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LPS Line Protection System - Legacy

LPS Line Protection System

Manufacturing for this product has been discontinued. As a an alternative, please refer to D60, P443.

The LPS is a multi-function digital protective relay system intended
to provide distance protection for transmission lines. It may be
also applied where system backup is required. It is available for
single or three phase tripping applications. Typical operating
times are within 1 cycle.

  • Distance protection for transmission lines
  • High speed tripping

  • Protection and Control
  • Four zones of distance protection
  • Pilot protection, step distance backup
  • Out of step blocking
  • Phase instantaneous overcurrent
  • Ground instantaneous overcurrent
  • Ground time overcurrent backup
  • Over and under voltage functions
  • Configurable inputs and outputs

  • Monitoring and Metering
  • Integrated metering
  • Fault location
  • Event reporting of last 100 events
  • Fault reports
  • High resolution oscillography

  • User Interface
  • LCD display and keypad
  • RS232 and RS485 serial ports
  • ASCII or GE protocols