Product Description

S13 series fully sealed oil-immersed distribution transformers are mainstream high-efficiency energy-saving power distribution equipment. Adopting advanced step-lap core technology and high-purity copper windings, it features ultra-low no-load loss, low noise, strong short-circuit resistance and maintenance-free operation. With higher cost performance than S11 and S9 series, this IEC-standard transformer is widely used for urban & rural power grids, industrial parks, commercial buildings and new energy distribution projects worldwide.

Core Features

Excellent Energy-saving Performance: Ultra-low no-load and load loss, energy-saving efficiency significantly improved compared with S9/S11 series, effectively reducing long-term grid operating costs.

Fully Sealed & Maintenance-free: Integral welded anti-leakage corrugated tank and vacuum oil filling process, no need for regular oil replacement and daily maintenance, low operation cost.

Strong Short-circuit Resistance: Optimized winding layout and tight fastening structure, effectively prevents winding deformation under short-circuit impact, ensuring safe and stable full-load operation.​​​​​​​

Low Operating Noise: Precision core lamination and structural damping design, low vibration and low noise operation, meeting environmental protection requirements for residential and public areas.​​​​​​​

Flexible Voltage Regulation: Standard ±2×2.5% off-circuit manual tap changer, flexible on-site voltage adjustment to adapt to grid voltage fluctuations and stabilize power supply quality.​​​​​​​

Wide Environmental Adaptability: Waterproof, dust-proof, anti-corrosion and moisture-proof design, suitable for long-term indoor and outdoor operation in high temperature, high humidity and dusty environments.​​​​​​​

High Cost Performance: Mature technology, stable quality and reasonable price, ideal for large-scale conventional power distribution engineering projects.

Details Table