Analysis Of The Tightness Of The Pressure Equalizing Ball For Epoxy Resin Casing Failure

Pay attention to the tightness of the voltage-equalizing ball to prevent discharge events. The voltage-equalizing ball is installed at the tail of the center conduit, and it can be screwed up and down along the axis of the conduit. The voltage-equalizing ball must be tightened, otherwise, discharge events will occur between epoxy bushing and the voltage-equalizing ball. The voltage-equalizing ball must meet the requirements of electrical strength. The position of the voltage-equalizing ball can adjust the creepage distance between the tail and the winding epoxy resin bushing and the insulation distance of the oil tank wall, and epoxy resin cast bushing improve the radial potential distribution. If the adjustment is improper, discharge will occur on the spherical surface, causing the dielectric epoxy bushing manufacturer to break down, which is very harmful to the electrical performance of epoxy bushing for transformer; the condition and quality of the oil valve and oil plug should be good, and there should be no rust; the quality of the rubber pad should also be good.