Oil-Immersed Transformer, China Oil-Immersed Transformer Manufacturers, Suppliers, Factory - Jiangsu Yawei Transformer Co., Ltd

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Oil-Immersed Transformer

Standard: IEC60076 & SEC

Rated frequency: 50HZ/60 HZ

Connection and vector group: Dyn11*

Ambient temperatureerature: 55 °C

Max temperature rise: Top oil 45 °C

Average winding 50 °C

Type of cooling: ONAN

HV tapping: Off-circuit tap changer 5 positions:± 2×2.5 * %

What is an Oil Immersed Transformer?

Transformers change an alternating current (AC) to a higher or lower voltage. A current may need to move to a higher voltage as higher voltages are easier and faster to transport. A current may need to decrease its voltage in residential, commercial, and industrial areas.

 

One type of transformer is an oil-immersed transformer. Transformers often operate in high-energy, high-heat situations. An oil-filled transformer suspends the transformer of a steel tank filled with oil. The oil cools and insulates the transformer. The device uses convection to move the oil around and through the transformer, cooling it off.

To avoid oil deterioration, transformer oil must be kept at an operating temperature of less than 85°C. For the transformer to run correctly and to prevent excessive oil deterioration, the daily average operating temperature should be around 30°C.

Company Advantages

  • yawei.jpg

    JiangsuYawei transtormers have been successtuly exported to severa countries incuding the United Stotes, Canada, Panama, Venezuela, Uzbekistan,Australia,and Bulgaria.

    We have sufficient production capacity to ensure that goods can be delivered on time. We have professional after-sales teams around the world, this ensures prompt trouble shooting and resolution of any issues you may encounter.

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    Whether you are a utlity company, transformer distributor, or builder, you can purchase JiangsuYawei's power transformer with confidence,knowing that you are investing in a reliable and reputabe product.Experience the efficiency and reliablity of JiangsuYawei Transtormer tailored to meet your specific needs.

JSYW Oil immersed Transformer Product

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Oil-immersed transformers are more affordable. They are often up to half the price of a dry-type transformer with the same capacity.

Oil-immersed transformers tend to be more successful at cooling the transformer than a dry type. Oil is a better cooling medium. They also have a higher voltage capacity. Dry-type transformers operate below 35 kV, while there are no limits with oil-immersed. Oil transformers are more versatile.

Dry-type can typically go from an intermediate location to the power consumption source. Oil-immersed can function as both power and distribution transformers.

Oil-filled transformers are better for the environment, as they are much easier to recycle than dry-type. They are also smaller and work best in outdoor environments in case of an oil spill or other accident.

Parameters

Technical data of S11 series 35kV Loss-lors and non-exciting regulation transformer

Rated Capacity

(kVA)

Voltage

Combined

Vector-group

No-load Loss

(w)

Load loss

(w)75℃

No-load curren

t(%)

Short-circuitImpendance

(%)

HV(kV)

Tapping

Ranges

LV

(kV)

630 35 ±5% 3.156.310.5 Yd11 830 7870 1.10 6.5
800 980 9410 1.00
1000 1150 11540 1.00
1250 1410 13940 0.90
1600 1700 16670 0.80
2000 2180 18380 0.70
2500 2560 19670 0.60
3150 35~38.5 ±5% 3.156.310.5 3040 23090 0.56 7.0
4000 3620 27360 0.56
5000 4320 31380 0.48
6300 5250 35060 0.48 7.5
8000 35~38.5 ±2×2.5% 3.153.36.36.610.511 Ynd11 7200 38480 0.42
10000 8700 45320 0.42
12500 10080 53870 0.40 8.0
16000 12160 65840 0.40
20000 14400 79520 0.40
25000 17020 94050 0.32
31500 20220 112860 0.32

Applications

Well-ventilated indoors and outdoors in natural environment, if urban and rural power transmission and distribution network systems, some special oil transformers can also be used in places with harsh environments, such as seaside, chemical plants, coal mines, etc.
  • Industrial Field.jpg

    Industrial Field

  • Petrochemical Industry.jpg

    Petrochemical Industry

  • Power System.jpg

    Power System

  • Transportation.jpg

    Transportation

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