Description
1. Product Overview
ABB REF615E-E (Full Order Code: HBFAABAANAA4BNA11E) is an industrial standard intelligent feeder protection and control IED within the ABB Relion® 615 series. Designed for municipal medium-voltage distribution networks, industrial auxiliary power systems and feeder circuits of conventional substations, it serves as a highly integrated, stable and versatile all-in-one device for relay protection and automation measurement & control.
This model adopts standardized fixed configuration for REF615E-E. Its hardware interfaces, protection logic and communication functions fully comply with domestic standards for conventional 10 kV/35 kV distribution systems. Free of redundant special functions, it features high reliability, cost effectiveness and maintenance-free operation, and becomes mainstream standard equipment for new construction, renovation and replacement of traditional distribution systems.
The device strictly complies with IEC international power standards as well as technical specifications for medium-voltage feeder protection equipment issued by State Grid and China Southern Power Grid. It adopts proven industrial-grade modular pluggable hardware architecture equipped with high-precision synchronous sampling units, dedicated power processors and standardized communication modules. Outstanding strengths include mature protection algorithms, stable sampling accuracy, strong anti-interference performance, zero long-term parameter drift and ultra-low failure rate.
HBFAABAANAA4BNA11E is equipped with standardized I/O points and complete basic protection configurations, suitable for most conventional radial and ring medium-voltage feeder operating conditions. It can be put into service without complex configuration and directly replace legacy microprocessor-based protection devices on site. It is widely deployed for feeder protection, measurement, control and operation in urban distribution stations, industrial park power rooms, enterprise captive substations and public building power distribution systems.
2. Technical Features
2.1 Complete Standardized Protection Suiting All Conventional Distribution Scenarios
The device incorporates mature and universal feeder protection logic verified by massive global field applications. It covers all fundamental protection functions required for medium-voltage feeders. It reliably identifies and handles typical faults in conventional distribution networks including short circuit, overload, earth fault, voltage abnormality, frequency fluctuation and three-phase unbalance. Protection setting is straightforward and graded coordination can be easily implemented, fully satisfying multi-level protection coordination requirements of conventional distribution networks. Without redundant functions or logic defects, it adapts to various standard power distribution operation scenarios.
2.2 High-Precision Steady-State Sampling for Stable and Reliable Operational Data
Equipped with ABB proprietary high-precision synchronous sampling chips and adaptive filtering algorithms, the unit effectively filters clutter signals caused by load variation and electromagnetic interference on site to ensure accurate sampling of current, voltage, power, energy and other electrical parameters. No zero drift or accuracy degradation occurs during long-term operation. Excellent steady-state measurement precision delivers reliable data support for distribution monitoring, load statistics, energy metering and fault analysis.
2.3 Standard Multi-Protocol Communication Compatible with Mainstream Integrated Automation Systems
Natively integrated with standardized power communication interfaces and protocols, it fully supports mainstream domestic distribution communication standards including IEC61850 Ed2, IEC60870-5-103 and Modbus RTU/TCP, with Ethernet and RS485 available as transmission media. It can seamlessly connect to integrated automation systems of smart substations, distribution automation platforms and power monitoring systems from various manufacturers to realize four-remote functions (telemetry, telesignal, remote control, remote adjustment) and meet digital monitoring demands for conventional power distribution.
2.4 Modular Pluggable Hardware for Simplified Maintenance and Superior Compatibility
Built on ABB classic modular pluggable architecture, power supply, sampling, I/O and communication modules are arranged in independent partitions without mutual interference. Single modules can be replaced separately without powering off the whole unit, modifying secondary wiring or reconfiguring programs. HBFAABAANAA4BNA11E features standardized universal point configuration compatible with both new and legacy distribution cabinets and secondary wiring specifications. It supports on-site replacement of old equipment, system expansion and circuit reconstruction, greatly cutting maintenance and technical transformation costs.
2.5 Full-Dimensional Self-Diagnosis & Alarming for Compliant and Traceable O&M
Integrated hardware-software self-diagnosis mechanism continuously monitors power supply status, sampling circuits, I/O ports, communication links and program operation 24/7. It accurately locates hidden risks such as hardware faults, circuit abnormalities and communication interruption and triggers both local and remote active alarms. The device permanently stores SOE records, protection operation messages, fault records and operation logs, completely retaining full-cycle data of equipment operation and faults to satisfy fault tracing, operation filing and compliance inspection requirements of the power industry.
2.6 Rigorous Industrial-Grade Protection for Various Conventional Sites
The complete unit has passed IEC-standard EMC electromagnetic compatibility tests, temperature cycling aging, vibration shock and humidity cycling tests, delivering excellent resistance against dust, moisture, vibration and electromagnetic interference. Free of mechanical wearing components, the device features low power consumption and low temperature rise. It supports continuous 7×24-hour operation and runs stably in indoor power rooms, outdoor switch stations, industrial workshops and other conventional industrial power sites, adapting to power, manufacturing, chemical, municipal and other industries.
2.7 Dual HMI Design to Boost Efficiency of Commissioning and Inspection
It is fitted with a high-resolution Chinese LCD Local Human-Machine Interface (LHMI) supporting local parameter viewing, setting configuration, fault query, status monitoring and circuit commissioning. Meanwhile, embedded web-based Remote Human-Machine Interface (WHMI) enables remote web commissioning, parameter modification, oscillography export and logic verification. No dedicated portable commissioning device is required, significantly simplifying daily inspection, fault troubleshooting and equipment commissioning processes and improving power distribution operation efficiency.
3. Technical Specifications
3.1 Basic Specifications
Model: REF615E-E Full Order Code: HBFAABAANAA4BNA11E Brand: ABB Series: Relion® 615 Standard Industrial Series Device Type: Medium-Voltage Intelligent Feeder Protection and Control IED Core Functions: Basic medium-voltage feeder protection, full electrical parameter measurement, intelligent circuit breaker control, condition monitoring, fault recording traceability, standardized communication operation Applicable Scenarios: 10 kV/35 kV conventional distribution feeders, municipal power circuits, industrial auxiliary feeders, conventional incoming/outgoing feeders of substations, legacy distribution system renovation Hardware Features: Standard modular pluggable structure, highly integrated industrial hardware, universal I/O configuration, stable redundant communication Core Advantages: Mature logic, stable operation, strong compatibility, easy maintenance, cost effectiveness, long-term maintenance-free operation
3.2 Protection Function Specifications
Main Protection Functions: Three-stage overcurrent protection (instantaneous overcurrent, definite-time delayed instantaneous overcurrent, definite-time overcurrent), zero-sequence overcurrent protection, conventional earth fault protection, negative-sequence overcurrent protection Backup Protection: Overvoltage protection, undervoltage protection, overload protection, thermal overload protection, under-frequency load shedding, over-frequency protection, three-phase unbalance protection Auxiliary Protection: Circuit breaker failure protection, line auto-reclosing, fault blocking protection, circuit abnormality supervision, soft-start blocking Protection Accuracy: Setting error for current and voltage protection ≤ ±1.5%; operating time error ≤ ±20 ms Operating Characteristics: Supports both definite-time and inverse-time modes; customizable protection curves for graded coordination of multi-level power grids Fault Tolerance: Adaptive to normal load fluctuation, minor harmonic interference and transient grid disturbance, effectively preventing unwanted tripping, failure to trip and cascading tripping
3.3 Measurement Accuracy Specifications
Measured Quantities: Three-phase current, three-phase voltage, active power, reactive power, apparent power, power factor, system frequency, three-phase unbalance factor, accumulated energy, conventional harmonic contents, power flow direction monitoring Measurement Accuracy: Current & voltage ±1.5%; power & energy ±2.0%; frequency ±0.01 Hz Sampling Characteristics: High-speed synchronous sampling with adaptive filtering, effective suppression of on-site interference and excellent steady-state measurement stability Data Statistics: Daily/monthly/annual energy accumulation, operation extreme value recording, load curve storage, operating trend analysis
3.4 Communication & Interface Specifications
Communication Protocols: IEC61850 Ed2, IEC60870-5-103, Modbus RTU/TCP, DNP3 Communication Interfaces: 100 Mbps Ethernet ports, RS485/RS232 serial communication ports Networking Modes: Single network, point-to-point communication, bus networking, suitable for conventional distribution automation architecture Data Transmission: Real-time upload of telemetry and telesignal data, remote reception of remote control & remote adjustment commands, active push of fault messages, event records and oscillography files Commissioning Interfaces: Dedicated local service port, remote web commissioning port supporting online configuration, parameter modification and logic verification
3.5 Electrical Power Supply Specifications
Operating Power Supply: Wide-range universal AC/DC supply Operating Voltage Range: 80%～120% of rated voltage, adaptable to regular grid voltage fluctuations Power Supply Features: Built-in protection circuits against surge, ESD, overvoltage, overcurrent and short-duration power failure Power Consumption: Low overall power consumption design; low temperature rise without power drift or parameter deviation during long-term operation Supply Stability: Maintains continuous operation without restart or data loss under transient grid fluctuations and short power interruptions
3.6 I/O & Control Specifications
Binary Inputs: Multiple passive opto-isolated binary inputs for collection of circuit breaker switching position, spring charged status, local/remote status, equipment alarm signals and interlock status Binary Outputs: Multiple relay outputs for circuit breaker switching drive, fault alarm output, accident trip output and system interlock linkage Control Functions: Local manual control, remote control, customizable logic interlock, auto-reclosing, fault lockout shutdown I/O Characteristics: Fully opto-isolated ports with anti-interference and anti-false triggering performance suitable for industrial sites with strong electromagnetic fields Interlock Logic: Supports user-defined multi-channel I/O blocking and interlock logic to satisfy conventional on-site power distribution requirements
3.7 Environmental & Certification Specifications
Operating Temperature: -25℃ ~ +70℃ Storage Temperature: -40℃ ~ +85℃ Operating Humidity: 5%～95%RH (non-condensing, no strongly corrosive gas) Electromagnetic Compatibility: Fully complies with IEC61000 series industrial EMC standards, resistant to conventional electromagnetic interference, electrostatic discharge and harmonic disturbance Protection Class: Front panel IP54; terminal blocks IP20 Mounting Type: Standard cabinet embedded mounting Operation Mode: Unattended stable continuous operation 24/7 all year round Compliance: Conforms to IEC international power standards and technical specifications for conventional distribution equipment of State Grid and China Southern Power Grid, matching domestic power operation systems
4. Operating Principle
The ABB REF615E-E HBFAABAANAA4BNA11E standard feeder protection and control IED adopts an industrial dedicated power main controller as its core. Based on high-precision synchronous sampling technology, adaptive interference filtering algorithms and mature standardized feeder protection logic, it realizes integrated stable operation including protection, measurement, control, communication and traceability for medium-voltage feeders.
After power-on, the unit automatically completes full hardware self-test, sampling circuit verification, I/O initialization, communication protocol matching, system parameter loading and protection logic verification to finish initialization and standby. It ensures fault-free startup, stable program execution and intact communication links.
During normal operation, high-precision synchronous sampling circuits collect fundamental electrical parameters such as three-phase current, three-phase voltage and system frequency. After filtering and calculation, complete operating parameters including power, energy, three-phase unbalance factor and power flow direction are obtained. On one hand, operating status, electrical parameters and alarm information are displayed on the local LCD for on-site inspection and commissioning. On the other hand, four-remote data are uploaded to background monitoring systems through standardized communication links to realize remote visualized digital monitoring of distribution circuits. Meanwhile, binary signals such as circuit breaker position, spring charged status and local/remote selection are continuously monitored, and predefined interlock and blocking logic is strictly executed to guarantee stable and compliant operation of distribution systems.
When common faults occur on feeders such as short circuit, overload, earth leakage, voltage/frequency abnormality and three-phase unbalance, corresponding standardized protection logic is triggered instantly. The unit accurately identifies fault type, magnitude and duration and outputs trip commands upon reaching setting thresholds to drive circuit breakers to open and isolate faulty circuits. It effectively prevents secondary hazards including equipment burnout, power outages and system oscillation caused by fault expansion. Upon fault detection, fault recording, SOE logging and fault message storage are automatically activated to record complete waveforms and operation timestamps before and after faults, providing accurate support for fault review, hidden risk investigation and setting optimization.
For daily maintenance, the device supports local manual operation, remote circuit breaker control, online parameter setting and logic commissioning. Equipped with built-in self-diagnosis mechanisms, it continuously detects hardware, circuit and communication abnormalities and generates active alarms to comprehensively guarantee safe, stable and efficient operation of conventional medium-voltage feeder systems.
5. Application Scenarios
5.1 Conventional Medium-Voltage Feeders for Municipal Distribution Networks
Widely applied to urban 10 kV/35 kV overhead lines, cable feeders, residential power circuits and municipal public distribution lines. Supported by complete and stable protection and measurement functions, it implements feeder fault protection, condition monitoring and intelligent control to guarantee continuous, stable and safe power supply of municipal distribution networks and satisfy urban basic power distribution operation standards.
5.2 Auxiliary Power Distribution Systems for Industrial and Mining Enterprises
Suitable for medium-voltage incoming/outgoing circuits, bus section circuits and workshop power circuits of metallurgy, chemical, light manufacturing, machinery, building materials and other industrial enterprises. Aiming at industrial characteristics of frequent load fluctuation and complex electromagnetic environment, it relies on outstanding stability and anti-interference capacity to avoid unexpected power outages and equipment faults, ensure continuous production and reduce production losses.
5.3 Protection and Control for Incoming/Outgoing Feeders of Conventional Substations
Applicable to feeder circuits of newly-built, renovated conventional smart substations, switching stations and power rooms. It independently fulfills full functions including circuit protection, measurement, control and data upload, replacing traditional discrete secondary devices, simplifying secondary system architecture and improving automation level of substations.
5.4 Power Distribution Management for General Ring Main Units & Tie Cabinets
Suitable for ring main units, section switches and tie switches of conventional distribution networks. With flexibly adjustable protection logic and interlock control functions, it realizes fault isolation and stable load transfer for ring circuits, enhances reliability of ring distribution systems and meets demands of load regulation and emergency fault handling for conventional distribution networks.
5.5 Standardized Power Operation and Fault Traceability
Supported by complete event logging, fault recording, operation log and operating data storage functions, the unit permanently retains full-dimensional operating data of distribution networks. It satisfies digital traceability requirements including compliance filing, fault review and analysis, hidden risk investigation and system optimization of the power industry, perfectly matching modern intelligent, standardized and regulated power operation management systems.
