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220kV power transformer
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1000

220kV power transformer

The 220kV power transformer developed and produced by Tianan Electric adopts a 110kV power transformer folded plate fuel tank structure, which makes the product structure more reasonable, convenient for on-site installation and hanging cover inspection, and combines the company’s years of experience in transformer production and design, product reliability and performance The indicators have reached the international advanced level. After continuous improvement and improvement, a series of products have been formed. The product series include three-phase dual-winding and three-winding non-excitation voltage-regulating transformers, on-load voltage-regulating transformers and autotransformers.
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Number of views:
1000
Product serial number
E1
Category:
Transformer
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1
Detail
Parameters
Features
Technical Parameter
Case

The 220kV power transformer developed and produced by Tianan Electric adopts a 110kV power transformer folded plate fuel tank structure, which makes the product structure more reasonable, convenient for on-site installation and hanging cover inspection, and combines the company’s years of experience in transformer production and design, product reliability and performance The indicators have reached the international advanced level. After continuous improvement and improvement, a series of products have been formed. The product series include three-phase dual-winding and three-winding non-excitation voltage-regulating transformers, on-load voltage-regulating transformers and autotransformers.

Product application: power plants, substations, large industrial and mining enterprises

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1)Super strong transformer resistance to sudden short circuit
2)Reduce load loss through accurate leakage magnetic field calculation
3)Low partial discharge
4)Low noise
5)The use of high-quality oxygen-free copper wire coils, self-adhesive transposition wires, and six-sided positioning on the body ensure high strength of the product
6)The iron chip is made of high-quality, superior-performance Hi-B silicon steel sheet, cut with a CNC-controlled GEORG iron core cutting line, and rounding measures are adopted.
7)Fully enclosed structure oil tank, special sealing structure design, guarantee the product life of 30 years, maintenance-free operation
8)Advanced kerosene gas phase drying equipment is used to thoroughly dry the transformer, and the full vacuum oil injection process is used to ensure the insulation performance of the insulating parts and the oil, which greatly improves the safety and reliability of the transformer.

 

(S11 series 220kV three-phase dual-winding non-excitation voltage regulating power transformer)

 

Rated Capacity

Voltage combination and tapping range

Connection group

No load loss
(kW)

Load loss(kW)

No-load current
(%)

Short circuit impedance
(%)

high pressure HV

Low pressure LV

31500

220
±2×2.5%

 

242
±2×2.5%

6.3
6.6
10.5
11

Ynd11

28

128.3

0.5

12~14

40000

32.8

149.2

0.5

50000

39.2

179.6

0.45

63000

46.4

209.0

0.45

75000

10.5
11
13.8

53.6

237.5

0.4

90000

61.6

273.6

0.35

120000

75.2

327.8

0.35

150000

11
13.8
15.75
18、20

89.6

384.8

0.3

160000

93.6

403.8

0.29

180000

102.4

436.1

0.26

240000

128.0

538.7

0.22

300000

 

151.2

641.3

0.18

360000

173.6

735.3

0.18

370000

176.8

750.5

0.18

400000

 

 

 

187.2

795.2

0.15

 

420000

 

 

 

193.6

824.6

0.15

 

S11 series 220kV three-phase three-winding on-load tapping power transformer

Rated Capacity

Voltage combination and tapping range

Connection group

No load loss
(kW)

Load loss(kW)

No-load current
(%)

Capacity allocation(%)

Short circuit impedance
(%)

high pressure HV

Medium pressure MV

Low pressure LV

31500

220
±8×1.25%

69
115
121

6.3
6.6
10.5
11
35
37
38.5

YNyn0d11

35.2

153.9

0.57

100/100/100
100/50/100
100/100/50

High-Medium
12~14

High-low
22~24

Medium-low
7~9

40000

41.6

179.6

0.50

50000

48

213.8

0.43

63000

56

248.0

0.43

90000

   73.6

333.5

0.36

120000

92

410.4

0.36

150000

10.5
11
13.8
35
37
38.5

108

487.4

0.29

180000

124.8

598.5

0.29

240000

154.4

741.0

0.25

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Ningbo Tianan (Group) Co., Ltd. was founded in 1969, covers an area of 1298 acres, more than 1800 employees. Is a focus on smart grid, "new infrastructure", "integrated smart energy" and other fields of power distribution switching equipment research and development, production, sales and service of the national key high-tech enterprises.

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