6300kVA Three-phase Oil-immersed Power Transformer
Capacity: 6300kVA
Delivery Year: 2022
Country: South Korea
Key Advantages:
Efficient Heat Dissipation: Oil-filled power transformer structure with a circulating cooling system reduces temperature rise by 15% below industry standards under continuous full-load operation. High Reliability: Certified with IP55 protection, ideal for South Korea’s rainy and humid climate, ensuring stable performance of the Power Transformer in extreme environments. Long Lifespan & Easy Maintenance: Insulating oil can be filtered and regenerated periodically, lowering maintenance costs by 30% compared to dry-type transformers for this Three-phase Oil-immersed Power Transformer.
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Henan GNEE Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of 6300kva three-phase oil-immersed power transformer in China. If you're going to buy customized 6300kva three-phase oil-immersed power transformer made in China, welcome to get quotation from our factory. Quality products and reasonable price are available.
Product Introduction of Oil-immersed Power Transformer
The 6300kVA Three-phase Oil-immersed Power Transformer is engineered for industrial and grid systems, featuring a fully sealed oil-immersed design. Integrated with high-permeability silicon steel cores and low-loss winding technology, it achieves over 98.5% energy efficiency. As a classic oil-filled power transformer, its insulation oil circulation system rapidly absorbs and disperses heat, guaranteeing long-term stability under high-voltage and heavy-load conditions.
This Power Transformer supports global voltage standards (10kV-35kV) and bidirectional voltage regulation, making it suitable for power plants, substations, and large-scale factories. Compared to similar products, this Three-phase Oil-immersed Power Transformer simplifies on-site installation through modular tank design while complying with UL, IEC, and other international certifications. Renowned for durability and adaptability, the oil-immersed power transformer has become a cornerstone of heavy-industrial energy infrastructure.
Advantages Over Dry-Type Transformers
(1) Superior Thermal Management
The Oil-immersed Power Transformer utilizes insulating oil circulation for active cooling, outperforming dry-type transformers' passive air convection. Under equivalent loads, its internal hot-spot temperatures are 20%-30% lower, significantly extending insulation lifespan.
(2) Enhanced Environmental Resistance
The sealed tank of this Three-phase Oil-immersed Power Transformer blocks dust, moisture, and corrosive gases, making it ideal for coastal regions (e.g., South Korea), monsoon climates, or chemical plants. Dry-type transformers require additional protective enclosures, raising costs by 15%-20%.
(3) Reduced Maintenance Costs
The oil-filled power transformer's self-regenerating insulation oil can be filtered and reused, with winding inspection intervals of 10-15 years. In contrast, dry-type transformers' epoxy-resin-coated windings demand full replacement upon aging, increasing lifecycle costs by over 40%.
(4) Exceptional Overload Capacity
During short-term overloads (e.g., grid surges), the oil-immersed power transformer's thermal buffering effect allows 150% rated load capacity for up to 2 hours, whereas dry-type units sustain only 30 minutes.
Products parameter
| Item | Capacity | No load | Load loss (75oC) | Impedance | Dimensions(mm) | Total weight | Oil | ||
|---|---|---|---|---|---|---|---|---|---|
| kVA | Watt | Watt | % | Height | Length | Width | kg | Liter | |
| 1 | 50 | 160 | 950 | 4 | 1,100 | 1,000 | 700 | 500 | 135 |
| 2 | 100 | 250 | 1,550 | 4 | 1,250 | 1,050 | 750 | 750 | 200 |
| 3 | 160 | 360 | 2,100 | 4 | 1,300 | 1,150 | 750 | 990 | 250 |
| 4 | 250 | 500 | 2,950 | 4 | 1,350 | 1,200 | 750 | 1300 | 300 |
| 5 | 315 | 800 | 3,900 | 4 | 1,400 | 1,400 | 800 | 1300 | 350 |
| 6 | 400 | 960 | 4,600 | 4 | 1,400 | 1,500 | 850 | 1550 | 380 |
| 7 | 500 | 1,150 | 5,500 | 4 | 1,500 | 1,550 | 900 | 1750 | 430 |
| 8 | 630 | 1,350 | 6,500 | 4 | 1,550 | 1,600 | 850 | 2,150 | 450 |
| 9 | 800 | 1,600 | 11,000 | 6 | 1,600 | 1,800 | 1,100 | 2,500 | 650 |
| 10 | 1,000 | 1,950 | 13,500 | 6 | 1,750 | 1,900 | 1,100 | 3,200 | 700 |
| 11 | 1,250 | 2,300 | 16,400 | 6 | 1,850 | 2,000 | 1,150 | 4,000 | 850 |
| 12 | 1,500 | 2,800 | 19,800 | 6 | 1,950 | 2,100 | 1,250 | 4,150 | 1,150 |
| 13 | 2,000 | 3,250 | 24,000 | 6 | 2,050 | 2,250 | 1,350 | 5,650 | 1,450 |
| 14 | 2,500 | 3,500 | 28,500 | 6 | 2,150 | 2,450 | 1,450 | 6,450 | 1,750 |
| Item | Capacity | No load | Load loss (75oC) | Impedance | Dimensions(mm) | Total weight | Oil | ||
|---|---|---|---|---|---|---|---|---|---|
| kVA | Watt | Watt | % | Height | Length | Width | kg | Liter | |
| 1 | 50 | 170 | 950 | 4 | 1,300 | 1,000 | 700 | 550 | 165 |
| 2 | 100 | 260 | 1,550 | 4 | 1,400 | 1,050 | 750 | 800 | 230 |
| 3 | 160 | 370 | 2,100 | 4 | 1,450 | 1,150 | 750 | 990 | 280 |
| 4 | 250 | 520 | 2,950 | 4 | 1,500 | 1,200 | 750 | 1450 | 350 |
| 5 | 315 | 850 | 3,900 | 4 | 1,550 | 1,350 | 800 | 1450 | 400 |
| 6 | 400 | 1000 | 4,600 | 4 | 1,550 | 1,450 | 850 | 1700 | 450 |
| 7 | 500 | 1,200 | 5,500 | 4 | 1,650 | 1,500 | 900 | 1900 | 500 |
| 8 | 630 | 1,400 | 6,500 | 4 | 1,700 | 1,650 | 850 | 2,300 | 550 |
| 9 | 800 | 1,700 | 11,000 | 6 | 1,750 | 1,850 | 1,100 | 2,650 | 700 |
| 10 | 1,000 | 2,000 | 13,500 | 6 | 1,900 | 1,950 | 1,100 | 3,350 | 750 |
| 11 | 1,250 | 2,350 | 16,400 | 6 | 2,000 | 2,000 | 1,150 | 4,150 | 900 |
| 12 | 1,500 | 2,850 | 19,800 | 6 | 2,100 | 2,100 | 1,250 | 4,300 | 1,200 |
| 13 | 2,000 | 3,300 | 24,000 | 6 | 2,200 | 2,250 | 1,350 | 5,800 | 1,450 |
| 14 | 2,500 | 3,800 | 28,500 | 6 | 2,350 | 2,450 | 1,450 | 6,600 | 1,750 |
Manufacturing Technology
The 6300kVA Three-phase Oil-immersed Power Transformer employs fully automated production, including:
(1) Step-Laminated Core: Laser-cut 27ZH105 high-permeability silicon steel sheets with mitered joints reduce no-load losses to an industry-leading 6.5kW.
(2) Dual-Layer Insulated Windings: Copper foil for low-voltage windings and NOMEX paper-wrapped transposed conductors for high-voltage windings, combined with Vacuum Pressure Impregnation (VPI), ensure partial discharge levels <5pC in the oil-filled power transformer.
(3) Smart Tank Design: Corrugated steel welded tanks integrate pressure relief valves and online oil chromatographs for real-time monitoring. This Three-phase Oil-immersed Power Transformer also features wireless temperature sensors for remote thermal data transmission.
(4) Rigorous Testing: Each oil-immersed power transformer undergoes 20+ type tests, including Lightning Impulse (LI), short-circuit impedance, and sudden short-circuit trials, complying with IEC 60076 standards.
Suitable Environments of 6300kVA Oil-immersed Power Transformere
The Oil-immersed Power Transformer is designed for durability and cost-efficiency in diverse settings:
Climate: Operates in temperatures from -40℃ to +45℃ and humidity ≤95% (non-condensing), ideal for monsoon-prone regions like South Korea and Southeast Asia.
Installation: Suitable for indoor/outdoor deployment with ≥1.5m clearance from walls. Dust-prone areas (e.g., mines, oil fields) may require additional anti-dust mesh for this Three-phase Oil-immersed Power Transformer.
Grid Compatibility: Compatible with 50/60Hz dual-frequency systems and multiple winding configurations (star-delta), showcasing the global versatility of oil-filled power transformers.
Why choose us?
GNEE Group:
Global Transformer Supply Chain Integration Expert (2008 - Present)
Founded in 2008, GNEE Group has undergone fifteen years of deep industry cultivation, successfully transforming from a regional trader to a global supply chain management expert. As a pioneer in the integration of the steel industry chain, the group has established a full-cycle value system that spans raw material procurement, production coordination, logistics optimization, and terminal services, setting an innovative operational benchmark in the global transformer distribution sector. In the era of Industry 4.0, GNEE Group is accelerating towards its goal of becoming a global integrator oftransformer industry value through digital restructuring and green supply chain construction.
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