Multifunction Protective Relays

Posted on June 8, 2011

Basler Electric has introduced the BE1-11m multifunction protective relay for motor protection, control and monitoring of large and medium motors and critical motor processes. This new relay has been engineered for easy configuration and use in applications such as petroleum drilling and refining, pulp and paper mills, water treatment plants, chemical plants and utility power generation facilities.

The BE1-11m is designed to be mounted in existing S1 cutouts to replace many of the existing motor protection relays found in service without modifying or replacing the panel, Basler said. It features ring lug terminals for all relay connections and offers a complete current based thermal motor protection.

The controller also includes unbalanced current biasing, custom voltage dependent curves, RTD biasing, and emergency start override as well as multifunction current, voltage, frequency, power and differential protection elements. The BE1-11m also provides users with oscillography, sequential events recording, starting and running data, breaker- and trip-circuit monitoring data for metering maintenance, and operational analysis.

The BE1-11m can be configured using Basler’s free BESTCOMSPlus software, which simplifies the commissioning process with its graphical interface for setting the relay and configuring a protection and control scheme for a specific application. A USB port or an optional Ethernet port enables local communication between the relay and a PC operating with the BESTCOMSPlus software.