Silicon steel core for dry-type transformers

Silicon steel core for dry-type transformers

Silicon steel sheets are an indispensable soft magnetic alloy in the power, electronics, and military industries, and are also the most widely used functional metallic material, primarily used as the core of various motors, generators, and transformers. my country began producing hot-rolled low-silicon steel sheets (Si 1~2%) in 1953, hot-rolled high-silicon steel sheets (Si 3.0~4.5%) in 1955, and cold-rolled silicon steel sheets in 1955. Grain-oriented thin silicon steel strips were rolled in 1962. With industrial development, my country’s electrical steel production capacity exceeded 10 million tons for several consecutive years, making it a major producer and consumer of electrical steel in the world.

Silicon steel core
Silicon steel sheets are an indispensable soft magnetic alloy in the power, electronics, and military industries, and are also the most widely used functional metallic material, primarily used as the core of various motors, generators, and transformers. my country began producing hot-rolled low-silicon steel sheets (Si 1-2%) in 1953, hot-rolled high-silicon steel sheets (Si 3.0-4.5%) in 1955, and cold-rolled silicon steel sheets in 1955. Grain-oriented thin silicon steel strips were rolled in 1962. With industrial development, my country’s electrical steel production capacity exceeded 10 million tons for several consecutive years, making it a major producer and consumer of electrical steel globally.

Structural Characteristics

● Diversified product range, mainly including main transformer cores, dry-type transformer cores, oil-immersed distribution transformer cores, new energy transformer cores, and three-dimensional cores.

● High-magnetic-induction grain-oriented silicon steel (HiB) is used, with grades including 18SQGD065, 20SQGD070, 20SQGD075, 23SQGD080, 23SQGD085, 27SQGD090, 27SQGD095, 27QG100, 27QG110, and 27QG120 to meet diverse customer needs.

● The clamps are made of high-strength steel, CNC bent, resulting in high mechanical strength, more accurate dimensions and positioning, and a smooth and aesthetically pleasing appearance.

● The core insulation uses PET (F-grade) insulation material, ensuring the transformer will not discharge, leak, or break down.

● The silicon steel sheet core boasts superior performance, featuring low loss, low noise, low no-load current, high mechanical strength, strong short-circuit resistance, low partial discharge, good insulation performance, good thermal stability, excellent process coefficient, and an attractive appearance.

● Silicon steel sheets are processed using internationally advanced fully automated intelligent production lines, ensuring high processing precision, minimal burrs, excellent flatness, and high efficiency.

● A stable and skilled workforce effectively guarantees capacity and quality.

● Collaboration with relevant enterprises and research institutions results in products with advantages such as low process coefficients and low noise.

● Assistance is provided to customers in optimizing designs and improving transformer core performance.