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Low Loss Power Transformer

This power transformer is a fully sealed oil-immersed transformer with the advantages of low loss and low noise, which is desirable for good energy-saving effects and reducing pollution. Compared with ordinary oil-immersed transformers, fully sealed transformers eliminate the oil conservator....

Description

Low Loss Power Transformer

This power transformer is a fully sealed oil-immersed transformer with the advantages of low loss and low noise, which is desirable for good energy-saving effects and reducing pollution. Compared with ordinary oil-immersed transformers, fully sealed transformers eliminate the oil conservator. The oil volume of the transformer is automatically adjusted and compensated by the elasticity of the corrugated sheet of the corrugated oil tank. The transformer is isolated from the air to prevent and slow down the deterioration of the oil and the aging of the insulation, enhance the reliability of operation, and the normal operation is maintenance-free.


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


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

oil-immersed distribution transformer

Normal use condition of transformer

The altitude does not exceed 1000m;

Ambient temperature:

Maximum temperature +40℃

Average temperature of the hottest month +30°C

The highest annual average temperature +20℃

Minimum outdoor temperature -25℃


Parameters

Rated capacity(kVA)

Voltage group(kV)

Connection method

Dissipation(kW)

No-load current(%)

Load current(%)

Insulating level

Weight

(KG)

No-Load

Load

(120℃)

80

HV:

11

10.5

10

6.3

6

LV:

0.4

Dyn11

OR

Yyn0

0.370

1.75

2.2

4

F/F

490

100

0.400

2.17

2.0

520

125

0.470

2.59

1.8

650

160

0.545

3.10

1.8

740

200

0.625

3.97

1.6

850

250

0.720

4.68

1.6

1005

315

0.880

5.61

1.4

1270

400

0.975

6.63

1.4

1470

500

1.160

7.95

1.4

1750

630

1.300

9.78

1.2

6

1900

800

1.520

11.56

1.2

2290

1000

1.770

13.35

1.1

2700

1250

2.090

15.64

1.1

3130

1600

2.450

18.11

1.1

3740

2000

3.320

21.25

1.0

4500

2500

4.000

24.74

1.0

5340

PRODUCT PHOTO

Low Loss Power Transformer

11kv Oil Immersed ransformer

COMPANY OVERVIEW

Jiyuan Fengyuan Electrical Equipment Co., Ltd was established in 1984 and is a designated enterprise specializing in the production of high and low voltage switch cabinets by the State Grid Corporation of China.

We have more than 30 years professional experience in high and low voltage complete switchgear cabinet,box type substation,transformer,etc, have CE,ISO, GB,CQC,certificate

Factory directly,Professional manufacturer, All can be customized according to your local requirement

Welcome to inquiry

EXHIBITION

PACKING&DELIVERY


FAQ

1. Q: What is your minimum order quantity?

A: One set.

2. Q: What is your packaging method?

A: Cover with a plastic bag and put it in a wooden box. The transformer has been transported to you by ship, train, airplane, etc. The specific transportation method is up to you.

3. Q: What are the payment terms?

A: T/T, L/C, Western Union, etc.

4. Q: Are OEM and ODM available?

A: Yes. Our products can be customized. We have a team of design and engineers, and we can customize products according to customers' drawings or requirements.

5. Q: Are you a manufacturer or a trader?

A: We are a professional transformer manufacturer with more than 20 years of design experience.

6. Q: Where is your factory?

A: Our factory is located in Henan, China, and the delivery is timely. Warmly welcome you to visit the factory. Once we have your schedule, we will arrange professionals to follow up with your needs.


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

DESIGNATIONS

UNITS

SPECIFIC DATA

CANDIDATE DATA

Maker


To be indicated


Reference standard


IEC 60076


Type


Phase


Vat


Hermetic


Execution


Tropicalized


Dielectric


PCB-free oil


Installation


On pole


Operating ambient temperature

°C

45


Rated frequency

Hz

50


Rated power

Kva

100


Rated primary voltage

Kv

20


Isolation level assigned to primary school

Kv

24


Number of phases in primary school


03


Secondary voltage

V

400/230


Voltage adjustment range on the M side when unladen

%

±2.5


Coupling


DYn11


Short circuit voltage

%

4 – 4.5


Neutral sized for one load

%

100


Maximum vacuum losses

W

230 - 460


Losses due to Maxi load

W

1450 - 2350


Maximum steady-state oil temperature

°C

55


Maximum temperature of the windings in steady state

°C

60


Winding material


Electrolytic copper


Maximum noise level

Db

52


50Hz industrial frequency hold, 1 min

Kv

50 – 70


Shock wave resistance (1.2/50 micros)

Kv

125 - 170


Cooling


ONAN


Nameplate


01


Grounding connection


01


Dimensions Height/width/depth

mm x mm x mm

1200 X 1270 X 820


Total mass of transformer including oil

Kg

700


Oil mass

Kg

160


PAINT




§ Tropicalized and anti-rust



Number

§ Layers




§ Binder




§ Colour




Plans and technical diagrams to be provided.


IF NEED MORE DETAILES,PLEASE FEEL FREE YO CONTACT US


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