Power System 10000kVA, 34.5kV/6.6kV, 50Hz/60Hz
Certifications IEC 62271-200, IEC 694, GB3906, DIN VDE 0670
The Huajidian 34.5 kV 10000 kVA power transformer is a core power transmission and distribution device connecting the power grid and large-scale industrial production equipment. It is specifically optimized for harsh operating conditions such as harmonic interference and current surges in equipment like medium-frequency furnaces and electric arc furnaces, solving the pain points of traditional transformers such as high energy consumption, weak shock resistance, and easy aging.
The 34.5 kV 10000 kVA power transformer uses high-permeability cold-rolled grain-oriented silicon steel sheets, combined with an optimized magnetic circuit structure, significantly reducing long-term no-load and load losses, effectively lowering enterprise electricity costs, shortening the investment payback period, and aligning with the trend of green and low-carbon industrial production.
The equipment possesses excellent overload capacity and short-circuit resistance, with a short-circuit impedance ≥10%, easily handling sudden large current surges and impact loads in industrial production. It can operate continuously and stably in harsh environments with high harmonics, such as smelting and hot processing, avoiding production downtime caused by equipment failure.
Equipped with a corrugated oil tank or plate radiator, it constructs a highly efficient oil-immersed self-cooling/oil-immersed air-cooling circulating heat dissipation system, offering high heat dissipation efficiency and a compact structure. The fully sealed structure isolates air and moisture, preventing insulating oil aging and internal component corrosion, significantly extending equipment lifespan and achieving long-term maintenance-free operation, reducing subsequent maintenance costs for enterprises.
Utilizing advanced core vibration damping technology and optimized noise reduction structure, the equipment's operating noise is far below industry standards. It can be installed in factory areas, office areas, and residential areas, causing no noise pollution and fully meeting the environmental acceptance requirements of modern factories.
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Parameter Item |
Detailed Technical Indicators |
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Product Model |
ZS-10000/35 (customizable) |
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Rated Capacity |
10000 kVA (10 MVA) |
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High Voltage Side Voltage |
34.5 kV (optional ±2×2.5% / ±5% tap range) |
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Low Voltage Side Voltage |
Customized (10kV, 6.6kV and other specifications) |
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Cooling Method |
ONAN (oil immersed self cooling) / ONAF (oil immersed air-cooled) |
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Connection Group |
Dyn11, YNd11, Dy11 or customized |
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Rated Frequency |
50 Hz / 60 Hz |
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Short Circuit Impedance |
≥10% (excellent short-circuit resistance) |
Customization Notes: In addition to standard parameters, Huajidian supports customization for special voltage levels, non-standard capacities, and special protection levels to meet the power supply needs of various special industrial scenarios.
1. Industrial Smelting: Provides stable rectified power for high-harmonic equipment such as medium-frequency induction heating furnaces and electric arc furnaces;
2. Power Grid Distribution: Serves as the main transformer in 35kV substations, achieving efficient and stable power distribution;
3. Heavy Industry Manufacturing: Provides continuous power supply for high-power production lines in large machining workshops and chemical plants;
4. Infrastructure Expansion: Suitable for power upgrade and expansion projects in airports, ports, and large commercial complexes.
In 2024, Huajidian provided six customized 34.5 kV 10000 kVA power transformers to a local metal smelting company in Indonesia. The project involved multiple electric arc furnaces, characterized by strong harmonic interference and frequent load fluctuations. The customized equipment featured optimized harmonic and overload resistance structures, achieving 12 months of continuous operation with zero failures. Compared to the original equipment, no-load losses were reduced by 18%, significantly reducing the company's electricity costs and ensuring uninterrupted operation of the smelting production line.
Q1: What are the unique advantages of this 34.5 kV 10000 kVA power transformer in high-harmonic industrial scenarios?
A1: This equipment is specifically optimized and upgraded for high-harmonic operating conditions such as medium-frequency furnaces and electric arc furnaces. It uses high-quality silicon steel sheets and an improved magnetic circuit structure, effectively resisting harmonic interference. It also features a high overload design, capable of withstanding instantaneous high-current surges, avoiding equipment overheating, increased losses, and shutdowns caused by harmonics, ensuring long-term stable operation of industrial production lines.
Q2: Does the product support parameter customization? What guarantees are provided for customized equipment delivery?
A2: Full-scenario personalized customization is supported. Low-voltage settings, wiring groups, cooling methods, protection levels, and non-standard capacities can be adjusted as needed. Huajidian possesses complete production qualifications, and the product undergoes full testing and traceability. Large transformers are professionally packaged in wooden crates and utilize heavy-duty logistics solutions, supporting sea-land combined transport to ensure safe and timely delivery to the project site.
Q3: What is the service life of the 34.5 kV 10000 kVA power transformer?
A3：Are the subsequent maintenance costs high? A3: The equipment adopts an integrated, fully sealed structure, isolating it from external moisture and air, preventing insulating oil aging and internal corrosion. Under standard operating conditions, its service life can reach over 20 years. The equipment requires minimal maintenance in the later stages, significantly reducing labor costs for maintenance and parts replacement, making its overall cost-effectiveness far superior to traditional transformers.
Huajidian provides one-stop service including customized solutions, manufacturing, precision testing, safe transportation, and after-sales maintenance. Our professional technical team can provide customized technical solutions and the latest preferential quotations for various project scenarios. Global customers are welcome to inquire and cooperate!
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Room 2106, West End, Guangfeng Building, Ouhai District, Wenzhou City, Zhejiang Province, China
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