BE1-11t, Transformer Protection System

Correctly configuring protection with confidence has never been easier than with the BE1-11. The BE1-11t Transformer Protection System is designed with many features to address issues with reliability arising from the complexity of programming. With BESTspace™ files, multiple BESTlogic™Plus preprogrammed logic schemes, and associated application notes, you can be confident that you have the protection you need.

Benefits

IEEE Device Functions
21* 24 25* 27 43 46 47
49RTD* 50 51 51TF 59 60 62
67 79* 81 86 87 87N 101
BF            

* Optional

  • Entering protection settings with confidence is easy with BESTCOMSPlus® software that provides intuitive settings with graphs, built-in error checking, and summary screens.
  • Complex protection is easy to configure and understand with preprogrammed schemes, drag-and-drop logic, user labels, and notes provided by BESTlogic™Plus.
  • The Offline Simulator in BESTlogic™Plus helps identify and troubleshoot the logic without the need for expensive physical hardware.
  • Adaptable coordination for difficult applications is made possible by 24 industry-standard timing curves and five user-defined curves.
  • More efficient maintenance scheduling is possible by using through-fault counter data.
  • Meet your modern communications needs with 10/100Mbit copper or 100Mbit fiber-optic Ethernet with IEC 61850, DNP, or Modbus®.
  • Connection is easy, even when using multiple large wires, with large screw terminals for all terminations.
  • Get the information you need for system analysis with distance-to-fault, oscillography, demand metering, power quality, breaker monitoring, and other data provided by the BE1-11.
  • Increased security and selectivity provided with differential protection.
  • Provides more accurate detection of inrush current on modern transformers by using shared harmonic blocking.
  • Easily navigate settings and metering with the intuitive Human Machine Interface (HMI) menu and large LCD display.
  • Customize displayed information to meet different application needs with user-definable indicators and labels.
  • Direct control of internal logic using Select and Operate buttons available on the front panel.
  • Reliable protection even during abnormal operation events such as high ambient temperature, or blocked cooling with the optional RTD module.
  • Optional RTD module with fully configurable analog outputs can be used to drive analog meters. Easily assigned trip points can be scaled by the user to reflect measured parameters.
  • Up to 14 combined alarm and trip temperature monitoring points are possible using an optional RTD module.
  • Reduce installation costs and improve reliability by mounting an optional RTD module near the point of measurement to minimize cable lengths.
  • UL Class 1, Div 2 rating allows the optional RTD module to be installed in harsh environments.

Bulletins

Technical Resources

Applications