20kV Oil-Immersed Transformer

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20kV Oil-Immersed Transformer

20kV Oil-Immersed Transformer

Energy-efficient 20kV-class oil-immersed distribution transformer for commercial distribution, residential communities, rural grids, and industrial factories.

Quick Specifications

Power Rating

30-2500 kVA

Voltage Class

20kV / 0.4kV, 22kV / 0.433kV on request

Frequency

50/60 Hz

Application

Commercial / Residential / Rural Grid / Industrial

Product Overview

This series of oil-immersed transformers breaks through the traditional planar structure and adopts a three-phase symmetrical three-dimensional structure.

The magnetic circuits of the three-phase iron cores are completely symmetrical, which greatly reduces magnetic resistance and significantly lowers exciting current and no-load loss.

It is an energy-efficient transformer that uses traditional materials while achieving lower operating noise and a more compact overall structure.

The design delivers strong performance in energy conservation, consumption reduction, material saving, and environmental protection.

Application Scenarios

  • Commercial power distribution
  • Residential community power supply
  • Rural power grid distribution
  • Industrial factory power supply

Applicable Standards

  • GB 1094-2013 Power Transformer
  • GB/T 6451-2015 Technical Parameters and Requirements for Oil-Immersed Power Transformers
  • IEC 60076 Power Transformers

Normal Service Conditions

  • Installation altitude below 1000 meters.
  • Highest ambient temperature: +40 degrees Celsius.
  • Highest daily average temperature: +20 degrees Celsius.
  • Lowest outdoor temperature: -25 degrees Celsius.

Performance Parameters

20kV Series Technical Parameter Table

Rated Capacity (kVA) Voltage Group (HV / LV) Vector Group No-Load Loss (W) Load Loss (W) No-Load Current (%) Impedance Voltage (%) Boundary Dimensions (L x W x H, mm) Weight (kg)
30 20 / 22 / 24 kV / 0.4 kV Dyn11 / Yyn0 100 690 / 660 2.1 5.5 670 x 310 x 615 346
50 20 / 22 / 24 kV / 0.4 kV Dyn11 / Yyn0 130 1010 / 960 2.0 5.5 700 x 325 x 630 417
80 20 / 22 / 24 kV / 0.4 kV Dyn11 / Yyn0 180 1440 / 1370 1.8 5.5 755 x 355 x 690 556
100 20 / 22 / 24 kV / 0.4 kV Dyn11 / Yyn0 200 1730 / 1650 1.6 5.5 785 x 360 x 685 619
125 20 / 22 / 24 kV / 0.4 kV Dyn11 / Yyn0 240 2080 / 1980 1.5 5.5 805 x 370 x 720 703
160 20 / 22 / 24 kV / 0.4 kV Dyn11 / Yyn0 290 2540 / 2420 1.4 5.5 850 x 385 x 735 794
200 20 / 22 / 24 kV / 0.4 kV Dyn11 / Yyn0 340 3000 / 2860 1.3 5.5 865 x 405 x 805 935
250 20 / 22 / 24 kV / 0.4 kV Dyn11 / Yyn0 400 3520 / 3350 1.2 5.5 905 x 415 x 935 1086
315 20 / 22 / 24 kV / 0.4 kV Dyn11 / Yyn0 480 4210 / 4010 1.1 5.5 925 x 440 x 915 1226
400 20 / 22 / 24 kV / 0.4 kV Dyn11 / Yyn0 570 4970 / 4730 1.0 5.5 970 x 465 x 960 1468
500 20 / 22 / 24 kV / 0.4 kV Dyn11 / Yyn0 680 5940 / 5660 1.0 5.5 1035 x 500 x 1010 1758
630 20 / 22 / 24 kV / 0.4 kV Dyn11 / Yyn0 810 6820 0.9 6.0 1110 x 525 x 1075 2074
800 20 / 22 / 24 kV / 0.4 kV Dyn11 / Yyn0 980 8250 0.8 6.0 1190 x 580 x 1155 2840
1000 20 / 22 / 24 kV / 0.4 kV Dyn11 / Yyn0 1150 11330 0.7 6.0 1205 x 560 x 1195 2842
1250 20 / 22 / 24 kV / 0.4 kV Dyn11 / Yyn0 1380 13200 0.7 6.0 1185 x 590 x 1205 3168
1600 20 / 22 / 24 kV / 0.4 kV Dyn11 / Yyn0 1660 15950 0.6 6.0 1225 x 565 x 1345 3800
2000 20 / 22 / 24 kV / 0.4 kV Dyn11 / Yyn0 1950 19140 0.6 6.0 1310 x 615 x 1435 4633
2500 20 / 22 / 24 kV / 0.4 kV Dyn11 / Yyn0 2340 22220 0.5 6.0 1390 x 660 x 1510 5329

FAQ

Of course. This product covers the voltage class commonly used in Asian markets. Its highest voltage class is 24 kV, so 22 kV is fully within the supported range. We can absolutely manufacture a 22 kV / 0.433 kV version for your project.
Yes. We can customize capacity, HV/LV voltage combination, vector group, tapping method, terminal layout, enclosure finish, and accessory package to match utility, EPC, or industrial project requirements.
It is commonly used in commercial distribution networks, residential communities, rural electrification projects, and industrial factories that require reliable medium-voltage to low-voltage power conversion.
We can provide datasheets, drawings, nameplate information, routine test reports, certificate files, and quotation documents to support technical review and procurement.

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