Current tansformer LB5-66,LVB-35,LB6-110 used for current ,electric energy measuring, relay protection in electricity.

Current tansformerLB5-66,LVB-35,LB6-110 used for current ,electric energy measuring, and relay protection in  electricity system. it is oil paper insulated product, and composed by oil tank, active part, porcelain,oil conservator and bellows etc.

Purpose:

It is our outdoor, single phase and oil immersed top-head type current transformer, wihich is used for metering and relay protection of 35kv, 50 or 60HZ system.

Service Condition

Ambient temperature: -40~+40°C

Altitude: LVB(T)-35(W1,W2,W3) less than1000m

               LVB(T)-35GY(W1,W2,W3) less than 1000m

Environment Pollution Level: II, III, IV

System Condition

System Rated Voltage: 66kv

System Highest Voltage: 72.5kv

System Rated Frequency: 50Hz or 60 Hz

System Neutral Earthing Method: non-effectively earthed

Rated Voltage	66kv
Highest Voltage for Equipment	72.5kv
Rated Frequency	50 or 60HZ
Rated Transformation Ratio	2*25~2*1000/5 or 1A
Number of Secondary Windings	1~5
Accuracy of Measuring Winding	0.2,0.2S,0.5,0.5S
Accuracy of Protection Winding	5P or 10P
Rated Secondary Output	20~50VA
Accuracy Limite Factors	15,20,25,30
Instrument Security Factor	<=5 or 10