High Voltage Transformer

High Voltage Transformer

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

Feature:

The transformer produced by our company adopts a new type of insulation structure, which improves the short-circuit resistance; the iron core is made of high-quality cold-rolled silicon steel plate. The high-voltage winding is made of high-quality oxygen-free copper wire and adopts a multilayer cylindrical structure. All sturdy parts are treated with special anti-loose treatment.

The product has the characteristics of high efficiency and low consumption, which can save a lot of consumption and operating costs.

Quality materials:

1) Choose oxygen-free copper wire with low resistivity, and go through a series of additional surface treatments to make it smoother, free of burrs and sharp corners, so that the load loss of the transformer is reduced and the electrical performance is more reliable.

2) Choose high-quality silicon steel plates. With the improvement of the performance level, the use of silicon steel plates with lower unit loss can reduce the no-load loss of the transformer.

3) Choose high-quality laminated wood insulation parts, which will never break, even under the action of short-circuit current, the wires will not move.

4) Select transformer oil after deep filtration. The lower water, gas and impurity content makes the transformer work more reliable.

5) Choose high-quality rubber sealing materials to effectively prevent aging and prevent leakage.

6) All raw materials have passed quality inspection, and all raw material manufacturers have been strictly reviewed in accordance with the national standard ISO9000.

Normal use condition of transformer:

The altitude does not exceed 1000m;

Environment temperature:

Maximum temperature + 40℃

The average temperature of the hottest month is +30°C

Maximum annual average temperature + 20℃

Minimum outdoor temperature -25℃

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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COMPANY OVERVIEW

Fengyuan Power is a manufacturer of high, medium and low voltage power distribution equipment. Products cover high and low voltage switch cabinets, dry-type transformers, indoor and outdoor vacuum circuit breakers, transformers, air insulated switch cabinets, gas-filled ring network cabinets, prefabricated substations and many other products, providing users with system solutions and service solutions. The rated voltage of the product is 0.4kV-40.5kV, and the rated current is 630A-4000A. The technical indicators of various products have reached national standards and industry standards.

EXHIBITION

Packing & Delivery

Certifications:

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 YO CONTACT US

Contact us:

Contact: Charles Du

Mobile: +86 18639199897

Email: Fengyuan800@outlook.com

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