Description
ABB REF615C-E HCFFAEAGABC2BAA11E
I. Basic Information
Model：REF615C-E HCFFAEAGABC2BAA11E
Brand：ABB (Original), Relion® 615C-E customized enhanced series intelligent feeder protection and control IED, an optimized and customized version of standard REF615, specially developed for medium-voltage distribution ring networks, frequent faults and complex grounding conditions with accurate configuration, strong scenario adaptability and extremely high operational stability.
Product Positioning
The REF615C-E HCFFAEAGABC2BAA11E is a C-E customized enhanced feeder protection and control device of ABB Relion® 615 series. Optimized for 10kV/35kV ring network lines, cable-based distribution feeders, high-resistance grounding-prone lines and complex industrial power distribution scenarios, it integrates full basic feeder protection, high-precision power metering, intelligent switch control, professional fault recording, full-sequence event recording and high-speed multi-protocol communication functions. Compared with standard REF615, it strengthens high-resistance grounding judgment, ring network reclosing coordination, accurate fault location and basic power quality monitoring capabilities. It is the core secondary equipment for urban distribution network renovation, ring network automation and complex industrial power distribution systems, adapting to high-standard, high-reliability and high-fault-adaptability power engineering scenarios.
Hardware Architecture
Adopting industrial-grade 4U compact modular hardware architecture and ABB upgraded dedicated high-speed power processor, the device optimizes sampling algorithms for grid harmonics, grounding interference and load fluctuation, completely solving sampling drift, data distortion and fault misjudgment under complex working conditions. It integrates customized multi-channel high-precision sampling loops, programmable I/O matrix, independent hardware fault judgment units and large-capacity local storage, adapting to ring network protection logic and multiple reclosing sequence recording requirements. The internal full physical isolation of strong and weak current is equipped with multi-level lightning surge suppression, high-grade EMI shielding, static protection and filter circuits, with fully isolated loops for analog, binary, communication and power signals, achieving higher anti-interference level than standard devices. Equipped with high-definition LCD HMI, physical keys and multi-level status indicators, it supports on-site setting, fault tracing, loop transmission and parameter calibration. Built-in full-dimensional hardware self-diagnosis monitors equipment operation, sampling, communication and power status in real time, realizing active alarm and fault-tolerant locking to ensure 7×24-hour stable operation.
Mounting Specification
Adopts standard 4U embedded panel mounting, compatible with universal opening sizes of domestic 10kV/35kV secondary power cabinets, suitable for new intelligent substation construction, old distribution network substation renovation and dense cabinet layout of industrial high-voltage distribution rooms. With strict industrial anti-vibration, anti-shock, wide-temperature aging, dust and moisture resistance tests and optimized reinforced structure, it tolerates long-term substation temperature fluctuation, equipment vibration and slight dust and humidity, adapting to outdoor switchgear rooms and indoor distribution rooms. The front high-protection dustproof and moistureproof design and standardized rear partition wiring with separated strong and weak current ensure firm and anti-loosening terminals, fully complying with long-term power operation specifications.
Compatible Systems
Fully compatible with intelligent substation automation systems, urban distribution network ring network automation systems, industrial factory power monitoring systems, small and medium-sized new energy grid-connected systems, power SCADA scheduling systems and energy management platforms. It seamlessly connects with upper monitoring background, engineer workstations, power RTU and industrial PLC systems. Natively supports IEC61850, IEC60870-5-103, Modbus TCP/RTU, DNP3 and other mainstream power protocols, with SNTP and IRIG-B dual-mode time synchronization and GOOSE networking linkage. It supports multi-device coordinated self-healing control, remote setting modification, program upgrade, telemetry/remote control and active fault information upload, adapting to high-end intelligent distribution network operation and maintenance systems.
Product Characteristics
1. C-E customized enhanced logic optimizes judgment of high-resistance and intermittent grounding faults, adapting to complex fault conditions of cable and ring network lines;
2. Upgraded high-precision anti-interference sampling algorithm ensures stable sampling without drift and distortion under harmonic and load fluctuation conditions, greatly improving fault judgment accuracy;
3. Integrated full-function design covers protection, measurement, control, recording, communication and event recording to simplify cabinet equipment configuration;
4. Strengthened ring network reclosing, fault locking and interval linkage logic to meet automatic self-healing control requirements of distribution network ring networks;
5. High-grade EMC protection and full-loop electrical isolation resist strong substation electromagnetic interference and eliminate protection misoperation and refusal;
6. Large-capacity local storage completely retains ring network fault sequences, multiple reclosing action records and fault waveforms to support complex accident review;
7. Modular programmable configuration with flexible functions, adapting to new and old distribution network renovation, ring network upgrading and complex industrial power distribution scenarios.
II. Technical Specifications
2.1 Electrical Sampling & Protection Parameters
Rated AC input: Secondary voltage 100V, secondary current 1A/5A adaptive, matching standard industrial power transformer configurations;
Rated frequency: 50Hz/60Hz adaptive with frequency accuracy meeting power industry standards, compatible with various industrial power frequency distribution systems;
Measurement accuracy: Three-phase voltage, current, active/reactive power, power factor, frequency and energy meet power secondary metering standards, supporting load curve recording and basic power quality monitoring with accurate phase sampling and stable data;
Main protection functions: Basic protection (directional/non-directional overcurrent, zero-sequence overcurrent, sensitive earth fault, thermal overload, over/undervoltage, frequency abnormality, breaker failure) + C-E customized enhanced protection (high-resistance earth fault protection, ring network adaptive reclosing, three-phase unbalance protection, fault interval judgment, trip circuit supervision), optional arc protection module;
Operation performance: Millisecond-level ultra-fast fault response with no dead zone for complex grounding and ring network linkage faults, supporting flexible tuning of multi-stage delay, interlock, mutual lock and multiple reclosing, with accurate hierarchical protection coordination and strong ring network linkage coordination;
Binary input: Multi-channel programmable passive inputs for breaker status, spring energy storage, remote/local switching, disconnector status, ring network locking signals and equipment alarm signals;
Binary output: Multi-channel programmable relay outputs for breaker switching, fault alarm, ring network linkage locking, remote signal output and self-healing control drive.
2.2 Power Supply & Power Consumption Parameters
Auxiliary power supply: DC80～250V / AC100～240V ultra-wide voltage adaptive power supply, compatible with conventional substation AC/DC operating power;
Power consumption: Optimized low-power design with extremely low temperature rise under full load, no heat accumulation, device aging or performance attenuation under long-term heavy load and frequent fault operation;
Power protection: Built-in reverse connection prevention, over/undervoltage self-locking, transient surge suppression and grid fluctuation fault tolerance, resisting instantaneous grid impact and voltage fluctuation of ring networks.
2.3 Communication & Time Synchronization Parameters
Hardware interfaces: Standard RJ45 Ethernet and RS485 serial port, optional LC optical fiber port for redundant networking and GOOSE linkage networking;
Supported protocols: Full compatibility with IEC61850 MMS/GOOSE, IEC60870-5-103, Modbus TCP/RTU, DNP3 mainstream power protocols;
Time synchronization: SNTP network time synchronization and IRIG-B hardware high-precision time synchronization with high station-wide time accuracy, ensuring consistent action sequence of multi-device ring networks;
Remote functions: Supports remote parameter tuning, ring network logic configuration, program upgrade, real-time telemetry upload, remote control and fault data export & analysis.
2.4 Environmental & Protection Parameters
Operating temperature: -25℃～+55℃, stable performance of protection logic, sampling accuracy, communication and ring network linkage without attenuation 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 enclosed distribution rooms, switchgear rooms and constant-temperature central control rooms;
Protection class: Front panel IP54, top IP40, rear panel IP20, dustproof, moistureproof and foreign matter resistant for indoor cabinet installation;
EMC performance: Compliant with the highest IEC61000 series EMC standards, with strong resistance to static, radiation, conduction, surge and harmonic interference, adapting to harsh ring network interference conditions.
2.5 Structural & Physical Parameters
Specification: Standard 4U embedded panel structure, dimension 177mm×177mm×155mm, compatible with opening sizes of mainstream domestic power cabinets;
Weight: Approx. 3.5kg, lightweight reinforced anti-vibration structure tolerates long-term cabinet vibration and frequent operation;
Mounting method: Standard embedded bolt fastening installation with accurate positioning and easy assembly, supporting dense and regular cabinet layout;
Material: Flame-retardant and anti-corrosion industrial shell with insulation and aging resistance for long-term uninterrupted power system operation.
III. Key Features
3.1 C-E Customized Grounding Enhancement for Complex Cable Ring Network Faults
Equipped with exclusive REF615C-E customized logic, the device is specially optimized for high-resistance grounding, intermittent grounding and concealed grounding faults of urban distribution network cable lines, breaking the judgment blind area of ordinary comprehensive protection devices. It accurately distinguishes grounding faults from grid harmonic interference and load fluctuation disturbance, effectively avoiding missed judgment and refusal of grounding faults. Meanwhile, it optimizes ring network operation logic, adapting to the timing of ring network closing, opening, fault isolation and self-healing recovery. Multi-stage reclosing logic can be flexibly configured according to ring network architecture, greatly improving the fault disposal capability and power supply reliability of distribution network ring network systems.
3.2 High-Precision Anti-Interference Measurement & Control for Complex Grid Conditions
Adopting upgraded anti-interference digital sampling algorithm, it optimizes filtering and operation logic for cable capacitance current, grid harmonics, three-phase unbalance and load impact interference. The full electrical measurement accuracy stably meets metering-level requirements. It realizes integrated protection, measurement, metering and basic power quality monitoring, replacing traditional measuring instruments and measurement & control equipment, providing accurate data support for ring network load regulation, fault analysis and grid optimization.
3.3 Exclusive Ring Network Linkage Logic for Distribution Network Self-Healing Operation
Built-in customized ring network protection linkage program supports multi-device GOOSE network communication, fault interval locking, adjacent bay linkage tripping and adaptive reclosing. It quickly locates ring network fault intervals, automatically isolates faulty lines and restores power supply in healthy areas, realizing intelligent self-healing control of distribution network ring networks. It supports local manual operation and remote background telecontrol dual modes, equipped with complete anti-misoperation, permission locking and operation traceability logic to fully ensure ring network operation safety, adapting to unattended distribution network automatic operation and maintenance mode.
3.4 Full-Dimensional Fault Traceability for Accurate Complex Accident Review
Expanded local storage is specially adapted to the recording requirements of multiple ring network faults, reclosing actions and linkage sequences, completely retaining fault waveforms, protection action events, ring network linkage records, manual operation logs and equipment alarm information. It accurately records electrical changes, action sequences and linkage logic execution status before and after faults, solving the problems of chaotic timing and missing data of traditional devices during ring network faults, providing complete data basis for complex ring network accident review, hidden danger troubleshooting, setting optimization and grid upgrading.
3.5 High Stability & Strong Protection for Harsh On-Site Conditions
The integrated protection design of full-loop electrical isolation, multi-level surge suppression and full-range electromagnetic shielding is specially optimized for distribution network switchgear rooms, outdoor cabinets and industrial high-voltage distribution rooms with strong electromagnetic interference and large temperature & humidity fluctuation. The mechanical-free full-digital architecture operates stably without parameter drift or logic disorder under wide temperature range, long-term grid disturbance, load fluctuation and electromagnetic interference, realizing 7×24-hour uninterrupted stable operation and adapting to various complex power distribution scenarios.
3.6 Flexible Programmable Configuration for Diverse Renovation Scenarios
Adopting modular programmable software architecture, C-E exclusive enhanced logic, ring network linkage strategy, protection settings, I/O definition, communication protocols and time synchronization modes can be flexibly configured via PCM600 software without hardware modification. It adapts to ordinary feeders, cable ring networks, industrial outgoing lines, bus sections and small and medium-sized new energy grid connections, perfectly compatible with old distribution network renovation, ring network automation upgrading and new intelligent distribution network projects with excellent universality and scenario adaptability.
IV. Working Principle
The ABB REF615C-E HCFFAEAGABC2BAA11E customized enhanced feeder protection and control device realizes protection, measurement & control, linkage control, fault analysis and intelligent operation & maintenance of medium-voltage ring networks and complex feeder systems based on core mechanisms of anti-interference high-speed digital sampling + C-E customized complex fault intelligent judgment + ring network multi-device linkage protection + full-dimensional data monitoring + self-healing control + full-sequence fault traceability.
After power-on, the device automatically completes full hardware self-inspection, sampling calibration, communication initialization, C-E customized protection logic loading and station-wide time synchronization, and enters real-time monitoring standby status after passing self-check. Secondary analog signals from primary VT/CT are converted into digital data via high-speed AD conversion. The core processor analyzes electrical amplitude, phase, frequency, sequence component, grounding characteristics and harmonic parameters in real time, and synchronously collects binary information such as breaker status, ring network locking signals, local/remote status and equipment alarms to complete full-dimensional real-time monitoring of power distribution circuits.
Under normal grid operation, the device continuously performs high-precision electrical measurement, load statistics, status monitoring and real-time data upload, maintaining two-way data interaction with dispatch, monitoring background and adjacent bay devices to ensure steady-state operation monitoring of ring networks. When phase short circuit, high-resistance grounding, intermittent grounding, overload, voltage abnormality, three-phase unbalance and other faults occur, the device invokes C-E exclusive enhanced judgment logic to accurately identify fault type and interval, outputs tripping signals according to ring network linkage locking conditions and setting delay to isolate faults quickly. Meanwhile, it links adjacent devices to complete ring network fault isolation and power supply self-healing recovery, synchronously locks fault waveforms, records action sequences and actively uploads alarm information.
The device supports local manual operation and remote background telecontrol for parameter setting, ring network logic configuration, switching control, program upgrade and loop verification. Full hardware self-diagnosis and logic self-inspection are enabled during operation, actively alarming and locking abnormal logic for hidden dangers such as sampling abnormality, communication interruption, ring network linkage failure and power fault, fully ensuring safe, stable and intelligent operation of complex ring networks and industrial power distribution systems.
V. Application Scenarios
1. 10kV/35kV urban cable ring network power distribution: Protection, measurement & control, fault isolation and self-healing control for urban cable ring networks and overhead-cable hybrid ring network lines;
2. High-resistance grounding-prone power distribution scenarios: Complex grounding fault protection for old urban lines, long-distance cable lines and power distribution lines in humid environments;
3. Complex industrial factory power systems: Protection and measurement & control for industrial high-voltage outgoing lines and bus coupler loops with large load fluctuation and obvious harmonic interference;
4. Distribution network automation renovation projects: Core bay protection equipment for upgrading traditional substations to ring network automation and fault self-healing systems;
5. Small and medium-sized new energy grid-connected power distribution: Fault protection, voltage monitoring and grid disturbance adaptation for distributed PV and wind farm grid-connected feeders;
6. Switchgear rooms and outdoor distribution cabinets: Protection and measurement & control for medium-voltage power distribution loops with outdoor working conditions, large temperature & humidity fluctuation and strong electromagnetic interference.
