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High overload distribution transformers

High Overload Distribution Transformers

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High overload distribution transformers

Product overview

In recent years, with the increasing mobility of the population, the hot season, and distribution transformers in rural areas during the Spring Festival period of severe overload short run problem of rural electricity appears. In order to solve such problem of electricity, the company response to the State Grid  Corporation of China in recent years advocated actively develop rural power distribution transformers and high overload capacity application work, we developed a high overload capacity distribution transformers.

High overload capacity integrated rural power distribution transformer station area based on typical load characteristics, high overload distribution transformer overload performance will meet the 1.5 times the rated capacity  of six hours, 1.75 times the rated capacity of 3 hours, 2.0 times the rated capacity of one hour of continuous operation stage design requirements, and does not affect the normal life of the transformer. High overload capacity distribution transformer avoids the migration of rural electricity appeared short period of severe overload, reduce operating costs grid, Improve the safety of power grid operation, which is a major direction for the future selection of rural distribution transformers.


Use of the environment

Service condition

Ambient temperature

Highest air temperature +40℃;

Lowest air temperature -25℃;

Hottest monthly average temperature +30℃;

Hottest yearly average temperature + 20℃;

The height='auto' rea above the sea level is below 1000m;

The power supply voltage’s cave is similar to sine wave ;

Three-phase power supply voltage is approximately symmetrical.

S11-M Type 6~10kV

Performance parameters

Rated capacityKVA

Voltage Combination and  tap  range

connection of transformer winding

No-load loss

(W)

Load loss (W)

No-load current (%)

Short circuit impedance (%)

High voltage

(KV)

High voltage tap range

( %)

Low voltage

(KV)

50

100

200

10

10.5

11

     ±5%

±2x2.5%

 

0.4

Dyn11

Yyn0

130

200

340

910/870

1580/1500

2730/2600

1.1

1

0.9

4

4

4

 

 

 

 

 

S13-M Type 6~10kV

Performance parameters

Rated capacityKVA

Voltage Combination and  tap  range

connection of transformer winding

No-load loss

(W)

Load loss (W)

No-load current (%)

Short circuit impedance (%)

High voltage

(KV)

High voltage tap range

( %)

Low voltage

(KV)

50

100

200

10

10.5

11

      ±5%

±2x2.5%

 

0.4

Dyn11

Yyn0

100

150

240

910/870

1580/1500

2730/2600

0.8

0.7

0.6

4

4

4

 

 

 

 

 





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