The phase balance, sequence and voltage protector trip relay, is designed to monitor a three-phase supply for phase imbalance, low or missing phases or incorrect phase sequence and to trip a relay if it detects any anomaly. Two versions are available to suit either three-phase three-wire (PSF/G3) or three-phase four-wire (PSF/G4) systems.
Basic Parameters
- Available with three voltage ranges 100-120V, 173-240V and 380-480V (Un)
- Adjustable nominal voltage range
- Adjustable trip delay 0.5-10s
- Adjustable low voltage trip level 50-85%
- Adjustable phase imbalance trip level 5-15%
- Power on LED (green)
- Fixed differential (hysteresis) 1%
