Neo Tele - Tronix Pvt. Ltd. Offers Cascaded Type Direct Current High Voltage Test Set. Neo Tele - Tronix Pvt. Ltd. Supplies test & measuring equipment used in industries, educational laboratories, particularly in places where productive equipment for scientific applications are essential. Cascaded Type Direct Current High Voltage Test Set is suitable for testing electrical insulation of condensers, transformers, motors, insulators, cables etc. Cascaded Type Direct Current High Voltage Test Set is capable of giving continuously variable DC high voltage from zero to maximum rated output voltage. This set has continuously variable from zero to maximum rated output voltage.