20KV/400V 100KVA Oil Immersed Transformer function

500KVA Oil Immersed Transformer

The transformer uses high-quality materials, especially the use of new technologies and new materials for the insulation of the coil and the transformer body, which significantly reduces the no-load and load loss, and the performance and structure are more reliable and superior.

1、 What is an oil immersed transformer?

Oil immersed transformer, also known as oil immersed transformer, is a transformer device that uses oil cooling to reduce the temperature of the transformer. Unlike dry transformers, the main body of an oil immersed transformer is installed in a welded steel oil tank filled with insulating oil. When an oil immersed transformer is in operation, the heat from the coil and iron core is first converted into insulating oil and then into cooling medium. According to the capacity, it can be divided into immersed Free cooling transformer and immersed forced air cooling transformer.

2、 The structure and working principle of oil immersed transformers

Oil immersed transformers are structurally similar to transformers It is one of the types of transformers classified according to the insulation form of the iron core. Therefore, it has recognizable features of oil immersed coils, which can reduce the heat map of the equipment inside.

The basic components of the oil immersed type are composed of magnetic cores, windings, and bushings. The magnetic core provides a path for magnetic flux. The winding creates a magnetic field consisting of a conductor coil wound around an iron core and insulated with a cardboard barrier and shielding layer. The thickness of the winding insulation layer increases with increasing voltage. The bushing connects the transformer winding to the substation.

Oil type transformers are used for power distribution or substations. Their core and coils are immersed in oil, which can cool and insulate. Oil circulates through the pipes in the coil and around the coil and iron core components through convection. The oil is cooled externally by the fuel tank at low rated values, and by an air-cooled radiator at high rated values.

3、 Types of oil immersed transformers

There are two main types of oil immersed transformers: single-phase transformer and three-phase transformer.

A. One phase oil immersed transformer

B. Three-phase oil immersed transformer

4、 Purpose of using oil immersed transformers

Oil type transformers can be installed on the ground, base, or pole for outdoor use. They provide efficient performance in various applications, including transmission and distribution networks, renewable energy generation, and small industries.

The oil transformer has a huge capacity, so it will save a lot of electricity, minimize energy loss, save energy, and reduce user costs. Not only that, the oil in the machine can also cool the internal wire cores, thereby improving the durability and electrical performance of transformer equipment.

5、 Precautions for using oil-immersed transformers

1. Oil immersed transformers use oil for operation, so the quality of the oil will significantly affect the lifespan and safety of the transformer.

2. During use, it is necessary to regularly inspect and maintain the transformer system to ensure the normal and safe operation of the machine. Otherwise, there is a high risk of problems and extreme danger.

3. The waste generated by petroleum is prone to polluting the environment and affecting the lives of surrounding people. Therefore, the gradual disposal of waste is also important

Advantage of oil immersed transformer:

1. Low noise

2. After the transformer is packaged, use the vacuum oiling process to completely remove the moisture in the transformer tank. After sealing, the transformer will not be in contact with the air, which effectively prevents oxygen and moisture from entering the transformer and causing deterioration of insulation performance (insulation material and oil aging), so there is no need to conduct regular oil sample tests.

3. Reliable long-term service life

4. Small size and beautiful appearance

5. No hanging core

6. Maintenance-free

Technical Features:

1. Power capacity: 30-20000KVA

2. Voltage level: 10KV, 20KV, 35KV, etc.

3. Voltage regulation type: open circuit or conduction

4. Tapping range: ±5% ±2x2.5% ±4x2.5%

5. Frequency: 50Hz or 60Hz

6. Stage: Three or single

7. Connection symbol: Dyn11, Yyn0 (or as required)

8. Short circuit impedance: standard impedance

9. The height does not exceed 1000m, and the ambient temperature does not exceed 40OC. If these conditions cannot be met, we will adjust the parameters according to the standard.

Traduction pour : Transfo H61 20KV 160kVA B2

H61 Transformer 15(20)kV 160kVA B2

Three-phase MV / LV distribution transformer with MV and LV windings in wound copper power P = 160KVA

- Compliance: NFC 52 100 - 52 112 and 52 113 standard or equivalent in substance

- Natural cooling: ONAN

- MV voltage adjustment: by switch off +/- 5% in five (5) positions

- Type: on post H61

- Nominal power: 160KVA

- Primary rated voltage: 20,000V ± 5%

- Secondary voltage: 410V off-load between phases / 240V between phase and neutral

- Frequency: 50Hz

- Short-circuit voltage: 4%

- No-load loss less than or equal to 300W

- Load loss less than or equal to 2000W

- Coupling: Dyn11 with output neutral

- MV and LV crossings: in porcelain

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EXHIBITION

Our service

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.

2. Newly purchased products provide online help for installation and commissioning. If there is a problem in the normal use of the product, we will provide a solution within one working day after receiving user feedback. We will try our best to get the product up and running as soon as possible. Professional and technical personnel will visit regularly to ensure long-term, safe and reliable use of our products.

3. We use high-quality materials to process and manufacture in strict accordance with ISO9001: 2000 international quality management standards to ensure excellent quality and stable installation!

This product is usually customized.

We are a manufacturer and have a professional technical department that can design and provide solutions according to customer needs.

Please contact our sales personnel to obtain design drawings

Here are our customer examples for your reference

Togo customer

Data Sheet N° 1-A: Transformer H61 20kV/400V of 100kVA

IF NEED MORE DETAILES,PLEASE FEEL FREE TO CONTACT US

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