Medium-voltage transformers, grid equipment and solar solutions

Distribution transformer range

Oil-immersed transformers.

Low-loss distribution transformers for dependable voltage transformation in industrial facilities, commercial developments, utility networks, and ground-mounted substations.

20 / 0.4 kV 25–2000 kVA Oil immersed Low-loss design Iran Transfo
20 kV Medium-voltage network class
Three-phase oil-immersed distribution transformer
Up to 98.4% Listed full-load efficiency

Built for everyday distribution

Reliable transformation from medium to low voltage.

Oil-immersed distribution transformers are among the most widely used assets in electrical networks. They step medium voltage down to usable low-voltage levels and provide robust service across factories, buildings, workshops, infrastructure projects, and urban or rural distribution systems.

The range shown below covers general technical data for Iran Transfo low-loss transformers in the 20 kV class. Pooya Electric can support product selection, current pricing, availability, and delivery planning.

Suitable for 20 kV distribution networks
Ratings for light to heavy-duty projects
Stable performance and practical maintenance
Support for selection and procurement
25–2000 kVA A broad rating range for commercial, industrial, and utility distribution projects.
20 / 0.4 kV Standard MV-to-LV distribution configuration.
Yzn5 / Dyn5 Vector groups listed across the available ratings.

20 kV low-loss range

Technical specifications.

General technical data for oil-immersed distribution transformers from 25 to 2000 kVA. On smaller screens, swipe horizontally to view all columns.

Oil-Immersed Distribution Transformer Data 20 kV primary · 0.4 kV secondary
Rated Power
(1)
Voltage
(1)
HV Taps
(1)
Vector
Group (1)
Rated
Impedance
Losses Noise
Level
Full-Load Efficiency
(Min), P.F. = 0.8
Total Weight
(Max)
HV LV No-Load Load (2)
[kVA][kV][kV][%][%] [W][W][dB][%][kg]
25200.4±1×4Yzn541107004895.72375
50200.4±1×4Yzn5414511005096.76525
75200.4±1×4Yzn5420314255297.02575
100200.4±1×4Yzn5426017505497.30660
125200.4±1×4Yzn5431020005597.55810
160200.4±1×4Yzn5437523505697.73905
200200.4±1×4Yzn5444527605897.871005
250200.4±2×2.5Dyn5653032506097.951185
315200.4±2×2.5Dyn56625385061.598.101355
400200.4±2×2.5Dyn5675046006398.181595
500200.4±2×2.5Dyn5687554506498.311870
630200.4±2×2.5Dyn5694067506598.372225
800200.4±2×2.5Dyn561150850066.498.382705
1000200.4±2×2.5Dyn561400105006898.413255
1250200.4±2×2.5Dyn5617301320069.2598.383910
1600200.4±2×2.5Dyn562200170007198.394725
2000200.4±2×2.5Dyn5626452120072.498.405685
Technical values are reproduced from the original page and should be confirmed for the selected model.
Transformer accessories, enclosure details, and final dimensions may vary by rating and order configuration.
Contact Pooya Electric for datasheets, availability, delivery schedule, and a formal quotation.

Where they perform

Designed for real distribution networks.

From utility substations to industrial facilities, oil-immersed transformers remain a proven choice where long service life, stable thermal performance, and straightforward procurement matter.

01

Ground-Mounted & Pole-Mounted Substations

Voltage transformation for local distribution points in urban, rural, and infrastructure networks.

02

Industrial Facilities

Reliable power supply for factories, production lines, warehouses, workshops, and process equipment.

03

Commercial & Residential Projects

Distribution transformers for large buildings, complexes, shopping centers, and development projects.

04

Utility Distribution Networks

Standardized transformer ratings for network expansion, replacement, and demand growth projects.

Pooya Electric support

From rating selection to delivery.

Product procurement is easier when technical and commercial decisions are handled together. Our team can help you move from project requirements to a clear, order-ready quotation.

STEP 01

Requirement Review

Share the required rating, primary voltage, application, quantity, and project schedule.

STEP 02

Product Selection

We help identify a suitable transformer rating and general configuration for the project.

STEP 03

Price & Availability

Receive current commercial terms, stock information, and the expected delivery timeline.

STEP 04

Proforma & Supply

Finalize the order with a formal proforma invoice and coordinated delivery arrangements.

Contact transformer sales

Need a current price or technical confirmation?

Send your required kVA rating and project details, or call directly for product selection, availability, and a proforma invoice.