Three-Phase Oil-Immersed Silicon Steel Laminated Core Transformer

The laminated core transformer adopts high magnetic permeability and low-loss silicon steel sheets, with a stepped multi-stage joint structure. The core tensioning and clamping use anti-loosening structures. The cross-section of the transformer core is oblong, which can reduce the height of the core yoke, thereby lowering the overall core height of the transformer, saving silicon steel sheets, oil tanks and other steel materials, as well as transformer oil consumption.

The oil tank is a corrugated rectangular tank. And the corrugated sheets are automatically welded by robots, ensuring full, smooth, flat and uniformly thick weld seams to prevent oil leakage. The elasticity of the corrugated sheets can compensate for the volume change of transformer oil caused by temperature variations.

At GaoJing, we focus on delivering high-quality transformer solutions tailored to diverse application needs. From capacity selection to voltage ratings and installation environments, each Laminated Core Transformer can be customized to meet specific project requirements.

Our manufacturing process integrates advanced automation and strict quality control systems, ensuring that every transformer meets international standards for safety, durability, and efficiency.

①Capacity: 30kVA-50000kVA;

②Voltage Level: 10kV-110kV ;

③Core Material: Ordinary silicon steel sheets or high-grade silicon steel sheets ;

④Special Customization: Enhanced short-circuit resistance, low-temperature environment adaptation .

Why Choose a Laminated Core Transformer?

A Laminated Core Transformer is engineered for reliable, long-term performance in demanding power distribution environments. By utilizing precision-stacked silicon steel laminations, this transformer design significantly reduces eddy current losses and improves overall magnetic efficiency. Compared with conventional core structures, laminated cores deliver enhanced energy savings and stable voltage regulation, making them a preferred solution for modern grid systems.

As part of the broader Oil-Immersed Transformer category, this type of transformer benefits from excellent insulation and cooling performance. The insulating oil not only dissipates heat effectively but also provides additional dielectric strength, ensuring safe operation under continuous and heavy-duty conditions.

Performance and Efficiency Benefits

The Laminated Core Transformer is specifically designed to meet the increasing demand for energy-efficient power solutions. Its low-loss characteristics help reduce operating costs over time, while the stable magnetic performance ensures consistent output even under fluctuating load conditions.

In addition, the corrugated tank structure works in tandem with the internal core design to maintain optimal thermal balance. This not only enhances performance but also contributes to lower lifecycle costs, making it a cost-effective choice for utilities and industrial users alike.

Typical Applications and Industry Use Cases

Thanks to its robust structure and high efficiency, the Laminated Core Transformer is widely used across various sectors:

• Power Utilities: Ideal for transmission and distribution networks requiring reliable voltage transformation.
• Heavy Industry: Suitable for operations with high inrush currents and fluctuating loads.
• Infrastructure Projects: Commonly deployed in substations, commercial complexes, and public utilities.
• Energy Projects: Supports renewable energy integration and grid expansion initiatives.

Maintenance and Operational Reliability

Routine maintenance for a Laminated Core Transformer is straightforward due to its sealed oil tank and durable construction. The design minimizes the risk of oil leakage and reduces the need for frequent servicing. With proper monitoring and periodic inspection, these transformers can operate efficiently for decades, providing dependable performance in critical power systems.