Manufacturing for this product has been discontinued. As a an alternative, please refer to D60, P443 or P445.

ALPS is a multi-function digital protective relay system intended to
provide distance protection for HV or EHV transmission lines. It may
be applied on or adjacent to series compensated lines. It is available 
for single or three phase tripping applications. Typical operating
times are to 1 cycle.

• Distance protection for EHV lines
• Series compensated lines
• High speed tripping (half cycle)

• Four zones of distance protection
• Pilot protection, step distance backup
• Out of step blocking and tripping
• Phase instantaneous overcurrent
• Ground instantaneous overcurrent
• Ground time overcurrent backup
• Over and under voltage functions
• Optional four shot recloser
• 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