... protection in electricity. Current tansformerLB5-66,LVB-35,LB6-110 used for current ,electric energy measuring, and relay protection in electricity ... outdoor, single phase and oil immersed top-head type current transformer, wihich is used for metering and relay protection of 35kv ... 60HZ system.Service ConditionAmbient temperature: -40~+40°CAltitude: LVB(T)-35(W1,W2,W3) less than1000m LVB(T)-35GY(W1,W2 ...