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SZ11-35kV Three-phase Oil-immersed Transformer

The SZ11-35 series 35kV oil-immersed on-load tap-changer transformer is a high-efficiency, energy-saving type, specially designed for medium-voltage power distribution systems. It adopts on-load tap-changing technology , which can change voltage under load without power outages , and can perfectly solve the problem of grid voltage fluctuation . Its no-load loss is more than 15% lower than the traditional off-load tap-changing transformer. It has excellent energy-saving effect, which fully meets the demands of the global medium-voltage power distribution market.
  • SZ11-35kV

  • Future Electric

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Product Features:

1. The transformer uses on-load tap-changing technology, which can adjust voltage under load without power outage, perfectly solving the problem of grid voltage fluctuation, and ensuring stable power supply.

2. The transformer core is made of high-permeability cold-rolled silicon steel sheets with a fully oblique joint structure, leading to extremely low magnetic reluctance. This drastically reduces no-load loss, no-load current and noise, resulting in energy savings far greater than traditional models.

3. The transformer is designed with optimised and compact structure, and short-circuit withstand capability is far beyond the industry standard. It can withstand short circuit currents of very high magnitude and very high reliability in service.

4. Fully sealed oil-immersed design, no oil leakage problem at all, good moisture-proof and dust-proof performance, applicable to various harsh environments, such as tropical and desert areas.

Technical Parameters

 

Model

Rated Capacity
KVA

Voltage combination and Tap range

Connection
symbol

No-Load Loss
KW

LoadLoss
KW

Short Circuit impedance
%

Noload
current
%

HighVoltage
KV

High voltage Tap range%

LowVoltage
KV

SZ11-2000/35

2000

35

38.5

±3×2.5%

6.3

6.6

10.5

11

Yd11

2.3

19.24

6.5

0.8

SZ11-2500/35

2500

2.72

20.64

6.5

0.8

SZ11-3150/35

3150

3.23

24.71

7

0.72

SZ11-4000/35

4000

2.87

29.16

7

0.72

SZ11-5000/35

5000

4.64

34.2

7

0.68

SZ11-6300/35

6300

5.63

36.8

7.5

0.68

SZ11-8000/35

8000

YNd11

7.87

40.6

7.5

0.6

SZ11-10000/35

10000

9.28

48.1

7.5

0.6

SZ11-12000/35

12500

10.94

56.9

8

0.56

SZ11-16000/35

16000

13.17

70.3

8

0.54

SZ11-20000/35

20000

15.57

82.8

8

0.54

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The Group's core businesses cover high-end manufacturing and industrial fields such as chemical products, transformers, and electrical equipment, with transformers and other electrical equipment being the Group's strategic leading industries.

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