Internal Area Figure
Application:
Protection & Control of duplex pump, three phase
Main features:
Built in function switch to apply different application
Applied for water supply by liquid level control
Applied for booster by pressure control
Applied for water drainage by liquid level control
Double pump control
Main pump / Standby pump automatically switch against malfunctions
Standby pump participate running if required
Computer main board and module for industrial & civil pump
Auto / Manual switch
Push button calibration
Pump stalled protection
Transient surge protection
Open phase protection
Dry running protection without installing float switch or liquid probe in the well
Prompt for uncompleted parameter calibrating
Pump accumulative running time displaying
Pump last five fault record displaying
LCD displays pump running time displaying
RS485 communication interface
Rapid cycle protection
Pump shaft rust protection
Pump motor winding over temperature protection
Three phase unbalance protection
Phase reversal protection
Main specifications:
Rated input voltage: AC380/Three phase
Rated frequency: 50Hz/60Hz
Rated output power of pump motor: 0.75-4KW
5.5-7.5KW