REF545 馈线终端 用于保护、控制、测量和监视中压电网

保护功能同样支持各种类型电网，例如中性点不接地网络、消弧线圈接地网络和部分接地网络。其应用范围还覆盖中型三相异步电机及无功功率补偿并联电容器组的保护和控制。除保护、测量、控制、状态监视和常规功能外，REF541 馈线终端还提供了大量的PLC功能，这就允许了变电站自动化所需的多种自动化和顺序逻辑控制功能集成在一个装置内。

数据通信支持下列通信标准：SPA 总线规约、LON 总线规约、IEC 60870-5-103 规约、通过 SPA-ZC 400 支持的 IEC 61850、通过SPA-ZC 302支持 Profitbus DPV1 协议、DNP 3.0 和上层设备的 Modbus 通信规约。另外，LON 通信规约与 PLC 功能的结合，降低了馈线终端之间的硬接线的需求。

主要优势

大量可选择的保护功能

PLC 可编程功能具有较高的灵活性可满足多种应用

34 个开关量输入和 25 个出口继电器

灵活连接满足所有通信需求

REF545 馈线终端 用于保护、控制、测量和监视中压电网

The protection function also supports various types of power grids, such as neutral ungrounded networks, arc suppression coil grounded networks and partially grounded networks. Its application scope also covers the protection and control of medium-sized three-phase asynchronous motors and reactive power compensation shunt capacitor banks. In addition to protection, measurement, control, condition monitoring and general functions, the REF541 feeder terminal offers a large number of PLC functions, which allows multiple automation and sequential logic control functions required for substation automation to be integrated in a single unit.

Data communication supports the following communication standards: SPA bus protocol, LON bus protocol, IEC 60870-5-103 protocol, IEC 61850 supported by SPA-ZC 400, Profitbus DPV1 protocol supported by SPA-ZC 302, DNP 3.0 and Modbus for upper devices Communication protocol. In addition, the LON communication protocol combined with PLC functionality reduces the need for hard wiring between feeder terminals.

Major advantage

A large selection of protection features

PLC programmable features provide high flexibility to meet a wide range of applications

34 switching inputs and 25 outlet relays

Flexible connectivity for all communication needs