ABB’s REF620 NBFNAANNNDA1BBN1XF is a feeder protection device.The following is a detailed introduction to it:
1.Basic information
Brand:ABB(ABB Group)
Model:REF620 NBFNAANNNDA1BBN1XF
Type:Feeder protection device/relay
2.Technical features and functions
Fault detection:It can monitor the current,voltage and other parameters on the feeder in real time,and judge whether there is a fault according to the preset threshold.
Quick cut-off:Once a fault is detected,the feeder protection device will quickly cut off the power supply in the fault area to prevent the fault from expanding and damaging the equipment.
Selective protection:It has selective protection function,that is,it only cuts off the power supply in the fault area without affecting other normal operating areas.
Communication function:It supports communication with other devices or systems for remote monitoring,control and diagnosis.
Multiple protection modes:It supports multiple protection modes,such as overcurrent protection,undervoltage protection,ground fault protection,etc.,to meet different protection needs.
Automatic reclosing:In some cases,feeder protection devices may have an automatic reclosing function,which automatically attempts to reclose the disconnected switch after a fault occurs to restore power supply.
3.Application areas
Power system protection:Commonly used in power systems to monitor and protect transmission lines,transformers and other equipment in the power system from faults such as overcurrent,short circuit,and overvoltage.
Grid automation:Plays a key role in grid automation,by monitoring the status of the power system in real time and responding quickly to abnormal situations to ensure the stable operation of the power system.
Energy distribution:Can be applied to various energy distribution systems,including urban energy networks,industrial park power grids,etc.,to provide protection and control of various parts of the power grid.
Industrial automation:In the industrial field,it can be used to protect key electrical equipment and ensure the reliability and safety of production systems.
Renewable energy:In the field of renewable energy,such as wind and solar power plants,such protection devices can be used to ensure the stability and safety of electricity when it is transmitted from renewable energy devices to the power grid.
4.Product parameters(partial)
Power supply voltage:220V(some parameters may vary depending on the specific product)
Operating voltage:24V
Rated current:5A
Operating temperature:usually in the range of-40 to 100℃or 0 to 85℃(depending on the product version and application environment)
Alarm type:light alarm
Operation mode:remote control
Memory expansion capacity:128MB(or similar capacity)
System memory:8MB
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The company mainly imports PLC modules, programmable controllers, servo control systems and DCS spare parts, such as: ABB, AB (Rockwell), GE (General Electric), Bentley, Honeywell, Emerson, Motorola, Invensys, Westinghouse, etc. The company has established close cooperative relations with many world-renowned PLC and DCS product maintenance service providers, and can directly purchase from abroad, providing equipment and spare parts from different countries and manufacturers.
We supply directly from abroad, without middlemen, reducing the cost of use.
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Professionally provide: PLC programmable control system, distributed control system (DCS), safety instrument system (SIS), ESD system, vibration monitoring system, turbine compressor control system (CCS) and other PLC modules, various industrial control systems, system modules, CPU, IO module, DO module, AI module, DI module, network communication module, Ethernet module, motion controller, analog input module, analog output module, switch input module, switch output module, module redundancy, power supply module, relay output unit, relay input unit, processing unit.
Products are widely used in: electricity, petroleum, mine hoisting, ports, heating, gas, water supply, sewage treatment, metallurgy, papermaking, textile, chemical industry, water conservancy and other modern industrial fields!
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