Oil-Immersed Low Loss Power Transformer

Oil-Immersed Low Loss Power Transformer

Introduction

An Oil-immersed Transformer is a transformer that uses oil cooling to reduce the temperature of the transformer. Unlike dry-type transformers, the body of an oil-immersed transformer is installed in a welded steel tank filled with insulating oil. When the oil-immersed transformer is in operation, the heat of the coil and core is first converted into insulating oil and then into cooling medium. It can be divided into immersed natural cooling transformers and immersed forced air cooling transformers according to capacity.

Oil-immersed low loss Power Transformers are designed to meet the growing demands for energy efficiency and environmental sustainability in power distribution systems. These transformers offer significant improvements in energy efficiency, reduced operational costs, and enhanced reliability, making them ideal for modern power systems.

Key Features

• Reduced No-Load Losses: The S13 series achieves a 30% reduction in no-load losses compared to the S11 series, contributing to energy conservation and reduced operational costs.
• Lower No-Load Current: The no-load current is reduced by 80%, further enhancing energy efficiency and reducing operational costs.
• High-Quality Core Materials: The core is made of high-quality cold-rolled grain-oriented silicon steel sheets, which are known for their superior magnetic properties. This material choice results in lower core losses and enhanced energy efficiency.
• Innovative Joint Structure: The transformers feature a multi-step progressive full-lap joint structure. This design not only strengthens the core but also optimizes the magnetic flux path, leading to improved performance and durability.
• Quieter Operation: The S13 series features a design that reduces noise levels by 5-10 dB, making them suitable for urban and residential areas where noise pollution is a concern.
• Robust Design: The S13 series is designed to withstand harsh environmental conditions, ensuring reliable outdoor use. The fully sealed design prevents contact with the air, ensuring long-term reliability even in humid environments.
• Pressure Relief Valve: The S13 series includes a pressure relief valve for secure operation, ensuring safety and reliability in various operating conditions.

Technical Specifications

• Innovative Lamination: The core is made of high-quality cold-rolled grain-oriented silicon steel sheets, with a 45° full oblique shearing on the transverse shear line. The core column and yoke joint are in a five-step laminated structure, improving the magnetic field distribution and reducing energy consumption.
• Compact Foil Winding: The winding is made of copper foil, ensuring uniform distribution of operating current and improving the balance of the ampoule. The axial short-circuit force of the transformer is small, simplifying the winding pressing device and improving the short-circuit resistance of the transformer.
• Corrugated and Sealed: The fuel tank uses a corrugated design, made of high-quality cold-rolled steel sheet. The corrugated sheet is formed by a transformer corrugated oil tank automatic production line and is protected by argon gas. This design has the advantages of strong pressure, good elastic deformation, high heat dissipation coefficient, and no leakage during operation.

10kV Oil Immersed Distribution Transformer energy efficiency grade table