Oilfilled bushing should have plugs for test of power factor.
充油套管应带有用于进行功率因数试验的接插头。
2
According to National Criteria, the measuring period for gas in oil concentrations of oilfilled transformer is 3 months at least, and besides, the measuring procedure is complicated.
按照国家标准，充油变压器的油中气体浓度至少是3个月测量一次，另外，测量过程十分复杂。
3
He bought an aquarium, installed the wipers in it, filled the tank with a mixture of oil and sawdust to simulate a load on the wiper.