The technical data 
1．1 the type current transformer is a kind of steel tank oil-immersed type of current and electric energy measurement and relaying protection to system with the frequency of 50Hz．
1．2 The current transformer carries out the long operation under the conditions for 20％ of rated current，it is used in the fields of altitude not exceed 4000m，and max．change of ambient temperature not exceed-25℃+40℃
Construction
3．1 The transformer is made of single-phase oil-immersed type self-cooling type，which can be used indoors or outdoors．There are insulation and oil for cool down the transformer insalled inside the transformer．It adclpts vacuum oil-filter and vacuum oiling arts．
3．2 The distance between class 10KV fuel and cover iS ablut 15mm，there is an oiling valve installed above the cover，(there is an air hole on the valve)with water-proof and snow-proof cover．
3．3 There is an oil tank inside the class 35KV tube，The diaphragm inside the oil tank can make the oil be seperated from the air．which decreasea the oil oxidizing speed．
3．4 Transformer thermal stability 187．5 times．
3．5 The product has four models：singe-ration single secondary，single ratio double ratio single secondary and double ration double secondary．CT for measurement，it is class O.2，CT for continuous protection control，it is class 0．2，0．5 and 1．3(D)，etc．