25 Mva Traction Transformer for Railway

Convenient implementation, low cost, convenient connection with the existing traction power supply system, is conducive to the development of high-speed heavy-haul railway in China.

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Product Details
41(001)

25 mva traction transformer for railway is suitable for the situation where the power system capacity is large, the power network is relatively developed, and the three-phase load electricity can be supplied reliably from the local power grid.


Product Introduction

Convenient implementation, low cost, convenient connection with the existing traction power supply system, is conducive to the development of high-speed heavy-haul railway in China.


Products Specification

Rated Capacity
(kVA)

High Voltage
(kV)

H.V Tap Range

(%)

Low Voltage
(kV)

Vector Group

Short-circuit Impedance

(%)

No-load Loss

(kW)

On-load Loss

(kW)

No-load Curret

(%)

6300

110
121
138

±2*2.5%

6.3
6.6
10.5
11

YNd11

10.5

7.44

34.2

0.77

8000

9

42.8

0.77

10000

10.6

50.4

0.72

12500

12.5

59.9

0.72

16000

15

73.2

0.67

20000

17.6

88.4

0.67

25000

20.8

104.5

0.62

31500

24.6

126.4

0.6

40000

29.4

148

0.56

50000

35.2

184

0.52

63000

41.6

222

0.48

75000

13.8, 15.75, 18, 20, 35,
37, 38.5

12~14

47.2

264

0.42

90000

54.4

304

0.38

120000

67.8

377

0.34

150000

80

448

0.3

180000

90

505

0.25


Product feature and application

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Product qualification

image005(001)image007(001)

We have a number of outstanding technical personnel, and our products were popular in domestic and foreign markets. We have KEMA&CESI reports, which were acknowledged in industry.


Deliver-shipping and serving

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Delivery time

Normally, if with MR or ABB tap changer, the max. Deliver time about 120 days after technical drawings confirmed, if with Chinese brand tap changer, max. 90 days for any capacity and voltage range transformer.

Packing

The transformer main body usually in nude, and the accessories are packed in plywood case with steel structure, it’s worthy for ocean transportation.

Transportation

Usually, the total weight under 45 tons, it’s available by kinds of container, above 45 tons, it’s available by bulk ship.

After service

Usually, we will dispatch experienced technicians to client’s installation site for the supervision service within 15 working days after getting official information.


FAQ

1.What is the material of the core?

The core is formed by thin sheets of steel that have some losses in their operation. The losses in this component are called “losses in the iron.

2.What is the main protection of the transformer?

The differential protection is the main protection of the transformer.

3.The main transformer is equipped with what to protect the temperature and overvoltage

of the transformer?

Temperature sensor, pressure relief valve and oil flow detection relay.


Latest News

When using the strong oil air cooling mode, when the pump and fan lose the power supply, the transformer cannot run for a long time even if there is no load.Therefore, two independent power supplies should be selected for the cooler.

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