the advantage:

    Dry-type insulation: No oil-filling, No gas-filling. Means No leakage, easy maintenance. 
    No porcelain and Dry type means Anti-fire and Explosion Proof.

CT, Current Transformer:

    Inner insulation: Grease coated plastic film
    External insulation: silicone rubber
    Rated primary current:1A-10000A or more
    Partial discharge: ≤5pC
    Dielectric loss factor:≤0.004

Dry type, high voltage
35kV-363kV
Primary current:  from less than 1A, to larger than 16000A
Accuracy class for measuring: 0.1 0.2 0.2S 0.5 0.5S
Accuracy class for protection: P PS PR PX TPX TPY TPZ