... electricity. Current tansformerLB5-66,LVB-35,LB6-110 used for current ,electric energy measuring, and relay protection in ... oil paper insulated product, and composed by oil tank, active part, porcelain,oil conservator and bellows etc.Purpose:It ... Neutral Earthing Method: non-effectively earthed Rated Voltage66kvHighest Voltage for Equipment72.5kvRated Frequency50 or 60HZRated Transformation Ratio2*25~2 ...