1Senior Technical Expert, Yash Highvoltage Ltd., Distinguished Member, CIGRE
Online Published on 09 February, 2023.
Winding termination interfaces with bushings shall be designed to allow for repeatable and safe connection under site conditions to ensure the integrity of the transformer in service.
The power transformer has been specified for various types of bushings. Viz. OIP, RIP, RIS & conventional oil communicating. Before availability of Resin Impregnated technology in India, all the HV/IV/TV side bushings used were OIP condenser type. The LV sides (33 kV & below) are terminated through Oil communicating type of bushings.