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

• 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

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

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