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HOME ⊙ ABB ⊙ ABB REF 541, REF 543, and REF 545 feeder terminals
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ABB REF 541, REF 543, and REF 545 feeder terminals

来源: | 作者:FAN | 发布时间 :2025-07-08 | 412 次浏览: | Share:

Control function: Supports multiple operating state switches, including running, testing, setting state switches, as well as local and remote state switches, making it convenient for operators to flexibly control equipment according to actual needs. Equipped with closing, opening and emergency opening functions, ensuring effective control of the equipment in different situations. Various interlocking functions are set up in the software, and the interlocking functions implemented through software settings can effectively prevent misoperation and ensure the safety of equipment and personnel.

Measurement function: It can accurately measure various electrical parameters, including three-phase current, zero sequence current, maximum demand for three-phase current, three-phase/line voltage, zero sequence voltage, active/reactive power, active/reactive electricity degree, power factor, frequency, etc. The measured values can be displayed on the LCD screen as numbers and LED bar charts, visually presenting the system's operating status and providing accurate data reference for operators.


Communication function: Supports multiple communication protocols such as RS485, Modbus, IEC 61850, DNP3.0, etc., and can exchange data with different devices and systems. Adopting fiber optic connection, it has the characteristics of simple wiring, strong anti-interference ability, and high reliability, which can achieve real-time information processing and perfect system management, facilitate networking, and meet communication needs in different scenarios.

Monitoring and diagnostic functions: capable of effectively monitoring primary equipment, such as monitoring spring charging time (when applicable) and trip coils, to promptly identify potential equipment issues. Equipped with a self diagnostic program that can continuously check the status of hardware and software modules. The binary input and output module is equipped with watchdog contacts, which are triggered in the event of a fault or power outage. The analog input channel can be selected for monitoring, detecting disconnection from the instrument transformer or sensor connection, and triggering an alarm.

Power quality function: It can monitor and analyze the power quality of the power system, provide data support for optimizing power quality, and ensure that the power system provides high-quality power for various equipment.

PLC function: Standardize the wiring of switchgear, simplify production management, reduce the types of spare parts, and facilitate on-site management and operation maintenance. Through flexible software development, engineering design can be simplified, design cycles can be shortened, on-site debugging efficiency can be improved, and it is easy to change the function of the switchgear or adapt to different load properties in the future.

ABB 馈线终端 REF541 数字继电器 - 启明自动化

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