REF543KM129BAAA ABB Mechanical terminal

This text describes some of the features and functions of the REF 543 feeder terminal. Here is an interpretation of the text:

The REF 543 feeder terminal can be used in combination with a variety of switching devices, including single-bus, dual-bus

and dual-machine systems. This means it has a wide range of applications and flexibility that can be adapted to different system configurations.

The feeder terminal provides protection and can support various types of networks, including neutral ungrounded networks, arc

suppression coil grounded networks and partially grounded networks. The application range of this protection function also covers the

protection and control of medium-sized three-phase asynchronous motors and reactive power compensation shunt capacitor banks. This

shows that the REF 543 feeder terminal not only has basic protection functions, but also can be applied to more complex systems and devices.

In addition to protection, measurement, control and general functions, the REF 543 feeder terminal offers a large number of PLC functions.

REM545M

The PLC capability enables multiple automation and sequential logic control functions required for substation automation to be integrated in

one unit. This further enhances the flexibility and application range of the device.

In terms of data communication, REF 543 feeder terminal supports a variety of communication standards, including SPA bus protocol, LON

bus protocol, IEC60870-5-103 protocol, etc. In addition, it supports IEC61850 supported by SPA-ZC400 and ProfitbusDPV1 protocol and

DNP3.0 supported by SPA-ZC302. The support of these communication protocols enables the feeder terminal to exchange information effectively with different devices and systems.

In terms of key advantages, the REF 543 feeder terminal has a large number of selectable protection functions, which provides greater

flexibility to meet different application requirements. At the same time, its PLC programmable function makes it possible to customize the

configuration according to different application scenarios. In addition, it has 25 switching inputs and 18 outlet relays, which provides more

input and output options to adapt to different application needs. Finally, its flexible connection function can meet all communication needs,

so that the feeder terminal can carry out stable and efficient information exchange with other devices.