33kv 11kv transformer manufacturer top 10 transformer manufacturing company oil immersed transformer electric oil type

* This model is produced in accordance with Chinese national GB standards and the international IEC standards. 

* It uses oil as the main insulation means of the transformer, and relies on oil as the cooling medium, such as oil-immersed natural cooling, oil-immersed air cooling, etc. 

* Widely used in chemical plants, factories, remote places and other harsh environments.           

Product Features:
The S11 series fully sealed oil-immersed power transformer developed and produced by the company has the advantages of low loss, low noise and high efficiency, which can achieve good energy-saving effects and reduce pollution.
The transformer is isolated from the air to prevent and slow down the deterioration of oil and insulation aging so as to enhance operational reliability, and maintain normal operation without maintenance.

1.The transformer core is laminated with quality cold-rolled silicon steel sheets, which greatly reduces the no-load loss and no-load current. The core is bound to ensure the tightness of the core and reduce noise.
2.High and low voltage windings are made of oxygen-free copper, and low voltage windings of 500kVA and below adopt double-layer cylindrical structure. 630kVA and above adopt double helix or four helix structure, high voltage winding adopts multilayer cylindrical structure. 1000kVA and above can adopt foil winding.
3.The transformer connection group uses Dyn11 to reduce the impact of harmonics on the power grid and improve the quality of power supply.
4.The transformer is a fully sealed structure, which prolongs the service life. A positioning mechanism is added to the body to prevent displacement during transportation. At the same time, all fasteners are equipped with fastening nuts to ensure that the fasteners are not loose during long-term operation, which meets the requirement of not hanging the core.
5.The measured noise value is lower than the standard. After this series of transformers have been transported normally, the relevant parts can be installed without core inspection, and they can be put into operation once the acceptance test is qualified.

6.The terminal box can be used for oil transformers above 2000kva, which can reduce on-site installation time, improve product’s protection level to IP54, and prolong the service life of the protection components. 

Product Standard:
GB/T 1094 Power Transformer
GB/T 15164 Oil-immersed Power Transformer Load Guide
GB/T 6451 Three-phase Oil-immersed Power Transformer Technical Parameters and Requirements
GB/T 2536 Transformer Oil
GB/T 311.1 Insulation Coordination of High-voltage Power Transmission and Transformation Equipment
GB/T 10237 Insulation Level of Power Transformer and Air Gap of External Insulation in Insulation Test
DL/T 572 Transformer Operation Regulations

IEC60076

Applicable Environment:
1.High ambient temperature: +40℃
2.Low ambient temperature: -25℃
3.Altitude: <1000m. We can also customize according to your demand.
4.Monthly average relative humidity: 90% (20℃)
5.Installation location: Chemical plants, factories, remote places and other harsh environments.

Model Implication:

Technical Parameter:

Low-voltage foil winding area:

Case Storage Area:

Coil installation:

Assembly:

Testing:

1.Our company provides you with project design and process design, and designs and manufactures products according to your equipment purchase plan and specific needs. And train technical and operating personnel for you.

2.The newly purchased products are provided with online assistance for installation and debugging. The products are under the lifelong service system. If problems occur in normal use, we will provide solutions within one working day after receiving user's feedback. We will try our best to get the product up and running as soon as possible. And there are regular visits by professional technicians to ensure the long-term, safe and reliable use of our products.

3.We use quality authentic materials, process and manufacture in strict compliance with ISO9001:2000 international quality management to ensure the quality of excellence and the smooth installation!

TSTY Electric Co., Ltd. was established in 2007 and is an excellent and reliable transformer manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations and high and low voltage complete sets of equipment.

The equipment put into production and operation of the project advocates energy saving, intelligence, information and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center, with 71 utility model patents and 15 invention patents.

With years of accumulation in the transformer industry and strong technological innovation capabilities, it provides comprehensive solutions for the Chinese power industry. The company is a key procurement unit for large-scale national projects such as State Grid, State Railway Administration, Zhengzhou Coal Group, Pingmei Group and South-to-North Water Diversion.