15KV Fully Enclosed Oil-Filled Distribution Transformer

The transformer oil inside the 15KV fully enclosed oil-filled distribution transformer is a petroleum liquid, which is likely to burn and has disadvantages in terms of environmental protection. However, due to the excellent performance and low price of transformer oil, most power transformers still use transformer oil as an insulating and cooling medium.

At the end of the 19th century, transformers began to use transformer oil as an insulating and cooling medium, and oil-immersed transformers appeared. In addition to the abundant natural storage and low price, transformer oil has the following characteristics, so it has been widely used.

1) When used in combination with fiber materials, it has good insulation performance, which can reduce the insulation distance and reduce costs.

2) Transformer oil has low viscosity and good heat transfer performance.

3) It can well protect the core and winding from the influence of moisture in the air.

4) Protect the insulating paper and insulating cardboard from the effect of oxygen, reduce the aging of the insulating material, and extend the life of the transformer.

Except for some small and medium-capacity transformers and gas transformers for special purposes, most large and medium-sized transformers still use transformer oil as a cooling and insulating medium.

The transformer impregnated with transformer oil has an insulation heat resistance grade of A and a long-term operating temperature of 105°C.

Main Technical Parameters

Working Environment：

Timetric Electric :

1. Highest ambient temperature: +40℃

2. Lowest ambient temperature: -25℃

3. Elevation: below 1000 meters

4. Highest monthly average relative humidity: 90% (at 20℃)

5. Installation location: suitable for installation in areas free from fire or explosion hazards, significant pollution, chemical corrosion, or excessive vibration, whether indoors or outdoors.

Features and advantages of transformers

Features and Benefits of :

Advantages

1. Transformer oil has good insulation and thermal conductivity, and transformer oil is cheap.

2. It can solve the problem of large-capacity heat dissipation and high-voltage insulation of transformers.

3. Water supply method of transformer cooling water system

When the transformer is running under load, the cooling water is generally taken from the technical water supply pipe of the unit. When it is running without load, the cooling water is generally taken from the public water supply main of the power station, and the water is supplied to the transformer by the no-load cooling water pump under pressure.

4. Drainage method of transformer cooling water system

Under normal circumstances, the cooling water of the transformer when it is no-load and loaded is discharged to the tail water pipe of the unit through the drainage main of the technical water supply system of the unit. A connecting valve is provided between the drainage pipes of each transformer. The connecting valve is in a closed state under normal circumstances. When the tail water pipe of the unit is required to be emptied and the transformer is still in narrow load operation. The connecting valve between this transformer and the adjacent transformer can be opened to discharge the no-load cooling water to the tail water pipe of other units.

Product Real Shot

FAQ

Can your company provide customized15KV fully enclosed oil-filled distribution transformer?

Of course, please provide all the requirements of the oil-immersed transformer as much as possible, such as: voltage, capacity, voltage ratio, frequency, product application range, cooling method, etc.

What is your fastest delivery time?

Under normal circumstances, we accept customer inquiries, communicate and confirm the specific parameters of the oil-immersed transformer, and the actual production time is determined according to the purchase quantity.

How is your after-sales service?

We support a 1-year warranty. The normal quotation does not include on-site after-sales service. Free online communication and guidance are available.