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330kv Power Main Transformer

  • Classification: Power Transformer
  • Number of Views: 142次
  • Date of issue: 2026-06-03 09:52:15


  • Product overview:The 330kV three-phase oil-immersed power transformer is professionally developed for high-voltage long-distance power transmission and large-scale energy allocation scenarios, catering to the upgrading demands of modern ultra-high voltage power grids worldwide. It is extensively applied in national main power grids, large regional power substations, heavy manufacturing industrial bases, wind farm and solar power generation clusters as well as energy storage power stations. The equipment realizes efficient voltage conversion, effectively reducing power loss during power transportation and guaranteeing continuous, safe and stable power supply for power systems.
    Maximum Capacity: Up to 300MVA
    Voltage Class: 330kV (Supports personalized customized parameters according to project demands)
    Efficiency Rate: The peak operation efficiency is over 98.5%, fully conforming to international environmental protection standards and global energy conservation design specifications for power equipment.
    Design Lifespan: Adopts high-quality insulating materials and optimized internal structure, supporting more than 35 years of stable operation with low failure rate and simple daily maintenance.
    Fastest Delivery: The conventional production and delivery cycle is 90 days; to satisfy urgent construction needs of key power projects, we provide an expedited delivery solution with a lead time of only 70 days.

Product advantages

Technical Standards & Global Certifications
To guarantee seamless integration into international high-voltage power transmission markets, our 330kV power transformers are professionally engineered, manufactured and tested in strict accordance with worldwide authoritative industrial benchmarks:

International Standards: Fully compliant with GB, IEC, GOST, EN, NF, and ANSI/IEEE industrial specifications. We support customized structural design and parameter optimization to fully adapt to local power grid operation rules and special grid access requirements of different countries and regions.

Product Certifications: Authoritatively certified by ISO, CE, IEC, SABS, COC, CSA, and UL. All certification indicators meet international high-voltage equipment access thresholds, delivering guaranteed world-class operational safety, stable quality and outstanding comprehensive performance.
 

Key Product Advantages

Superior Grid Adaptability & Stability: Validated by massive long-term field operational data in large-scale power transmission scenarios. The transformer maintains stable output under extreme working conditions such as extreme temperature differences, high-altitude low-pressure environments, heavy dust and salt fog corrosion, and effectively cope with frequent load fluctuations brought by large-scale grid-connected renewable energy.

Eco-Friendly & Low-Carbon Sustainable: Optional FR3 natural ester biodegradable insulating oil and environment-friendly low-loss iron core materials are provided. Most core structural components support secondary recycling. The product effectively cuts down comprehensive carbon emissions of power stations, perfectly matching global "Dual Carbon" goals and ESG sustainable development strategic layout.

Wide Global Market Layout: Our 330kV high-voltage transformers have been put into stable operation in more than 60 countries and regions worldwide. The products are widely applied in long-distance power transmission, regional power grid upgrading and new energy power delivery projects in the United Kingdom, South Africa, Malaysia, Indonesia, Australia, Middle East and Central Asia, solving power supply bottlenecks for multiple high-demand markets.
 

Why Choose Hengfengshuai Electric for Your 330kV Projects?
For large-scale high-voltage power transmission and transformation infrastructure projects, selecting a reliable transformer manufacturing partner is the core premise to ensure the smooth progress of the project and long-term stable grid operation. The following advantages explain why numerous global EPC contractors, power utilities and energy groups choose to cooperate with Hengfengshuai Electric for 330kV transformer projects:

Tier-1 Engineering & Customized R&D Solutions
We adhere to differentiated customized development instead of standardized generic design. Our senior R&D and engineering team formulates exclusive manufacturing solutions based on your project’s actual operating environment, covering high-altitude plateau areas, ultra-high temperature tropical zones, freezing cold regions and heavily corrosive coastal industrial areas, to eliminate environmental adaptation risks for equipment.

Optimized Delivery Cycle & Efficient Supply Chain
Affected by complex production processes and raw material scheduling, the average delivery cycle of mainstream 330kV transformers in the industry ranges from 8 to 14 months. Relying on self-owned raw material factories and integrated intelligent production workshops, Hengfengshuai Electric shortens the delivery cycle to a minimum of 75 days, greatly accelerating your project construction progress and helping you seize market opportunities in advance.

Rigorous Quality Control & Full-Coverage Defect-Free Testing
All 330kV transformers undergo complete and rigorous Factory Acceptance Testing (FAT) in our ultra-high voltage professional laboratory. The testing items cover lightning impulse voltage test, switching impulse test, partial discharge detection, temperature rise test and insulation performance verification. We eliminate potential defects from the source to ensure one-time successful commissioning of the equipment on site.

Global Service & Full Lifecycle Technical Support
We provide one-stop full lifecycle supporting services including early project scheme design, cross-border professional logistics, on-site installation & commissioning guidance, regular equipment maintenance and fault emergency response. Our global technical service team offers 24/7 online and offline support, ensuring the long-term efficient and stable operation of your 330kV power transformers.


Product parameters


Ordering instructions
- Main parameters of transformer (voltage, capacity, loss and other main parameters)
- Transformer operating environment (altitude, temperature, humidity, location, etc.)
- Other customization requirements (tap switch, color, oil pillow, etc.)
- The minimum order quantity is 1 sets
- Normal delivery period of 90 days, worldwide fast delivery
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Qingdao Hengfengshuai Electric Co., Ltd      

WhatsApp: +86 152 6625 8801     

Address: No. 251, Xingyang Road, Chengyang District, Qingdao, Shandong

Email: hfs@hengfengshuai.com      

Customer service email: service@hengfengshuai.com      

website:https://www.hengfengshuai.com

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