Transformer Solutions for Different Countries
Power systems vary by country, from distribution voltages to project specifications. Explore market-specific transformer considerations and identify suitable equipment for utility, industrial and infrastructure applications.
Country-Specific Transformer Solutions
Start with the countries below. Each market has distinct distribution practices, grid arrangements and project requirements. Explore nine target markets and their reference voltage levels. Individual country guides will be linked here as they are completed.
Ukraine
Distribution grid renewal, substations and industrial power supply.
Ethiopia
Distribution network expansion and industrial infrastructure.
Vietnam
Industrial facilities and medium-voltage distribution.
Thailand
Industrial distribution, utility connections and substations.
Myanmar
Utility distribution, local substations and industrial electricity supply.
Uzbekistan
Distribution network upgrades and utility substation applications.
Russia
Industrial power systems and medium-voltage distribution.
Nigeria
Distribution infrastructure, industrial facilities and substations.
Indonesia
20 kV distribution and industrial power infrastructure.
Voltage levels shown are preliminary planning references from the market worksheet, not guaranteed equipment ratings. Confirm applicable utility standards, grid connection requirements and transformer specifications before selecting equipment.
Reference Grid Voltage Levels by Country
The table summarizes voltage levels relevant to transformer project planning in these nine markets. Actual equipment ratings and design criteria depend on the utility, connection point and project specification.
| Country | Distribution focus | Other referenced levels | Higher-voltage networks |
|---|---|---|---|
| Ukraine | 10, 20 kV | 6, 35 kV | 110, 150, 220, 330, 750 kV |
| Ethiopia | 15, 33 kV | 6, 45*, 66 kV | 132, 230, 400, 500 kV |
| Vietnam | 22 kV | 6, 10, 15, 35 kV | 110, 220, 500 kV |
| Thailand | 22, 24* kV | 12, 33 kV | 69, 115, 230, 500 kV |
| Myanmar | 11, 33 kV | 6.6, 66 kV | 132, 230, 500 kV |
| Uzbekistan | 10 kV | 6, 35 kV | 110, 220, 500 kV |
| Russia | 10 kV | 6, 20, 35 kV | 110, 150, 220, 330, 500, 750 kV |
| Nigeria | 11, 33 kV | — | 132, 330 kV |
| Indonesia | 20 กิโลโวลต์ | 6, 10 kV (local systems) | 70, 150, 275, 500 kV |
Planning reference only. Values in this table derive from the initial market worksheet and should be individually validated. Nominal network voltage, equipment highest voltage, transformer voltage ratio and local utility standards are not interchangeable. These entries do not represent DHDL’s manufacturing scope or certifications. *Especially verify category distinctions and project applicability before publication.
Transformer Solutions for Different Project Needs
The right transformer depends on voltage ratio, rated power, installation environment and operating conditions. Explore the DHDL transformer product range.
Oil-Immersed Transformers
Commonly considered for outdoor distribution, substations and a range of utility and industrial installations.
Explore Transformer Products →หม้อแปลงแบบแห้ง
Often evaluated for indoor power distribution and projects with particular installation or fire-safety considerations.
Explore Transformer Products →Power Transformers
Equipment selection for utility substations, industrial facilities and higher-capacity power networks.
Explore Transformer Products →What to Confirm Before Selecting a Transformer
Country is a starting point, but procurement decisions should be based on the connection scheme and written project requirements.
Rated Voltages
Confirm primary and secondary voltage, system voltage class and frequency.
Capacity & Losses
Define kVA/MVA, load profile, efficiency targets and impedance.
Installation Environment
Review indoor/outdoor placement, temperature, altitude and cooling requirements.
Standards & Documentation
Check the utility specification, applicable standards, testing and submittals.
Manufacturing & Customization for Project Requirements
Share your single-line diagram, voltage ratio, rated capacity and applicable specification. DHDL can review product configuration requirements and discuss suitable transformer options for your project.
Final technical scope, testing documentation and available configurations are subject to engineering confirmation and the agreed product specification.
Frequently Asked Questions
Do transformer voltage requirements differ between countries?
Yes. Nominal network voltage levels, connection practices and project standards vary between countries and even between utility networks within a country. Confirm the applicable local network and project documents before specifying a transformer.
Can I select a transformer based on country and voltage alone?
No. Voltage is only one part of the specification. Rated capacity, frequency, cooling method, impedance, connection group, loss limits, installation environment and applicable standards may also affect the selection.
What information should I provide to request a quotation?
Please share the destination country, project application, primary/secondary voltage, rated capacity, quantity, frequency and any available specification or single-line diagram. This supports a more focused technical review.
Do the voltage reference tables guarantee compatibility with local utilities?
No. They are initial research references. Any proposed transformer must be checked against the local utility’s latest requirements and the project’s approved technical specifications.
Where can I find DHDL’s transformer products?
Visit the Transformers product category to browse currently listed transformer options. Contact DHDL with your specification to discuss an application-specific solution.
Need Transformers for a Specific Country or Project?
Tell us your destination country, voltage ratio, capacity, quantity and application. Our team can review your requirements and discuss suitable transformer options.