Distribution Transformers

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Yawei S11-S13 series 10KV to 35KV step up and step down distribution transformers are designed and produced in accordance with international and national standards, ensuring that the product’s technical level and quality standards are in line with international standards.Whether you need a specific size, temperature rating, or mounting configuration, we work closely with you to create transformers with the proper magnetic topology for your application.

Jiangsu Yawei Transformer Co.,Ltd. is one of the leading manufacturers and suppliers of distribution transformers in China. Please feel free to buy high quality distribution transformers from our factory. Customized orders are welcome.

Company Profile

In the epicenter of contemporary industry, transformer factories stand as a vital link in the chain of power transmission, distinguished by their meticulous craftsmanship and state-of-the-art machinery. Within our facility, meticulously crafted transformers form the backbone of electrical systems and epitomize the march of industrial advancement.

Products Description

S11-S13 10-35kV transformer features:

1. Economical And Environmental Friendly With Good Performance

The transformer products in the S11-S13 series exhibit lower losses and currents compared to the S9 series. This is due to the continuously wound iron core, which has a circular cross-section, allowing full utilization of the silicon steel sheet’s orientation. The iron core structure remains naturally tightened, eliminating the need for clamps that could degrade performance. As a result, the no-load loss is reduced by 20-45%, and the no-load current decreases by 60%-80%.

2. Longer Life Of The Transformer

The fuel tank features a fully sealed design. It can be secured with bolts or welded at its edges, preventing any contact between the insulating oil and the air. This design slows the aging process of the insulating properties, thereby extending its service life.

3. Low Noise

The noise has been decreased by over 10 decibels. The transformer core is a seamless unit with a compact structure, resulting in an operational noise reduction of 7-10 dB. This makes it highly suitable for installation in buildings and residential areas.

4. Reliable Operation

The components within the fuel tank have been enhanced, increasing reliability and elevating the technological standard to ensure a secure seal.

5. The Transformer Is Small In Size

The S11 and S13 models utilize corrugated plate radiators. As the oil temperature fluctuates, the corrugated plates expand and contract, effectively taking on the function of an oil conservator.

Product Certificate

1.Quality management system GB/T 19001-2016 ISO 9001: 2015

The operation of the whole YAWEI system is strictly controlled and managed. This ensures the quality of products and material in all stages, from receiving customer requests to design, materials, production, installation, testing, packaging, delivery, after-sales, all of which operate under strict and logically linked processes.

2.Certificate of compliance of UL and CUL

YaWei pad mounted transformer have been evaluated by UL in accordance with the U.S and Canada Standard(s). Our transformer certified by UL based on Canadian standards (CSA standards).

3.Accreditation certificate CE

Standard: EN 60076-1:2011.EN 60076-2:2011EN 60076-14:2013 confirms that YAWEI technical quality meets the requirements of all specific international standards for testing and calibration laboratories. All YAWEI products are fully tested in a qualified testing room before leaving the factory, ensuring stable quality and providing absolute peace of mind for customers.

Transformer General Technical Parameters

Technical Data Of SZ11 Series 35kV Low-loss And On-load Regulation Transformer

Rated Capacity
(kVA)

Voltage Combined

Vector-group

No-load Loss

75 °C
Load Loss
(W)

No Load
Loss
(W)

Short-

circuit Impendance
(%)

HV
(kV)

Tapping Ranges (%)

LV
(kV)

2000

35

±3 x 2.5%

6.3
10.5

Yd11

2300

19240

0.80

6.5

2500

2720

20640

0.80

3150

35
38.5

±3 x 2.5%

6.3
10.5

3230

24710

0.72

7.0

4000

3870

29160

0.72

5000

4640

34200

0.68

6300

5630

46770

0.68

6.3

8000

35
38.5

±3 x 2.5%

6.3
6.6
10.5
11

Ynd11

7870

40610

0.60

10000

9280

48050

0.60

12500

10940

56860

0.56

8.0

16000

13170

70320

0.54

20000

15570

82780

0.54

Transformer Testing
Transformer Packing And Shipping

Yawei Transformer boasts over 30 years of experience in transformer manufacturing and export, making them highly adept in the intricacies of transformer packaging and transportation.

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