The core of this product is made of high-permeability grain-oriented cold-rolled silicon steel sheets with a 45° fully mitered joint, featuring low no-load current and low no-load losses. The conductors are made of high-tensile-strength paper-insulated or enameled copper wire. The layer or disc winding structure provides strong short-circuit resistance, with a capacity range of 30–63,000 kVA, making it suitable for a wide range of applications.

Rated High Voltage (kV): 6, 6.3, 10, 10.5, 11;

Rated Medium Voltage (kV): 0.4;

Impedance Voltage (%): 4, 4.5, 5;

Tapping Range: ±5% or ±2×2.5%.