High Voltage Tester

Electric Strength of an Insulating Material is defined as the voltage at which breakdown occurs under the prescribed conditions of test, divided by the distance between the electrodes to which the voltage is applied.

The PROLIFIC High Voltage Test Apparatus is designed to give an adjustable A. C. high voltage supply. The voltage is provided through an isolated secondary winding of a high voltage transformer. The primary of the transformer is fed a variable voltage through a variac. The voltmeter is directly calibrated to give the output voltage of the high voltage coil at no load.

The high voltage circuit has a tripping system, which automatically trips off the supply, if the current in this circuit exceeds the set value of the tripping current. The tripping current can be set at any desired value within the range of the equipment. A digital mili-ammeter and a digital voltmeter are provided to measure the tripping current and the applied voltage respectively.