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REF545  Feeder terminal

REF545  Feeder terminal

The REF 545 feeder terminal can be used with different kinds of switchgear, including single busbar, double busbar and duplex systems.

The protection functions also support different types of networks, such as, isolated neutral networks, resonant-earthed networks and partially earthed networks. The application area also covers medium-sized three phase asynchronous motors as well as protection and control of shunt capacitor banks used for reactive power compensation.

 

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Description

Overview

Essential details：REF545  Feeder terminal

The REF 545 feeder terminal can be used with different kinds of switchgear, including single busbar, double busbar and duplex systems.

The protection functions also support different types of networks, such as, isolated neutral networks, resonant-earthed networks and partially earthed networks. The application area also covers medium-sized three phase asynchronous motors as well as protection and control of shunt capacitor banks used for reactive power compensation. In addition to protection, measurement, control, condition monitoring and general functions, the REF 545 feeder terminals are provided with a large amount of PLC functions, which allow for several automation and sequence logic functions, needed for substation automation, to be integrated into one unit.

The data communication properties include the following communication standards: SPA bus, LON bus, IEC 60870-5-103, IEC 61850 via SPA-ZC 400, Profibus DPV1 via SPA-ZC 302, DNP 3.0 and Modbus communication with higher level equipment. Further, the LON communication together with the PLC functions minimizes the need for hardwiring between the feeder terminals.

Scope

  • Feeder protection relay

Product benefits

  • Protection functions for many different types of power networks
  • Programmable logic functions (PLC)
  • Wide support for different communication protocols
  • Optical communication for fast disturbance-free communication

Product features

  • Voltage and current measurement via conventional measuring transformers or current sensors and voltage dividers
  • Fault locator for short circuits in all kinds of network
  • Support for IEC 61850 protocol through the SPA-ZC 400 adapter
  • 34 binary inputs and 26 output relays

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lf you need to inquire or purchase ,please send the product models to my email or call medirectly .

sunny  He

[Email] sales@xiongbagk.cn

[Mobile] 86-18059884797

[WhatsApp] 86-18059884797

[Skype] sales@saulcontrol.com

REF545  Feeder terminal

• Feeder terminal for protection, control, measurement and supervision of medium voltage networks
• New application areas for power quality measurement, protection, capacitor bank protection and control and motor protection
• Voltage and current measurement via conventional measuring transformers or current and voltage sensors
• Fixed man-machine interface including a large graphic display, or an external display module for flexible switchgear installation
• Extended functionality including protection, control, measurement, communication, power quality and condition monitoring
• Protection functions including e.g. nondirectional and directional overcurrent and earth-fault protection, residual voltage, overvoltage and undervoltage protection, thermal overload protection, CBFP and auto-reclosing
• Control functions including local and remote control of switching objects, status indication of the switching objects and interlockings on bay and station level
• Measurement of phase currents, phase-tophase and phase-to-neutral voltages, residual current and voltage, frequency, power factor, active and reactive power and energy, etc.
• Condition monitoring including circuitbreaker condition monitoring, trip circuit supervision and internal self-supervision of the feeder terminal
• Additional functions including synchrocheck, frequency protection, capacitor bank protection and control, measurement of current and voltage harmonics
• RTD/analogue module for temperature measurement, current/voltage measurement and mA-outputs
• Communication over two communication interfaces: one for local communication with a PC and the other for remote communication via a substation communication system
• Part of the ABB Substation Automation system

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