Description
The three-phase voltage relay DigiTOP VP-3F10A is designed to protect industrial and household single-phase and three-phase equipment from over- or under-voltage, voltage loss, phase asymmetry with the function of phase sequence control.
The device analyzes the voltage in a three-phase power system and displays the effective values on digital displays for each phase. The output is switched to the load by electromagnetic relays. The device is powered by the monitored phases. The permissible tripping limits, switch-on delay time and phase sequence control are set by the user.
Technical specifications
Operating mode sync/async
Operating voltage ~50-400V
Operating frequency 50HZ
Nominal current 10A
Maximum current 16A
Upper voltage threshold ~210-270V
Lower voltage threshold ~120-200V
Phase asymmetry limit ~20-99V
Phase sequence control On/Off
Disconnect time at upper threshold 0,02sec
Disconnect time at lower threshold, no more than, 1sec (120-170V), 0,02(<120V)
Voltmeter accuracy <1%