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 previous generation, S13 series products reduce the no-load loss by 30% on average; the no-load current is reduced by 70-85% compared with the previous generation; the average temperature rise is reduced by 10K, and the service life of the product is more than doubled, even when the overload is 20%. It can still run for a long time under the conditions; 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 (%)

Body lifting weight

oil weight

gross weight

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

Installation size

High voltage (kV)

High pressure decomposition range %

Low voltage (kV)

50

30 33 35 36.5 38.5

±5

0.4

Yyno Dyn11

130

1200/1140

1.3

6.5

360

200

650

1050x930x1400

550/550

100

180

2010/1910

1.1

460

220

790

1050x940x1460

550/550

125

210

2370/2260

1.1

490

240

850

1050x960x1510

550/550

160

230

2820/2680

1

570

260

970

1050x980x1540

550/550

200

270

3320/3160

1

670

300

1120

1100x1070x1600

550/550

250

320

3950/3760

0.95

740

330

1260

1120x1100x1660

660/660

315

380

4750/4530

0.95

890

360

1470

1130x1130x1710

660/660

400

460

5740/5470

0.85

1020

400

1660

1750x850x1720

660/660

500

540

6910/6580

0.85

1150

440

1870

1850x900x1760

660/660

630

660

7860

0.65

1300

520

2180

1950x1000x1800

820/820

800

780

9400

0.65

1510

560

2490

2060x1100x1890

820/820

1000

920

11500

0.65

1750

620

2880

2180x1200x1940

820/820

1250

1120

13900

0.6

1940

670

3320

2200x1200x2000

820/820

1600

1350

16600

0.6

2180

790

3870

2350x1330x2200

820/820

2000

1590

19700

0.55

2450

820

4170

2080x1900x2250

1070/1070

2500

1890

23200

0.55

2820

920

4860

2100x2180x2350

1070/1070