AC three phase three wire system with earthed hull as neutral wire
alternating current three phase three wire insulated system
alternating current three phase four wire system with neutral earthed
AC three phase four wire system with neutral earthed
Three-phase Three-wire System
AC three-phase three-wire system
Three Phase Alternating Current
Three-phase Alternating Current
Three-Phase Alternating Current Asynchronous Motor
three-phase alternating current induction motor
Three-phase Alternating Current Machine
three-phase alternating current motor
direct-current three-wire system
AC three phase three wire insulated system
Three-phase three-wire multifunction meter
Three-phase three-wire series hybrid
three-phase three-wire watt-hour meter