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Dry-type Distribution Transformer

Dry-type Distribution Transformer

Dry-type distribution transformer is suitable for environments with an altitude of less than 1000m and an ambient temperature of no more than 40℃, such as power transmission and transformation systems, hotels, restaurants, high-rise buildings, commercial centers, stadiums, petrochemical plants, subways, stations, airports, offshore drilling platforms, etc. It is especially suitable for load centers and places with special fire protection requirements.


Overview

Standard

Conform to the standards of GB 1094.1-2013, GB 1094.11-2007, GB/T 10228-2008

 

Overview

Capacity: 30-2500kVA

Voltage: 10kV、20kV、35kV

Voltage regulation mode: no-excitation voltage regulation or load voltage regulation

Tap range: ±5%, ±2×2.5%, ±4×2.5%

Frequency: 50Hz/60Hz

Number of phases: three-phase

Connection group number: Y, yn0/D, yn11

Cooling method: self-cooling (AN) or air cooling (AF)

Protection level: IP00, IP20 (indoor), IP23 (outdoor)

Insulation level: F class

Insulation level:

  • 10kV: LI/AC 75/35 kV

  • 20kV: LI/AC 125/50 kV

  • 35kV: LI/AC 170/70 kV

  • 0.4kV: AC /3 kV

 

Technical characteristics

  • The high-voltage winding is made of enameled copper wire, and the low-voltage winding is wound with copper foil. The high-voltage winding is filled with glass fiber felt and poured with epoxy resin in a vacuum state. After curing, it forms a solid whole with good mechanical strength, small partial discharge and high reliability.

  • Flame retardant, explosion-proof, and non-polluting environment, it can be installed at the load center.

  • The coil does not absorb moisture, and the core and clamps are specially processed to operate in 100% relative humidity and other harsh environments. Intermittent operation does not require dehumidification.

  • High level of resistance to short circuit and lightning strike.

  • The inner and outer resin insulation layers of the coil are thin and have good heat dissipation performance. The cooling method generally adopts natural air cooling (AN). For transformers of any protection level, an air cooling system (AF) can be configured.

  • Low loss, good power saving effect, economical operation, and maintenance-free.

  • Small size, light weight, small space occupation, and easy installation.

 

Specification

Type

Capacity
(VA)

No-load loss
(W)

Load loss
(W)

No-load current
(%)

Short-circuit   impedance
(%)

Dimension(mm)

(length/width/height)

Weight
(kg)

SC(B)-10-30/10

30

190

700

2.8

4

800×400×710

310

SC(B)-10-50/10

50

270

990

2.4

4

800×500×850

390

SC(B)-10-80/10

80

360

1370

1.8

4

900×500×860

460

SC(B)-10-100/10

100

400

1570

1.5

4

980×500×900

530

SC(B)-10-125/10

125

470

1840

1.5

4

1000×600×930

600

SC(B)-10-160/10

160

540

2120

1.5

4

1100×700×1000

780

SC(B)-10-200/10

200

620

2520

1.5

4

1380×850×1260

1120

SC(B)-10-250/10

250

720

2750

1.3

4

1365×850×1350

1110

SC(B)-10-315/10

315

880

3460

1.3

4

1350×900×1260

1140

SC(B)-10-400/10

400

970

3980

1.3

4

1380×900×1460

1480

SC(B)-10-500/10

500

1160

4870

1.3

4

1380×900×1560

1850

SC(B)-10-630/10

630

1340

5870

1.2

4

1460×1000×1590

2300

SC(B)-10-630/10

630

1290

5950

1.2

6

1520×1000×1450

2100

SC(B)-10-800/10

800

1520

6950

1.2

6

1560×1150×1590

2380

SC(B)-10-1000/10

1000

1760

8120

 1

6

1590×1150×1700

2870

SC(B)-10-1250/10

1250

2080

9690

 1

6

1620×1150×1830

3150

SC(B)-10-1600/10

1600

2440

11730

 1

6

1730×1150×1900

3930

SC(B)-10-2000/10

2000

3320

14450

0.8

6

1940×1150×2050

5400

SC(B)-10-2500/10

2500

4000

17170

0.8

6

2100×1150×2430

6010


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