Oload,DPP3- 3phase Pump protection relay

DPP3 (three phase) – Three phase pump monitoring relay. *Monitors 1phase current(Direct or with 5CT) Unit is calibrated by pressing the SET button during normal load conditions. Recalibrate:-Press the SET button (until Power LED stops flashing) whilst applying power. Tolerance can be extended by continued press of SET button. Start-up delay provided. Fault reset is done by pressing SET button (Latched fault condition). 3 resets per 15minutes. Monitored conditions: Over-voltage 15% Under-voltage 15% Over-current – After 3 trips with 10 second pauses the unit goes into a tripped state only reset by cycling power. Under-current - By monitoring V/I phase-angle lag. Restarts AFTER the set recovery delay time. Phase reversal Override ON Pump running Un-calibrated state