Product Introduction:  

The S-series 35kV power transformer is a kind of power equipment of high efficiency, energy saving, low noise and high reliability. It is widely used in urban and rural power distribution networks, industrial parks and various high-load operating environments. This series of transformers are based on high technology and high quality materials and have outstanding electrical performance and operating stability.

Use Cases:

1. Regional sub-stations main equipment with low loss and low noise features.

2. Main power supply for load centers, emphasising short-circuit resistance and reliability

3. Energy stations at the park level, integrated, with a focus on efficiency and ease of operation and maintenance

Product Features

1.Strong overload capacity: large temperature margin, long-term stable operation in high temperature and high load conditions

2.Durable look: polished and rust removed, powder electrostatic spraying, with wide fin radiators, coating is weather resistant and fade resistant.

3.One-piece moulded acrylic seals Factory tested for positive and negative pressure leaks to reduce the risk of leakage

4.Safety and Environmental Protection: Materials and processes meet the requirements of safety and environmental protection, low smoke and low corrosion, more environmentally friendly.

Technical Parameters

Design and Operation of Oil-Immersed Transformers:

Ordinary transformers and oil-filled transformers are built the same way. They are one of the kind of transformers which are based on core insulation method. Thus, they have the significant features of the oil-immersed coils, which mitigates the thermal effects on the internal components.

The main parts of an oil-immersed transformer are core, windings and bushings. the core gives a path for magnetic flux. The magnetic field is produced by the windings. They consist of coils of conductor wound on the core and insulated with cardboard diaphragms and shielding layers. With increase in voltage, thickness of winding insulation increases. The transformer windings lead to the substation through bushings.

Oil-immersed transformers are used for power distribution or substation applications. Their core and coils are immersed in oil . The oil serves as cooling and insulation . The oil circulates by convection in oil pipes in the coils and flows around the coil and core assemblies. The oil is cooled externally by the tank in small-power transformers. But in large-power transformers, the oil is cooled by an air-cooled radiator.

Benefits of Oil-Immersed Transformers:

1. Oil-immersed transformers are installed in on the ground, on a base or on a pole and suitable for outdoor environment. They are effectively used in many applications such as power transmission and distribution networks, renewable energy generation and small scale industrial applications.

2. Oil-immersed transformers have a large capacity so that they save a lot of electricity, minimise power loss, conserve energy and reduce costs for the user. The oil inside the transformer also cools the internal core. This increases the durability and electrical performance of the transformer.

Normal service conditions:

1. Maximum ambient temperature <= +40℃

2. Ambient temperature min. ≥ -25℃

3. Standard installation height <=1000m

4. De-rating is necessary under special conditions.