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 S9, S11 series products have an average reduction of 30% in no-load loss; no-load current is reduced by 70-85% compared with S9; 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

Select M in S11(M)R to indicate that the oil tank adopts a fully sealed structure. Compared with ordinary oil-immersed transformers, the fully sealed distribution transformer has canceled the oil conservator, and the wave fin of the oil tank replaces the oil pipe as the cooling and heat dissipation element, and the corrugated oil tank Made of high-quality cold-rolled sheet on a special production line, the wave fin can expand and contract the volume of transformer oil, so as to isolate the transformer from the atmosphere, prevent and slow down oil deterioration and insulation moisture, enhance 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, 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 tap range %

Low voltage (kV)

10

6 6.3 10 10.5 11

±5 ±2x2.5%

0.4

Yyno Dyn11 Yzn11

60

400

2.5

4

105

35

170

560x370x850

400/400

20

80

520

1.9

135

50

220

620x500x870

400/400

30

100

630/600

1.5

170

60

280

680x520x880

400/400

50

130

910/870

1.3

190

60

310

680x550x910

400/-400

63

150

1090/1040

1.2

220

75

360

710x560x920

400/400

80

180

1310/1250

1.2

250

80

390

730x580x950

400/400

100

200

1580/1500

1.1

310

85

470

760x670x1000

400/400

125

240

1890/1800

1.1

320

95

510

1000x690x1000

400/400

160

280

2310/2200

1

400

120

630

1010x700x1080

550/550

200

340

2730/2600

1

430

120

680

1110x790x1100

550/550

250

400

3200/3050

0.9

510

140

790

1180x800x1110

550/550

315

480

3830/3650

0.9

580

150

900

1230x910x1 140

550/550

400

570

4520/4300

0.8

670

180

1070

1340x950x1220

660/660

500

680

5410/5150

0.8

810

210

1270

1440x1030x1250

660/660

630

810

6200

0.6

4.5

960

270

1580

1600x1160x1310

660/660

800

980

7500

0.6

1140

310

1830

1680x1220x1350

660/660

1000

1150

10300

0.6

1330

370

2150

1700x1220x1440

820/820

1250

1360

12000

0.5

1560

510

2800

1760x1280x1600

820/820

1600

1640

14500

0.5

1810

520

3100

1780x1290x1640

820/820

2000

1940

18300

0.4

2090

650

3800

1850x1310x1650

820/820

2500

2290

21200

0.4

2580

850

4650

1910x1880x1750

820/820

Note: 1. According to the requirements of the user department, the transformer with low voltage of 0.69kV can be provided. 2. Above the slash is the loss of Dyn11 or Yzn11. 3. High voltage tap range ±5% or ±2×2.5%; frequency 50Hz;