Origin	China
Brand Name	Amtech

Our Current Transformers are applied to 110kV and 220kV A.C. high-voltage line for electrical measuring and protection, which have following features:

•Application of one-time pressure forming silicon rubber housing ensures the unique and excellent anti-aging, contamination-proof, electro erosion-proof and electric arc-proof capacity. These products are of small size, lightweight and whole sealing construction.

•High mechanical strength, excellent anti-seismic capacity.

•Filling of SF₆ gas, SF₆ gas has the stability of insulation, makes the reliable operation of the transformer. There is no doubt in insulation aging. The SF₆ gas current transformers meet the requirements of no-oil set up by Electrical Departments.  

•Easy to maintain. This product is equipped with SF₆ gas pressure meter, whether this transformer normally operates or not, it can be judged easily by indication of the pressure meter. In addition, SF₆ gas density relay is installed in this product, rated gaseous pressure of this product is 0.4MPa. When gaseous pressure comes down to 0.35MPa, the relay will give off a signal of supplementing gas. Under normal operating condition, annual leakage of gas is less than 1%, so it shows that it will take ten years to decline to 0.35MPa from rated pressure 0.4MPa, which means this product is free of maintaining in ten years.