PMP120

The PMP series 3-phase Monitor Relay continuously monitor all voltages of a 3-phase system. It is used to protect motors and equipment from expensive damage due to phase loss, phase reversal, phase unbalance, undervoltage and overvoltage faults as well as rapid cycling. This relay detects single phasing and unbalanced voltages regardless of regenerative voltages. It incorporates a microprocessor-based design capable of advanced signal processing including True RMS voltage measurement. Innovative analogue-to-digital sensing circuitry allows for true full-wave monitoring of all 3-phase, delivering the highest level of protection possible. True RMS voltage measurement ensures accurate sensing in most generator and other applications with non-sinusoidal wave forms, eliminating nuisance tripping. Full wave monitoring provides a more accurate method to measure the voltages, regardless of load type or wave shape, resulting in improved protection across more applications.

• Retains fault indication and continues monitoring all voltages even with a lost phase
• Ultimate 3-phase protection with a variety of user-selectable and adjustable settings
• Full fault indication top of unit for easy troubleshooting
• Manual reset option works with external switch to reset the relay from outside the enclosure
• Compact plug-in case utilizing industry-standard 8-pin octal socket

Applications

Industrial, Motor Drive & Control, Signal Processing, Sensing & Instrumentation