Phase Imbalance Monitoring Relay
Monitors three-phase systems for phase imbalance
Detects phase failure even at 95% voltage feedback from the motor
Response delay: 0.5 s
Phase imbalance response threshold adjustable from 5 – 15 %
Phase sequence detection
Supply voltage = voltage being monitored
380 – 415 V 50 Hz
EMR4-A400-1 Circuit Symbol
EMR4-I1-2-A AWA Installation Sheet
02/00 AWA 2430-1862 FD/
View Control Relay Catalog and Engineering Information
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