Description

Overview

Essential details：REF543KM127AAAA feeder terminal device

Product Description

The REF543KM127AAAA is a feeder terminal device manufactured by ABB, which is mainly used for protection, control, measurement and monitoring of medium voltage networks. This product is no longer active since 2022. The REF543KM127AAAA feeder terminal can be used with different types of switchgear, including single-bus, dual-bus, and dual-machine systems, and supports a variety of network types, such as isolated neutral networks, resonant ground networks, and partially ground networks. It also covers the protection and control of small and medium-sized three-phase asynchronous motors, as well as the protection and control of shunt capacitor banks for reactive power compensation.

REF543KM127AAAA feeder terminal device with a variety of communication interfaces, support for a variety of communication protocols, Such as SPA bus, LON bus, IEC 60870-5-103, IEC 61850 via SPA-ZC 400 adapter, Profibus DPV1 via SPA-ZC 302, DNP 3.0 and Modbus communication, This allows for fast and interference-free data communication with upper-layer devices. It also has 25 binary input and 18 output relays, supports the IEC 61850 protocol, and performs voltage and current measurement via conventional measuring transformers or current sensors and voltage dividers.

REF543KM127AAAA

Product parameter

In addition, the REF543KM127AAAA feeder terminal unit has a fault location function to locate short circuit faults in various networks. It also offers a large number of PLC functions, allowing multiple automation and sequential logic control functions to be integrated in one unit, thereby reducing the need for hard wiring between feeder terminals.

Specific product information, such as product ID, type naming, product description, weight, dimensions, etc., can be found in ABB’s official data sheets. The REF543KM127AAAA feeder terminal unit has a net weight of 7.7 kg and is sold as spare parts

APPLICATION

The REF543KM127AAAA is a feeder terminal produced by ABB that is used in a wide range of applications. Designed for protection, control, measurement and monitoring of medium voltage networks, the device can be used with different types of switchgear, such as single bus, dual bus and dual machine systems, and supports a variety of network types, including isolated neutral networks, resonant ground networks and partially grounded networks.

It is especially suitable for the protection and control of medium-sized three-phase asynchronous motors, as well as the protection and control of shunt capacitor banks for reactive power compensation. The REF543KM127AAAA unit integrates a variety of automation and sequential logic control functions that are critical to substation automation. In addition, it also has a variety of communication interfaces, support such as SPA bus, LON bus, IEC 60870-5-103 and other communication standards, enabling fast and interference-free data communication.

In industrial automation control systems, the REF543KM127AAAA comprehensive protection relay also plays an important role, which is not only used to connect and control cables and wires, but also has a number of notable features, such as compact design, high reliability, and the ability to withstand voltages up to 1000V.

In addition, the REF543KM127AAAA feeder terminal unit module can be used in a variety of applications, including manufacturing, energy, chemical, construction, water treatment, etc., and is ideal for automated control and monitoring systems. It provides a high-performance processor, a variety of communication interfaces and built-in security features to ensure the efficient operation and security of the system

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