ABB 1VCF750071801

Feeder Terminal REF 542plus
Compact protection, control, measurement and supervision terminal Dedicated solution for air or gas insulated MV switchgear systems Targeted for feeder, transformer and motor protection HMI concept based on integrated WEB server technology Support for a wide range of communication protocols.

REF 542plus
is a compact protection,control, mea-surement and supervision terminal for the power distribution system.Distin-guishing features of the terminal are its flexibility and configurability.The same unit can be used as a feeder. transformer or motor protection and control terminal, or as a control terminal alone. The REF 542plus terminal fea-tures a wide range of protection and management functions readily available to satisfy your application's need for protection and control.

One product with many possibilities
The REF 542plus feeder terminal offers all the essential functionality in one single package.The protection functionality required for a given application can be provided in standardized configuration solutions. When necessary, the standard-ized terminals can be further tuned to meet specific requirements. The terminal's inte-grated condition monitoring system enables introduction of preventive maintenance to promote your long-term asset management strategy. The measurement and control functions provide valuable power quality data as well as power system control and management. In addition, the built-in frequency relay functionality makes the terminal suited for load shedding applications.

The functionality of the REF 542plus pro-tection and control terminal makes it the optimum solution for any air or gas insulated switchgear for MV distribution system.

Protection that your network deserves
The REF 542plus incorporates a multi-zone distance protection scheme with integrated impedance based fault location to be used for the protection of meshed distribution network. Any power system fault can be detected within the shortest possible time, usually in less than two periods, and so the faulty network part can be isolated within 70 to 100 ms, depending on the speed of the circuit breaker used.
The built-in fault locator provides the accurate information to enable rapid fault location and proper corrective measures. Consequently, the power system outage times can be kept at a minimum.Further, if the multi-shot auto-reclosure function is applied, most of the transient system faults on overhead lines can be cleared automatically.

Web server functionality
REF 542plus comprises embedded web server functionality for monitoring and control purposes via the Ethernet port on the main module. By using a PC provided with a web browser, the user gains access to the substation unit using web technolo-gy.All information on the HMI and the switchgear overview will be displayed.After the required authorization control of switch-ing devices and switching to change to other parameter set can be performed.

Sophisticated local HMI
REF 542plus is equipped with a sophisti- cated local human machine interface to provide extensive local communication between the operator and the terminal. The large display area is divided into two windows for the display of alpha-numerical data such as settings, measured and re-corded value, alarms, etc. and graphics like single line diagrams of the switchgear lay-out.
The HMI features full support for Unicode characters. The bilingual HMl allows the user to toggle between two languages. One of the languages is always English, the second one is user definable.

Lifecycle Services
By using a dedicated software infrastruc-ture to automatically collect, store and retrieve relevant product data.such as hardware module compositions.software version information and the like,ABB can manage the whole product life-cycle of your REF542 plus terminals, from the order to the disposal of the product. On request, the firmware of the REF 542plus terminals returns information for detection of hard-ware and firmware changes . Due to the collected history record ABB can be pro-vide accurate technical support as well as service and repair.

Innovative technology
REF 542plus feeder terminal is part of the ABB substation automation concept and the RE500 product series. The innovative solutions and the simultaneous multi-port communication with flexible connectivity will cater for your current and future com-munication needs. For example, the new IEC 61850, which is already certified by KEMA,and MODBUS TCP together with the embedded web server communica-tion can be performed simultaneously. The configuration of the communication will be generated automatically by means of a common configuration tool.

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