Neo Tele - Tronix Pvt. Ltd. Offers Three Phase Relay 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. Three Phase Relay Test Set is applicable for testing distance relays. Three Phase Relay Test Set is suitable to test over current, over voltage, under voltage, earth fault etc. This set can be available in the model no. Of ZNT33.