Structural features

The oil-immersed distribution transformer produced by our company adopts a new insulation structure to improve the short-circuit resistance; the iron core is made of high-quality cold-rolled silicon steel sheet; the high-voltage windings are made of high-quality oxygen-free copper wire, and Adopt multi-layer cylindrical structure; all solid parts are treated with special anti-loosening treatment.

Technical Features

The product has the characteristics of high efficiency and low loss, which can save a lot of power consumption and operating costs, and has significant social benefits. It is a popular new technology product.

reliable structure

structural improvement

1. Spiral coil with longitudinal oil channel, better internal heat dissipation;

2. The effective support of the coil end face is improved, and the ability to resist short-circuit current is stronger;

3. A new hoisting structure and body positioning structure are adopted to ensure more reliability in long-distance transportation and operation;

4. We also have many unique and reliable structures to serve you;

5. Selecting a transformer with a higher performance level will have a higher level of technical content.

high quality material

Oxygen-free copper wire

Oxygen-free copper wire with lower resistivity is selected, and after a series of additional surface treatments, it is smoother and has no burr sharp corners, so that the load loss of the transformer is lower and the electrical performance is more reliable.

High quality silicon steel sheet

High-quality silicon steel sheets are selected, and with the improvement of performance level, silicon steel sheets with lower unit loss are used, so that the no-load loss of the transformer is lower.

Premium quality laminated wood insulation

Choose high-quality laminated wood insulation, never crack, even under the action of short-circuit current, it will not move.

Deep filtered transformer oil

Using deep-filtered transformer oil with lower water, gas and impurity levels, the transformer works more reliably.

High quality rubber sealing material

Use high-quality rubber sealing materials to effectively prevent aging and prevent leakage.

Raw materials are inspected

All raw material manufacturers have passed the strict inspection according to the national standard ISO9000.

Good technical and economic performance

Performance

On the basis of the S9 series, the S11 series products have an average no-load loss reduction of 30%; no-load current is reduced by 70-85% compared with S9; It can still operate for a long time under the conditions of high temperature; the operating noise of the product is reduced by 2-4 decibels on average.

fully sealed

Improved sealing structure

The oil tank adopts a fully-sealed structure. Compared with the ordinary oil-immersed transformer, the fully-sealed distribution transformer cancels the oil conservator. The wave fin of the oil tank replaces the oil pipe as the cooling and heat dissipation element. The corrugated oil tank is made of high-quality cold-rolled sheet on a special production line. , The wave fin can expand and shrink the volume of transformer oil, so as to isolate the transformer from the atmosphere, prevent and slow down the oil deterioration and insulation moisture, enhance the operational reliability, and maintain normal operation without maintenance. The surface of the corrugated fuel tank is coated with conformal paint after degreasing, rust removal and phosphating treatment, which is suitable for use in metallurgy, petrochemical, mining and other environments.

Transformer Product Standard

GB

GB 1094.1-1996 GB 1094.2-1996 JB/T10088-2004 GB 1094.3-2003 GB 1094.5-2003 GB/T 10237-1988 GB/T 6451-2008 GB/T 7595-1987 JB/T 3837-2010

Transformer usage conditions

Altitude

not more than 1000m

ambient temperature

The highest temperature +40℃ The hottest month average temperature +30℃ The highest annual average temperature +20℃ The outdoor minimum temperature is -25℃

Transformer special conditions of use (detailed when ordering)

Altitude

over 1000m

ambient temperature

Maximum temperature +40℃ Minimum temperature -25℃

Rated capacity (kvar) 

Voltage combination and tap range (kv) 

link group label

No-load loss (W) 

Load loss (W) 

No-load current %

Short circuit impedance  (%)

Weight (kg)

Dimensions (mm) ( length Lx width Bx height H)

Installation size

High voltage (kV) 

High pressure tap range %

Low voltage (kV) 

Body lifting weight

oil weight

gross weight

2000

35 36.5 38.5

±3x2.5

6.3 6.6 10.5 11

Yd11

2300

19200

0.5

6.5

2660

1170

4730

2780x1900x2160

1070/1070

2500

2720

20600

0.5

3010

1250

5400

2820x2180x2270

1070/1070

3150

3230

24700

0.5

7

3750

1650

7590

3170x2270x2580

1070/1070

4000

3870

29100

0.5

4780

2000

8750

3290x2320x2640

1070/1070

5000

4640

34200

0.5

5500

2240

9880

3480x2380x2710

1070/1070

6300

5630

36700

0.5

8

7350

2690

12400

3750x2520x2870

1475/1475

8000

YNd11

7870

40600

0.4

8720

2720

13850

3840x2640x3080

1475/1475

10000

9280

48000

0.4

10300

3180

16700

3940x2680x3160

1475/1475

12500

10600

56800

0.35

12500

3950

19600

4000x2890x3390

1475/1475

16000

13100

70300

0.35

16100

4560

23900

4150x3160x3520

1475/1475

20000

15600

82700

0.35

18500

5480

29700

4260x3530x3910

1475/1475

Note: The high voltage of the on-load voltage regulating transformer can provide ±3x2.5% or ±4x2.5% voltage regulation range