10KV Oil-immersed Distribution Transformers

10KV Oil-immersed Distribution Transformers
Details:
10KV Oil-Immersed Distribution Transformer employs the corrugated fins of its oil tank as cooling components, eliminating the necessity for an oil conservator. As the transformer oil heats or cools, the transformer naturally expands and contracts, keeping its interior shielded from the atmosphere. This isolation prevents oil degradation and protects against insulation moisture and aging, thereby boosting operational reliability.
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Description
Technical Parameters
Product Description

 

10KV oil-immersed distribution transformers are important equipment in distribution networks and power supply and distribution systems of industrial and mining enterprises. They have the advantages of compact structure, attractive appearance, small size, low noise, and strong overload capacity.
10KV class three-phase oil-immersed distribution transformers are available in hermetically sealed and conservator types. They are applicable to plant, mine, petrochemical, and other 10KV class power distribution systems for industry and agriculture. They are also popular in sites with oil contamination and chemical substances.

 

The S11-S13 series transformers, rated at 500 kVA, are constructed using premium materials and advanced technologies in their coils, bodies, and insulation. They feature minimal no-load and load losses, a consistent magnetic circuit, enhanced reliability, and energy efficiency.

 

The S11 series consists of fully sealed iron core distribution transformers. Recent developments have led to low noise and low loss transformers that eliminate joints in the iron core, significantly decreasing no-load losses and currents by 60% to 80%. The high and low voltage coils are continuously wound around the core column, resulting in compact windings with excellent concentricity, which also improves the transformer's anti-theft capabilities.

 

The S13 series is designed for low no-load loss, low no-load current, and low noise, offering significant energy-saving benefits that enhance the quality and reliability of the power supply. It is considered green energy-saving equipment that supports environmental protection, with the latest models being utilized in technological upgrade projects.

 

Both the S11 and S13 series are fully sealed three-phase wound core transformers, differing from traditional flat laminated core transformers. Their iron cores consist of three-phase column yokes arranged in a three-dimensional triangular configuration within a single frame. Each cylinder is continuously rolled from high-quality cold-rolled silicon steel strips, with widths precisely cut straight or curved using CNC cutting machines.

 

Key Features

 

Energy Efficiency

The S11 model reduces no-load loss by an average of 30% and load loss by an average of 25% compared to GB/T6451 standards, lowering operational costs by an average of 20%.

01

Long Service Life

The transformer's oil tank adopts a fully sealed structure, and the oil tank and tank edge can be bolted or welded, preventing transformer oil from contacting air and extending service life.

02

High Operational Reliability

Improvements in oil tank sealing components enhance reliability, with increased process levels ensuring the reliability of the seal.

03

Compact Size

The S11-M series transformer oil tank uses a corrugated plate radiator, allowing thermal expansion and contraction of the corrugated plate to replace the function of the oil conservator. The corrugated plate oil tank is aesthetically pleasing and occupies a small footprint.

04

 

Specifications

 

Model

S11-M, S13-M

Input Voltage

10kV

Output Voltage

0.4kV

Capacity

30-2500kVA

Frequency

50Hz

 

S11 Series 10kV Three-Phase Oil-Immersed On-Load Tap-Changing Distribution Transformer Specifications

Rated Capacity (kVA)

Voltage Combination and Tapping Range

Connection Grou Symbol

No-Load Loss (kW)

Load Loss (kW)

No-Load Current (%)

Impedance Voltage (%)

High Voltage (kV)

High Voltage Tapping Range (%)

Low Voltage (kV)

Dyn11/
Yzn11

YynO

30

6
6.3
10
10.5

±5
±2x2.5

0.4

Dyn11
Yzn11
YynO

0.1

0.63

0.6

1.5

4

50

0.13

0.91

0.87

1.3

63

0.15

1.09

1.04

1.2

80

0.18

1.31

1.25

1.2

100

0.2

1.58

1.5

1.1

125

0.24

1.89

1.8

1.1

160

0.28

2.31

2.2

1

200

0.34

2.73

2.6

1

250

0.4

3.20

3.05

0.9

315

0.48

3.83

3.65

0.9

400

0.57

4.52

4.3

0.8

500

0.68

5.41

5.15

0.8

630

Dyn11
Yyno

0.81

6.2

0.6

4.5

800

0.98

7.5

0.6

1,000

1.15

10.3

0.6

1,250

1.36

12

0.5

1,600

1.64

14.5

0.5

2,000

1.94

18.3

0.4

5

2,500

2.29

21.2

0.4

 

S13 Series 10kV Three-Phase Oil-Immersed On-Load Tap-Changing Distribution Transformer Specifications

Rated Capacity (kVA)

Voltage Combination and Tapping Range

Connection Grou Symbol

No-Load Loss (kW)

Load Loss (kW)

No-Load Current (%)

High Voltage (kV)

High Voltage Tapping Range (%)

Low Voltage (kV)

Dyn11/
Yzn11

YynO

30

6
6.3
10
10.5

±5
±2x2.5

0.4

Dyn11
Yzn11
YynO

80

630

600

4

50

100

910

870

63

110

1,090

1,040

80

130

1,310

1,250

100

150

1,580

1,500

125

170

1,890

1,800

160

200

2,310

2,200

200

240

2,730

2,600

250

290

3,200

3,050

315

340

3,830

3,650

400

410

4,520

4,300

500

480

5,410

5,150

630

Dyn11
YynO

570

6,200

4.5

800

700

7,500

1,000

830

10,300

1,250

970

12,000

1,600

1170

14,500

2,000

1360

18,300

5

2,500

1600

21,200

 

 

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