25 kVA Oil-Immersed Transformer
A compact distribution unit for light loads, small workshops, rural networks, and localized utility applications.
Distribution transformer range
Low-loss distribution transformers for dependable voltage transformation in industrial facilities, commercial developments, utility networks, and ground-mounted substations.
Built for everyday distribution
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.
Popular ratings
These ratings cover common needs ranging from smaller local loads to industrial halls and larger distribution projects. Contact sales to confirm the latest price, stock status, and delivery time.
A compact distribution unit for light loads, small workshops, rural networks, and localized utility applications.
A practical choice for smaller commercial projects, workshops, and general 20/0.4 kV distribution duties.
A commonly selected rating for building services, industrial loads, and standard distribution network extensions.
A high-demand option for commercial buildings, industrial facilities, and medium-sized electrical distribution projects.
Designed for growing industrial and commercial loads where dependable output and efficient operation are essential.
A versatile rating for factories, industrial halls, residential complexes, and higher-capacity distribution applications.
Prices are translated from the original page and may not reflect current market conditions. Request an updated proforma invoice before purchase.
20 kV low-loss range
General technical data for oil-immersed distribution transformers from 25 to 2000 kVA. On smaller screens, swipe horizontally to view all columns.
| 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] | |
| 25 | 20 | 0.4 | ±1×4 | Yzn5 | 4 | 110 | 700 | 48 | 95.72 | 375 |
| 50 | 20 | 0.4 | ±1×4 | Yzn5 | 4 | 145 | 1100 | 50 | 96.76 | 525 |
| 75 | 20 | 0.4 | ±1×4 | Yzn5 | 4 | 203 | 1425 | 52 | 97.02 | 575 |
| 100 | 20 | 0.4 | ±1×4 | Yzn5 | 4 | 260 | 1750 | 54 | 97.30 | 660 |
| 125 | 20 | 0.4 | ±1×4 | Yzn5 | 4 | 310 | 2000 | 55 | 97.55 | 810 |
| 160 | 20 | 0.4 | ±1×4 | Yzn5 | 4 | 375 | 2350 | 56 | 97.73 | 905 |
| 200 | 20 | 0.4 | ±1×4 | Yzn5 | 4 | 445 | 2760 | 58 | 97.87 | 1005 |
| 250 | 20 | 0.4 | ±2×2.5 | Dyn5 | 6 | 530 | 3250 | 60 | 97.95 | 1185 |
| 315 | 20 | 0.4 | ±2×2.5 | Dyn5 | 6 | 625 | 3850 | 61.5 | 98.10 | 1355 |
| 400 | 20 | 0.4 | ±2×2.5 | Dyn5 | 6 | 750 | 4600 | 63 | 98.18 | 1595 |
| 500 | 20 | 0.4 | ±2×2.5 | Dyn5 | 6 | 875 | 5450 | 64 | 98.31 | 1870 |
| 630 | 20 | 0.4 | ±2×2.5 | Dyn5 | 6 | 940 | 6750 | 65 | 98.37 | 2225 |
| 800 | 20 | 0.4 | ±2×2.5 | Dyn5 | 6 | 1150 | 8500 | 66.4 | 98.38 | 2705 |
| 1000 | 20 | 0.4 | ±2×2.5 | Dyn5 | 6 | 1400 | 10500 | 68 | 98.41 | 3255 |
| 1250 | 20 | 0.4 | ±2×2.5 | Dyn5 | 6 | 1730 | 13200 | 69.25 | 98.38 | 3910 |
| 1600 | 20 | 0.4 | ±2×2.5 | Dyn5 | 6 | 2200 | 17000 | 71 | 98.39 | 4725 |
| 2000 | 20 | 0.4 | ±2×2.5 | Dyn5 | 6 | 2645 | 21200 | 72.4 | 98.40 | 5685 |
Where they perform
From utility substations to industrial facilities, oil-immersed transformers remain a proven choice where long service life, stable thermal performance, and straightforward procurement matter.
Voltage transformation for local distribution points in urban, rural, and infrastructure networks.
Reliable power supply for factories, production lines, warehouses, workshops, and process equipment.
Distribution transformers for large buildings, complexes, shopping centers, and development projects.
Standardized transformer ratings for network expansion, replacement, and demand growth projects.
Pooya Electric support
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.
Share the required rating, primary voltage, application, quantity, and project schedule.
We help identify a suitable transformer rating and general configuration for the project.
Receive current commercial terms, stock information, and the expected delivery timeline.
Finalize the order with a formal proforma invoice and coordinated delivery arrangements.
Contact transformer sales
Send your required kVA rating and project details, or call directly for product selection, availability, and a proforma invoice.