ABB REF620E_F NBFNAAAANDA1BNN1X Feedline protection measurement and control device
Specific Parameters
Electrical Parameters
Operating Voltage 24-265V AC/DC, supporting stable wide-range inputCurrent Input Rated 5A or 1A, compatible with conventional instrument transformersVoltage Input 100-120V AC, meeting the measurement needs of power distribution systemsMeasurement Accuracy ±1% for current/voltage measurement, accurate data collectionInput Channels 32 input channels, supporting multi-signal accessCommunication Protocols Compatible with IEC 61850 (including HSR/PRP redundancy), Modbus, DNP3, IEC 60870-5-103Communication Interfaces 2 Ethernet ports, 1 RS-485 interface, supporting redundant communicationProtection Features Built-in overcurrent, earth fault, overvoltage, undervoltage, frequency protection and distance protection functionsTrip Time Fault response time <20ms, quickly cutting off faultsPower Consumption Maximum 20W, excellent energy consumption controlCertification Standards Compliant with IEC standards for relevant power protection equipment
Mechanical Parameters
Overall Dimensions 252mm×273mm×40mm, compact structure saving installation spaceWeight Approximately 1.17kg, lightweight design facilitating deploymentMounting Method Panel mounting or 19-inch rack mounting, compatible with standard substation layoutHousing Material Industrial-grade high-strength material with good mechanical protection and insulation performanceConnection Method Plug-in terminals, facilitating wiring and maintenanceProtection Rating IP20, suitable for indoor substation and control cabinet environmentsStatus Indication Equipped with a large-size LCD screen and LED indicators to feedback device operating status in real time
Environmental Parameters
Operating Temperature -25℃ to 55℃, operation without derating over the entire temperature rangeStorage Temperature -40℃ to 85℃, meeting extreme storage and transportation requirementsRelative Humidity 5% to 95% (non-condensing), suitable for high-humidity industrial scenariosVibration Resistance Complies with IEC 61131-2 standard, withstanding conventional operation vibrationsShock Resistance Complies with IEC 61131-2 standard, withstanding 147m/s² acceleration shockEMC Compliance Standard anti-external electromagnetic interference capability, adapting to complex substation electromagnetic environments
Product Performance
Comprehensive protection functions: Covering multiple fault types such as overcurrent and earth fault, with excellent selectivity and sensitivityStrong communication compatibility: Supporting IEC 61850 dual versions and multiple industrial protocols to achieve seamless system integrationReliable redundant design: HSR/PRP redundant communication and uninterrupted power supply design to avoid single point of failureStable measurement accuracy: ±1% measurement accuracy combined with fast sampling to accurately capture changes in power parametersFast response speed: Rapid fault detection and trip response to minimize fault impactFlexible configuration: Supporting custom function modules and remote parameter setting to adapt to different application scenariosLow maintenance cost: Plug-in design + local/remote diagnostic functions simplify fault troubleshooting and operation and maintenanceWide environmental adaptability: Wide temperature operation and strong anti-interference ability to withstand harsh working conditions in substations
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