Oil transformer bushing 25 - 500 kV | OTAA

The OTTA bushing by Trench is an oil impregnated paper condenser bushing which are engineered according to IEEE C57.19.01. It contains a maximum voltage of 25 kV to 500 kV which is the common rating for most bushing equipment. Some of its advantages are, it has a free top terminal having a multi-spring contact for regulation and an epoxy insulator with embedded end shield. Plus, its cantilever withstand capability is increased due to flange that are porcelain cemented. Also, the oil side epoxy insulator enables the unit to be superior in impact resistance and size reduction. For high current operation, it has a draw lead brushing made to be compatible for standard cable application and split conductor. In addition, based on IEEE C57.19.01 it has a standard creepage level of about 44 mm/kV.