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Three-phase oil-immersed 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

Features

1: Low no-load loss and low load loss;

2: Low noise;

3: Low-voltage partial discharge;

4: High short circuit resistance;

5: Reliable performance, no oil leakage, no damage.

Compared with the S9 series transformers, the S13-M series transformers reduce the no-load loss by 30%; reduce the no-load current by 70-85%; reduce the average temperature rise by 10K; double the service life; reduce the noise of 2-4db; reduce 40% of operating costs.

Ordinary S13-M series transformers are suitable for altitudes below 1000m; the ambient temperature is between -25ºC and +40ºC.

Application:

Due to the need for fire protection, oil-immersed transformers are usually installed indoors or outdoors in a single transformer. They have the characteristics of large size, low cost, simple maintenance, good heat dissipation, strong overload capacity, and strong environmental adaptability. .

In the operation of an oil-immersed transformer, the heat of the winding and the iron core is first transferred to the oil, and then transferred to the cooling medium through the oil. Oil-immersed transformer equipment uses oil as the main insulation method. Oil-immersed transformers are widely used in power plants, steel plants, railways and other large machinery manufacturing industries. Oil-immersed transformers use oil as the cooling medium. They are suitable for power systems in petrochemical, electric power, textile, metallurgy, machinery, building materials, coal, mining, urban construction, civil aviation, ports and other industries, such as rated frequency 50HZ and rated capacity 30 ~1600KVA, high-voltage side rated voltage 10KV, low-voltage side rated voltage 0.4kv power distribution.

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COMPANY OVERVIEW

FAQ:

Q1: Is OEM/ODM available?

A1: Yes, it is! Our products can be Customized. We have design and engineer teams,we can customize products according to customers' drawing or requirements.

Q2: What's your MOQ?

A2: One Set.

Q3: How is the delivery time?

A3: It depends your order quantity and it normally takes about 20-30 days.

Q4: How do you control the quality?

A4: We have QC team comply with TQM to ensure the quality. Each step is in compliance to the standards. At the same time, we will take photos and shoot video for you if you need.Every product will be fully assembled and carefully tested before packing and shipping.

Q5: How long is the warranty?

A5: Within one year from the sale date, if there are any accessory problems, you just provide the photos of damaged accessory, then we will provide free accessory. According to the number of products, we will provide easily damaged accessories for free. We also can provide technical support if you need.

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Welcome to inquiry

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

Contact information:

Jiyuan Fengyuan Electrical Equipment Co., Ltd

Sales Department

Contact person:Mr Charles Du

E-mail:fengyuan800@outlook.com

Mobile:+8618639199897(Available for whatsapp,wechat,skype)

Add:Huling industrial zone,jiyuancity,henan province,China

TEL:+86-0391-2180800

FAX:+86-0391-2180818

Our company adheres to the business strategy of 'scientific development, independent innovation, and enhancement of core competitiveness', and strives to make our product quality reach the leading level in the Meet RoHS Requirement Pq Ferrite Core Single Phase Power Transmission Transformer Suitable for Electric Energy Meter industry. We'll be delighted to present you a quotation on receipt of one's comprehensive specs. Our company does not take profit as the goal, does not take the scale of assets as the goal, does not cater to the market with low price and reduce the quality of products.