Recently, three SFPZ18-180000/220 220kV main transformers manufactured by CEEG for the core equipment of the Vaken Environmental Project have passed a comprehensive and rigorous assessment. Having successfully completed all tests, they are now ready to cross oceans and mountains to deliver reliable power to this land in southeastern Africa.
In the hot and humid tropical environment, transformers operate under extreme conditions akin to carrying heavy loads in a sauna. CEEG's engineers developed tailored solutions for these three units from the outset:
From short-circuit withstand tests to gas relay gas-collection tests, the transformers passed 36 test items in total — including 9 demanding type tests, 25 essential routine tests, and 2 targeted special tests — with every parameter exceeding standard requirements. Notably, 22 of these tests were witnessed on-site by the client, allowing direct verification of results and ensuring seamless "plug-and-play" operation upon delivery and commissioning.
Specifically adapted for tropical conditions below 1,000 meters altitude, the transformers are equipped with an advanced "intelligent control system": an innovative core structure combined with seven-stage temperature control technology and high-efficiency forced-air coolers, forming a precise thermal management system. Even under sustained high ambient temperatures, component temperatures remain firmly controlled, ensuring long-term reliable operation.
Far from the stereotype of rugged equipment being bulky, these transformers achieve a more compact and aesthetically refined design through optimized structure and cooling technology while maintaining superior performance. More importantly, losses have been significantly reduced, easily meeting the latest GB 20052-2024 energy efficiency standard, delivering tangible operating cost savings for the customer.
Proven cooling and structural technologies also enable inherently low noise and vibration levels — a built-in "quiet mode." While safeguarding power stability, the transformers minimize environmental impact, making them truly considerate equipment.
The delivery of these three transformers is more than just a product handover; it provides another practical reference for transformer selection in tropical regions. From specialized design to comprehensive validation, every detail reflects CEEG's deep technical expertise in medium- and high-voltage transformers — not theoretical concepts, but proven solutions that withstand real-world environmental challenges.
Choosing them means selecting a rigorously validated technical solution, a robust quality assurance system, and full-life-cycle support from a professional technical service team. For power projects operating in harsh environments, such partners provide genuine peace of mind.
From CEEG's factories in China to the project site in Mozambique, the journey spans not only distance but also CEEG's commitment written through foresight, innovation, and responsibility. In the future, these transformers will stand vigil under the African sun, while CEEG continues to deliver more reliable "Chinese power" to the world.
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