Myanmar 230kV Transformer in 2025: A New Choice for PV Power Plant Support

Writer： Hengfeng you electric Time：2025-12-17 views：times

With Myanmar's electricity demand surging in 2025, the photovoltaic (PV) industry has become a key breakthrough, driving strong demand for 230kV transformers. Hengfengyou Electric's 230kV transformers comply with Myanmar standards and IEC certification, are adapted to the local hot and humid climate, have successfully supported the Yangon PV project, and provide reliable support for the upgrading of Myanmar's power transmission and distribution grid.

I.Myanmar 230kV Transformer: The Demand Gap Under the PV Surge
Myanmar faces prominent electricity shortages, with only 50% of the population having stable access to electricity. The actual average daily power generation is merely 2,200 MW, far below the theoretical installed capacity of 6,520 MW. To address this challenge, Myanmar has identified the PV industry as a core development focus, planning to achieve an 11% share for renewable energy (excluding hydropower) by 2030. Currently, 8 centralized PV power plants are connected to the main grid, with another 13 solar power plants under construction.

Grid upgrading is a crucial support for the implementation of the PV industry. Myanmar's current main transmission voltage is primarily 230 kV. Although a 500 kV line connecting the central and southern regions has been constructed, the supporting substations are scheduled for completion in 2026, making 230kV transformers the core equipment for transmission and distribution in the short term. Furthermore, following the RCEP's entry into force for Myanmar, import tariffs for transformers have been reduced to 0%, further stimulating market demand. It is projected that the market size for 230kV transformers in Myanmar will grow by 35% year-on-year in 2025, with demand for PV support accounting for over 40%.

II.Myanmar 230kV Transformer: Analysis of Key Customer Requirements
Myanmar customers' demand for 230kV transformers centers on environmental adaptability and operational stability. Climatically, Myanmar has a tropical monsoon climate, with humidity during the rainy season reaching up to 90% and temperatures often exceeding 35°C. This necessitates that transformers possess moisture-proof, heat-resistant, and anti-corrosion performance, with an insulation class of Grade A or higher.

Application scenarios present differentiated demands: 230kV transformers supporting PV power plants require a wide voltage regulation range to adapt to PV output fluctuations. In contrast, transmission and transformation projects emphasize overload capability, needing to meet requirements for operation at 120% of rated load for 2 hours. For instance, the Beinyinn substation project undertaken by China Energy Engineering Group Zhejiang Electric Power Design Institute explicitly requires the transformer to support load distribution for 10 outgoing 66 kV cable circuits. Additionally, local power authorities require equipment to have a Mean Time Between Failures (MTBF) of not less than 18,000 hours, with operational and maintenance costs at least 15% lower than comparable international products.

III.Myanmar 230kV Transformer: Certification Norms and Access Requirements
The Myanmar transformer market has established clear access standards, primarily revolving around international certification and localization requirements. Firstly, products must pass certification under the IEC 60076 standard, involving 12 mandatory tests including insulation tests and temperature rise tests. For products supporting PV applications, additional compliance with the IEC 61724 standard for PV system performance is required.

Hengfengyou Electric has fully met these requirements. Its 230kV transformers not only hold full IEC certification but have also undergone special testing for hot and humid environments based on Myanmar's climatic characteristics, obtaining equipment access certification issued by Myanmar's Ministry of Electric Power. The company's service center established in Yangon can provide on-site operation and maintenance support within 72 hours, meeting the implicit requirement for localized service in Myanmar's power projects and clearing obstacles for rapid project implementation.

IV.Myanmar 230kV Transformer: Hengfengyou's Technological Breakthroughs and Delivery Assurance
Addressing Myanmar's market needs, Hengfengyou Electric has achieved technological breakthroughs in three key areas: Firstly, adopting Nomex paper insulation material to replace traditional insulating paper, combined with vacuum drying technology, improving the transformer's moisture and heat resistance by 40%, successfully passing simulated Myanmar rainy season environmental tests. Secondly, developing an intelligent voltage regulation device, expanding the voltage adjustment range to ±15% to adapt to PV output fluctuations. Thirdly, optimizing the cooling structure by adopting a combined design of sheet radiators and forced air cooling with fans, ensuring stable operation in high-temperature environments.

In terms of delivery assurance, Hengfengyou has established a full-chain service system covering "production-logistics-installation." Leveraging the benefits of the RCEP policy, customs clearance is expedited through the Dongguan Chang'an Customs, reducing the delivery cycle to 45 days. A bilingual (Chinese-Myanmar) technical team is assembled to participate fully in equipment installation and commissioning. In the recently completed 100 MW Yangon PV power plant project, the team commissioned three 230kV transformers in just 15 days, 10 days ahead of the client's expectations, with power supply stability receiving high recognition from local enterprises.

V.Conclusion: New Opportunities in the Transformer Market Under China-Myanmar Cooperation
In 2025, Myanmar's power market is at a critical stage of transformation. Driven by the dual forces of the PV industry surge and grid upgrading, 230kV transformers have become essential equipment. Hengfengyou Electric has successfully captured market opportunities by leveraging product quality compliant with IEC standards, technological optimizations adapted to the local climate, and full-chain service capabilities.

As China-Myanmar energy cooperation continues to deepen, Myanmar's Ministry of Electric Power has explicitly identified China as its primary partner, with 70% of cross-border power project investments originating from China. In the future, Hengfengyou Electric will continue to deepen its presence in the Myanmar market, planning to establish an assembly factory in Mandalay by 2026 to further reduce production costs, providing more cost-effective 230kV transformer solutions for Myanmar's energy structure transformation, and contributing to China-Myanmar energy interconnection.