... our outdoor, single phase and oil immersed top-head type current transformer, wihich is used for metering and relay protection of ... -40~+40°CAltitude: LVB(T)-35(W1,W2,W3) less than1000m LVB(T)-35GY(W1,W2,W3) less than 1000mEnvironment Pollution ... 1ANumber of Secondary Windings1~5Accuracy of Measuring Winding0.2,0.2S,0.5,0.5SAccuracy of Protection Winding5P or 10PRated Secondary Output20~50VAAccuracy ...