3 Phase Power Monitor Relay

The relays are effectively utilized for protection of refrigerating compressor air conditioning and other equipment with.

3 phase power monitor relay. Three phase monitoring relays or protective relays protect motors and equipment from expensive damage due to voltage faults on three phase systems. Macromatic s pmd series three phase monitor relay continuously monitors all voltages of a 460 600v three phase system. Most devices are available with two different terminals. Refer to the table below for more information on the level of protection offered by each product then click one of the series to see details about a specific product type.

Three phase voltage monitoring relays three phase multifunction voltage sensitive relays are designed for protecting three phase voltage equipment from impermissible circuit voltage surges phase breaks phase imbalance phase adherence and phase sequence violation. Eaton s d65 phase monitoring relays protect loads from voltage fault conditions. Phase monitoring relays can help detect phase loss phase reversal and over under voltage in 3 phase circuits. A wide variety of cost effective three phase monitoring relays are available with specialized functionality.

Mainly used for ac 50 60hz rated voltage below 460v industrial three phase 220v 380v 440v 460v and other voltage levels of various fault detection. Abb s cm mps n three phase monitoring relays for rated voltage levels up to 820 v ac and 400 hz offer maximum flexibility and control. They can also help protect against phase unbalance. The model 153 reverse phase relay is designed to continuously monitor phase rotation of 3 phase lines.

The devices provide protection against phase loss phase reversal and phase unbalance due to blown fuses broken wires or worn contacts. This device should be used in applications where proper phase rotation is critical such as fan motors compressors grinders elevators etc. Tvr2000 2 voltage phase sequence multi function protector is also called three phase power monitor phase sequence protector over voltage and undervoltage protector.