30kV AC, 50mA Continous, Mains Powered Proof Tester
All the units use the input voltage through a step up transformer to obtain the high AC voltages. In case of DC output the AC is rectified through a suitable rectifier capable of withstanding the high voltages. Some units use a combination of AC and DC that is switched to deliver AC or DC or both. In the case of VLF equipment a pseudo sine wave is produced through a number of switches and resistors.
The outputs are current limited and the unit automatically trips when a set limit is reached. When this occurs the cable is discharged and made safe through a built in discharge resistor. In case the circuit layout does not allow (in case of split units) the automatic discharge of the cable, a suitable manual discharge resistor is supplied The units are portable and simple to operate.
Supply Voltage : 220-240VAC
Supply Current : 8A
Output Voltage : 0-30kV AC
Output Current : 50mA Continuous
Weight : 40kg
Dimensions : 420x280x400mm
Enclosure : Pelican Case IP67
Voltage Level Adjustment : Continuously variable
Meters : Voltage and Current
Trip Level : 50mA
Test Cables : 5m HT lead with high Current clamps
Earth Lead : 5m yellow/green
Mains Lead : 2m 3 core