■  Be sealed up limitedly, the seal components are not exposed to air, with better sealing performance and longerservice life.

■  With large dynamic current and short-time thermal current.

■  With transient protection winding, which can meet the requirements of high-capacity in the electric powersystem and reclosing operation.

■  Oil conservator made by the anti-corrosive aluminium alloy, can eliminate the partial whirlpool heat, and be rustless.

■  Porcelain bushing made by high strength porcelain, and spliced with oil conservator in integral, with compactstructure, beautiful appearance and high mechanical strength.

■  With developed main insulation structure, having better insulation performance and higher reliable technology.

■  Oil draining valve has been applied syringe to take oil sample, which can ensure the precision of transformeroil test.

■  With advanced drying technique of profiling heat conduction, medium heat as well as high degree vacuumdrying adopted, insulation always stays its original state, allof which enable a more reliable performance ofproduct characterized by its small increment which is below 0.05% and low dielectric loss which is below 0.3%under the applied voltage of 10kV.

■  With progressive oiling technique, heating hermetical oiling technology adopted, partial discharge is slight.