35 kv power transformers are crucial hubs connecting high voltage transmission and medium and low voltage distribution, playing a vital "bridging" role in the distribution network. They serve as main transformers in 110kV/35kV substations, enabling regional voltage reduction and distribution, and also as 35kV/10kV (or 6.6kV/0.4kV) distribution transformers, directly supplying power to end users. These products utilize high quality grain oriented silicon steel sheets, oxygen free copper windings, and a fully sealed oil tank structure. Manufactured using advanced vacuum oil filling and rigorous insulation processes, they offer advantages such as low loss, low noise, high reliability, and long lifespan.
35kV transformers are widely used in urban and rural power distribution networks, industrial parks, new energy power plants, oil and gas fields, mines, and large commercial complexes. They represent one of the voltage levels with the widest coverage and most diverse operating scenarios in power distribution networks. The products are specifically optimized for typical operating conditions in rural power grids, such as long lines, large load fluctuations, and frequent lightning strikes. They possess excellent short circuit impact resistance and lightning strike tolerance, meeting the operational requirements of frequent switching and fault reclosing of distribution network branch lines. The products strictly adhere to international and national authoritative standards such as IEC, GB, ANSI, IEEE, and JIS, meet Level 1 energy efficiency requirements, and have passed a full set of type tests and factory tests.
• Fully sealed structure, leak proof, maintenance free, and ensures stable and reliable long term operation.
• Oil immersed insulation and heat dissipation, strong overload capacity, and adaptable to harsh outdoor environments.
• Low loss and high efficiency, significantly reducing operating energy consumption and operating costs.
• Compact structure, small footprint, easy installation, and strong adaptability.
• High cost effectiveness, long service life, and lower overall operation and maintenance costs.
• Short circuit resistant and impact resistant, meeting the requirements for long term continuous load operation.
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35kV |
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10.5kV,10kV,6.6kV,0.4kV |
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50Hz / 60Hz |
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1250,1600,2000,2500,3150,4000,5000,6300,8000,10000(Customization available upon request) |
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Dyn11,Yyn0,Yd11 |
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±2×2.5%,±4×2.5% |
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4%–10% (customized according to capacity and system requirements) |
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GB 1094,GB/T 6451,IEC 60076,ANSI,IEEE,JIS |
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25# and 45# transformer oil |
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30℃-+45℃ |
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<=1000m (High altitude version available upon request) |
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Oil top temperature rise <=55K, average winding temperature rise <=65K |
1. How long can an oil immersed transformer last?
With proper maintenance, typical service life is 30–40 years. Oil regeneration and gasket replacement can extend it further.
2. What capacity and voltage ranges are available?
Capacities from 50 kVA up to 200,000 kVA (200 MVA). Primary voltage up to 220 kV, secondary voltage from 0.4 kV to 35 kV. Custom designs available.
3. Can I install an oil immersed transformer at high altitude (above 1000m)?
Yes, but derating is required. Cooling efficiency drops at high altitude. Always specify altitude when ordering so we can adjust design.
Populære tags: 35 kv power transformer, China 35 kv power transformer manufacturers, suppliers, factory
