Description
The REF 543 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 543 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 • 25 binary inputs and 18 output relays
Features • Feeder terminal for protection, control,measurement and supervision of mediumvoltage networks • New application areas for power qualitymeasurement, protection, capacitor bankprotection and control and motor protection • Voltage and current measurement via conventional measuring transformers or current and voltage sensors • Fixed man-machine interface including alarge graphic display, or an external displaymodule for flexible switchgear installation • Extended functionality including protection, control, measurement, communication, power quality and conditionmonitoring • Protection functions including e.g. nondirectional and directional overcurrent andearth-fault protection, residual voltage,overvoltage and undervoltage protection,thermal overload protection, CBFP andauto-reclosing • Control functions including local andremote control of switching objects, statusindication of the switching objects andinterlockings 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 powerand energy, etc. • Condition monitoring including circuitbreaker condition monitoring, trip circuitsupervision and internal self-supervision ofthe feeder terminal • Additional functions including synchrocheck, frequency protection, capacitorbank protection and control, measurementof current and voltage harmonics • RTD/analogue module for temperaturemeasurement, current/voltage measurement and mA-outputs • Communication over two communicationinterfaces: one for local communicationwith a PC and the other for remote communication via a substation communicationsystem • Part of the ABB Substation Automationsystem
The REF 541, REF 543 and REF 545 feederterminals are designed to be used for protection, control, measurement and supervision ofmedium voltage networks. They can be usedwith different kinds of switchgear includingsingle busbar, double busbar and duplex systems. The protection functions also supportdifferent types of networks such as isolatedneutral networks, resonant-earthed networksand partially earthed networks. Applicationarea also covers medium-sized three phaseasynchronous motors as well as protectionand control of shunt capacitor banks used forreactive power compensation. In addition to protection, measurement, control and condition monitoring functions, the feeder terminals are provided with a large amount of PLCfunctions allowing several automation andsequence logic functions needed for substation automation to be integrated into one unit. The data communication properties includeSPA bus communication or LON bus communication with higher-level equipment. Further, the LON communication together withthe PLC functions minimizes the need forhardwiring between the feeder terminals.
The company focuses on DCS, PLC, robot, large servo four systems
The main products are various modules/cards, controllers, touch screens, servo drivers Company advantage: Supply imported original products, professional production of spare parts One year warranty, fast delivery time, complete supply !！！ ① 24 hours email response (12 hours); ② For shipment outside Asia, please contact the seller.
【 Disclaimer 】 We sell new products and discontinued products, independent channels to buy such special products. Guizhou Yuanmiao Automation Equipment Co., Ltd. is not an authorized distributor, dealer or representative of the products featured on this website. All product names/product images, trademarks, brands and microlabels used on this Website are the property of their respective owners. Descriptions, depictions or sales of products with such names/images, trademarks, brands and logos are for identification purposes only and do not imply any association or authorization with any rights holder. This article is from the official website of Guizhou Yuanmiao Automation Equipment Co., LTD. Please attach this link:http://www.ymdcs.com/ABB/
