industrial power‑distribution cabinets.
2.8 Plug‑gable Modular Structure for Easy Maintenance and Non‑intrusive Replacement
Adopting standardized plug‑gable modular design of Relion series, the main unit, IO circuits and interface units are arranged in independent modules for convenient disassembly, assembly and maintenance. The front panel is fitted with high‑definition Chinese graphic LCD for on‑site viewing of parameters, fault information, operation status and operation logs with intuitive human‑machine interaction. Standard cut‑out size, wiring definition and installation dimensions fit mainstream switchgear layouts. Legacy devices of the same model can be directly replaced on‑site without cabinet reconstruction or re‑wiring, greatly cutting downtime caused by technical renovation and maintenance.
3. Technical Specifications
3.1 Basic Specifications
Product Model: REF615C‑E HCFKAEADABC2BAA11E Manufacturer: ABB (Switzerland) Product Series: Relion® 615 Series Intelligent Protection & Control IED Product Type: Integrated feeder protection, measurement, control and communication composite device Core Positioning: Main feeder protection plus control‑measurement terminal for medium‑low‑voltage distribution systems, realizing circuit safety protection, data monitoring, automatic switch control and digital networking Applicable Scenarios: Industrial plant auxiliary power, municipal distribution networks, substation feeders, data‑center power distribution, offshore‑platform power distribution, distributed generation grid‑connection systems Key Features: Complete feeder protection, high‑precision measurement, programmable logic, fault recording, multi‑protocol communication, strong anti‑interference capability, modular maintenance, on‑site non‑intrusive replacement
3.2 Protection‑function Parameters
Main Protection Configuration: Instantaneous over‑current protection, definite‑time instantaneous over‑current protection, over‑current protection, zero‑sequence earth‑fault protection, out‑of‑step protection Auxiliary Protection: Over‑voltage, under‑voltage, over‑frequency, under‑frequency, overload, current unbalance, power limit, thermal overload blocking Fault Discrimination: Directional / non‑directional fault discrimination, adaptive fault detection, precise fault location Protection Characteristics: Accurate protection operating time delay, high setting‑value precision, inrush‑current immunity, no mal‑operation, no refusal‑to‑operate Blocking Logic: Fault blocking, operation blocking, process interlock, remote / local permission blocking Applicable Networks: Radial network, ring network, mesh network, distribution network with distributed generation grid‑connection
3.3 Measurement‑accuracy Parameters
Measurement Accuracy Class: 0.2S high‑precision power‑industry standard Acquired Parameters: Three‑phase phase voltage, line voltage, three‑phase current, frequency, phase angle, power factor, active / reactive / apparent power, bi‑directional energy, harmonics Calculated Parameters: Current unbalance factor, thermal‑load ratio, load demand, voltage qualification rate Sampling Characteristics: Synchronous high‑speed sampling, waveform‑distortion correction, harmonic‑interference immunity, zero long‑term drift Data Refresh: Millisecond‑level data update, real‑time tracking of dynamic changes of generators and loads, excellent data synchronization
3.4 Electrical and Communication Parameters
Operating Power Supply: Wide‑range AC / DC universal power supply complying with standard power‑system operating power Analog Input: Compatible with secondary‑side signals of conventional CT / PT transformers Digital Input: Multi‑channel passive digital inputs for acquisition of switch position, local signals and alarm status Digital Output: Multi‑channel programmable relay outputs for tripping, closing, alarming and linkage Communication Interfaces: Industrial Ethernet, RS485 / RS232 serial port Communication Protocols: IEC61850, Modbus RTU / TCP, DNP3, IEC103, IEC104 Transmission Characteristics: Low latency, high synchronization, anti‑interference, zero‑packet loss, precise time sequence
3.5 Environmental and Mechanical Parameters
Operating Temperature: ‑25 ℃ ~ +60 ℃ Storage Temperature: ‑40 ℃ ~ +85 ℃ Relative Humidity: 5 % ~ 95 % non‑condensing Ingress Protection: Front panel IP54, main body IP20, suitable for enclosed switchgear environment Electromagnetic Compatibility: Complies with high‑level EMC immunity criteria of IEC61000; anti‑static, anti‑radiation and anti‑pulse interference Seismic Performance: Passes power‑equipment vibration‑shock tests, tolerates long‑term micro‑vibration inside cabinets Mounting Method: Standard cabinet flush‑mounting, fits cut‑out dimensions of conventional high‑low‑voltage switchgears Operational Characteristics: 7×24‑hour non‑stop operation, long maintenance‑free cycle, superior stability
4. Hardware Configuration & Structural Advantages
4.1 Five‑in‑one Integrated Architecture Simplifying Secondary‑system Structure
A single device integrates five core functions: relay protection, high‑precision measurement, switch control, fault recording and communication networking. It replaces the discrete solution composed of independent protection device, control‑measurement unit, power meter, fault recorder and communication manager. Secondary wiring inside switchgears is greatly simplified, equipment quantity and fault points are reduced. The secondary power‑distribution‑system architecture is simplified at hardware level, improving coordination and stability of the whole system and lowering later‑stage operation‑maintenance workload.
4.2 Dedicated High‑precision Power‑grade Sampling Core Delivering Stable and Reliable Data
Adopting ABB power‑grade dedicated sampling chips and algorithms optimized for complex conditions in distribution systems such as harmonics, voltage distortion, load fluctuation and switching inrush current, it effectively filters interfering signals to guarantee accurate fault discrimination and authentic and stable measurement data. It avoids sampling drift, protection misjudgment and data fluctuation occurring in ordinary devices, supplying precise and reliable data support for protection action, load dispatching, energy statistics and fault analysis for refined power‑operation‑maintenance management.
4.3 Open Programmable Logic Platform Adapting to Complex Power‑distribution Processes
Built‑in open programmable logic platform allows users to freely edit protection logic, interlock relations, action sequence, IO functions and alarm rules. Complex functions such as automatic bus transfer, ring‑network linkage, fault blocking, over‑tripping prevention and distributed generation grid‑connection adaptation can be flexibly realized without additional secondary relays or logic modules. It meets requirements of various non‑standard and complex power‑distribution processes with industry‑leading functional expandability and scenario adaptability.
4.4 High‑grade EMC Design with Powerful Anti‑interference Performance
Circuits adopt isolation design, multi‑stage filtering and shielding anti‑interference technology, and have passed highest‑grade power‑industry EMC tests. It effectively resists strong electromagnetic radiation inside switchgears, switching over‑voltage, pulse interference and electrostatic shock. Under heavy‑interference substation conditions, protection logic remains correct, measurement data free of drift and communication links uninterrupted to ensure stable equipment operation under harsh electromagnetic environments.
4.5 Plug‑gable Modular Structure for Efficient Installation and Maintenance
The plug‑gable modular main unit features independently partitioned internal functional units with well‑organized layout. Disassembly, inspection and replacement can be completed without modifying external wiring. High‑definition Chinese graphic interface visualizes on‑site display of operating parameters, fault codes, alarm information and switch status for intuitive troubleshooting. Standard cabinet‑mounting dimensions are compatible with new and legacy switchgear layouts. Obsolete protection‑control‑measurement devices can be directly replaced on‑site, greatly shortening downtime during technical renovation and cutting maintenance costs.
5. Application Scenarios
- Industrial Plant Auxiliary‑power Distribution System: Widely applied in high‑low‑voltage feeder circuits of factories, industrial parks and data centers for accurate protection against circuit overload, short‑circuit and earth fault, as well as load monitoring, automatic switch control and remote operation‑maintenance to guarantee continuous and stable power supply for industrial production.
- Municipal and Public Distribution‑network System: Suitable for power‑distribution circuits of urban distribution networks, residential quarters and public buildings. It satisfies requirements for fast fault clearing, precise fault location, remote‑data transmission and unattended operation‑maintenance for distribution networks, improving intelligence level and power‑supply reliability of municipal power distribution.
- Substation Integrated‑automation System: Serves as main protection and control‑measurement equipment for feeders in switching stations and small‑medium‑sized substations. It adapts to integrated‑automation‑system networking for centralized monitoring of full‑station data, unified fault management and remote dispatching control, complying with construction standards for intelligent substations.
- Distributed‑generation Grid‑connection Power‑distribution: Applied to grid‑connection feeder circuits of photovoltaic, wind‑power and self‑owned generators. Protection logic is optimized for grid‑connection disturbance and bi‑directional power flow to guarantee grid‑connection safety including anti‑islanding and anti‑reverse‑power functions and enhance stability of distributed‑generation grid‑connection.
- Offshore‑platform and Heavy‑industry Power‑distribution System: Benefiting from high anti‑interference capability and long‑term stable performance, it adapts to power‑distribution systems under harsh conditions on offshore platforms and heavy‑industrial plants. It withstands damp‑heat, salt‑mist, vibration and heavy electromagnetic interference to ensure power‑supply safety under special‑scenario conditions.
