10kV S11-R.L/S13-R.L/S14-R.L Series Three-Dimensional Wound Core Oil-Immersed Power Transformers

10kV S11-R.L/S13-R.L/S14-R.L Series Three-Dimensional Wound Core Oil-Immersed Power Transformers Overview

The S11-R.L/S13-R.L/S14-R.L series three-dimensional wound core oil-immersed transformers feature a compact, symmetrical three-phase core structure for high reliability, low losses, and reduced noise.
Unlike conventional planar core designs, the three core limbs are arranged in an equilateral triangle, ensuring equal and optimized magnetic path lengths. The air-gap-free magnetic circuit and tightly wound silicon steel strips improve magnetic performance and operating efficiency. With lower noise, a compact footprint, reduced material consumption, and excellent energy-saving performance, the series is well suited for modern distribution networks.

Product Features

• Material Saving: Scrap-free processing with 100% material utilization, saving 25%~30% silicon steel and 5%~8% copper.

• Losses and No-Load Current: Joint-free three-phase magnetic circuit, with flux direction fully aligned with the grain orientation of silicon steel, significantly reducing no-load loss and no-load current.

• Three-Phase Balance: Three identical single frames form an equilateral triangular core structure, ensuring equal and shortest magnetic path lengths and balanced phase losses.

• Third Harmonics: Reduced.

• Electromagnetic Field Strength: low.

• Short-Circuit Withstand Capability: High.

• Production Efficiency: 5~6 fewer processes than laminated core production, ensuring higher efficiency and stable quality.

• Size: Compact footprint and attractive appearance.

• Anti-Theft Performance: The wound core is an integral structure; the core cannot be dismantled and the coils cannot be removed.

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