Description
ABB REM543 REM543BG217AAAA Maschinen Terminal Relais
REF620 NBFNAANNNDA1BBN1XF is a feeder protection and measurement device in the ABB Relion 620 series. It is a dedicated feeder IED with configuration B (sensor type, non-traditional CT/PT), aimed at public substations and industrial distribution systems, integrating protection, control, measurement, and monitoring.
ABB REM543 REM543BG217AAAA Maschinen Terminal Relais
Core positioning: Dedicated feeder protection device, suitable for radial, ring, and mesh distribution networks, supporting various grid structures such as neutral point ungrounded, resistance grounded, impedance grounded, etc.
In terms of protection functions, it provides feeder overcurrent protection (directional/non directional, multi-stage configuration), ground fault protection (including multi frequency admittance grounding, suitable for selective protection of high impedance grounded power grids), thermal overload protection, voltage protection (overvoltage/low voltage/zero sequence overvoltage/positive negative sequence overvoltage), frequency protection (overclocking/low frequency/frequency change rate), phase failure protection, sensitive grounding, and instantaneous intermittent grounding detection. Optional arc protection function package, monitoring arc faults in areas such as switchgear cable rooms and busbar rooms, with millisecond level action. Support automatic reclosing function.
In terms of measurement and monitoring, we provide high-precision real-time measurements of current, voltage, active and reactive power, power factor, and electrical energy, and have the ability to monitor and diagnose equipment status in real-time. Built in circuit breaker status monitoring, capable of outputting binary status information such as protection action and tripping, equipped with a universal timer for logic control.
In terms of communication, based on the IEC 61850 standard design, supporting version 1/2, including HSR, PRP redundancy, and GOOSE messages, compatible with the IEC 61850-9-2 process bus. Simultaneously, it natively supports DNP3, IEC 60870-5-103, Modbus RTU/TCP. Provide delay free redundant Ethernet through PRP or HSR protocols, or provide ring network self-healing RSTP communication to eliminate single point failures. Optional RIO600 remote I/O expansion I/O quantity.
In terms of configuration and hardware, PCM600 software configuration supports signal matrix modification and multi-layer logic creation. Adopting a pull-out plug-in design, standard rail installation, working temperature range of -20 ℃ to+70 ℃, protection level of IP20, matched with a graphical LCD panel that supports local viewing and modification of settings, and panel damage does not affect protection function. There are two configurations to choose from: single bus and double bus, supporting a large number of manual and electric isolation switches and grounding switches.
Application industry:
The power utility industry includes substations and distribution networks of power supply companies in various provinces, cities, and counties under the State Grid and Southern Power Grid; The petroleum and petrochemical industry includes the distribution systems of oil fields, refineries, and gas stations of PetroChina, Sinopec, and CNOOC; Mining and metallurgical industry, non-ferrous metal mines, black metal mines, and steel smelting enterprises; Cement and building materials industry, large cement groups such as Conch and China Resources; Paper industry, pulp mill, paper mill power distribution system; Low voltage distribution in the food and beverage industry, dairy products, beer, and beverage factories; The rail transit industry includes traction substations and distribution stations for subways and light rails; Data center industry, protection of medium voltage incoming and outgoing lines in large data centers; Commercial and municipal industries, large commercial complexes, hospitals, airports, water distribution systems; Protection of grid connected feeders for wind farms and photovoltaic power plants in the renewable energy industry.
Usage scenario:
1、 Public substation feeder protection, as the main or backup protection for 10kV to 35kV feeders, cooperates with the substation comprehensive automation system to achieve remote signaling, telemetry and remote control; 2、 Ring network distribution network protection, utilizing inter station communication function to accurately determine the direction of faults and selectively trip in the ring network; 3、 Radiation type distribution network protection, including distributed photovoltaic access scenarios, directional protection can accurately distinguish fault directions and adapt to bidirectional power flow; 4、 Metal armored switchgear arc protection, tripping in milliseconds after arc detection to prevent arc explosion; 5、 Industrial production line feeder protection, overcurrent and grounding protection for high-power equipment such as mine crushers, cement mills, paper machines, etc; 6、 The backup automatic switching coordination of dual or multiple power supply systems is achieved through GOOSE messages to achieve rapid interlocking between equipment within the station; 7、 The grounding protection of high impedance grounded power grids and multi frequency admittance grounding can achieve high-sensitivity selective grounding fault detection in ungrounded or resistance grounded systems.
One sentence summary: REF620 NBFNAANNNDA1BBN1XF is a sensor type dedicated measurement and control device from ABB for feeder line protection. It focuses on directional overcurrent, multi frequency admittance grounding, and arc protection, supporting IEC 61850 redundant communication and DNP3/Modbus multi protocol. It is widely used in industries such as power utilities, petroleum and petrochemical, mining and metallurgy, cement and building materials, papermaking, food and beverage, rail transit, data centers, renewable energy, etc., covering core scenarios such as substation feeder line protection, ring network distribution network protection, switchgear arc protection, industrial production line protection, and distributed energy grid connection.
