HENTG POWER 500kVA 13.8kV/0.4kV Oil-Immersed Transformer with ONAN Cooling for Outdoor Power Distribution
Price:
Negotiable
MOQ:
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Delivery Time:
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Product Description
HENTG POWER 500kVA 13.8kV/0.4kV Three-Phase Oil-Immersed Transformer ONAN
High-efficiency outdoor distribution transformer designed for industrial, commercial, and utility power distribution networks. Engineered for reliable operation in harsh environments including high-temperature, dusty, and high-pollution regions.
Key Products: 500kVA transformer, 13.8kV transformer, 0.4kV distribution transformer, oil immersed transformer manufacturer, ONAN transformer, outdoor power transformer
Key Features & Benefits
High Efficiency & Low Loss Design
- CRGO silicon steel core with optimized magnetic circuit
- Low no-load loss and load loss options (S11 / S13 efficiency level)
- Reduced lifecycle operating cost
Heavy-Duty Tank Structure
- Corrugated tank design with elastic cooling fins
- Enhanced mechanical strength for transport stability
- Vacuum oil filling process to prevent internal moisture
Advanced Anti-Leakage System
- Double sealing structure with high-quality nitrile rubber gaskets
- Controlled torque fastening system
- 24-hour pressure testing before shipment
Designed for Harsh Outdoor Conditions
- High creepage distance bushings
- Anti-corrosion coating treatment
- Suitable for high dust and sandstorm areas
Flexible Customization Options
- Voltage ratio customization (13.8kV/0.4kV or others)
- Tap changer ±2×2.5% or ±5%
- Copper or aluminum winding
- Optional accessories (Buchholz relay, temperature indicator, surge arresters)
Technical Specifications
| Rated Capacity | 500kVA |
| Primary Voltage | 13.8kV |
| Secondary Voltage | 0.4kV |
| Frequency | 50Hz / 60Hz |
| Cooling Method | ONAN (Oil Natural Air Natural) |
| Phase | Three-Phase |
| Vector Group | Dyn11 (customizable) |
| Insulation Class | Class A |
| Temperature Rise | 60K / 65K |
| Standards | IEC 60076 / ANSI / BS (upon request) |
| Installation | Outdoor pole or ground mounted |
Suitable Applications
Utility substations
Industrial plants
Mining projects
Solar power stations
EPC power distribution projects
Special Design for High Dust & Sand Environments
Common Problems in High-Dust African Regions:
- Sand accumulation causing overheating
- Gasket aging leading to oil leakage
- High ambient temperature accelerating oil expansion
- Corrosion due to high UV exposure
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Hunan Hentg Power Electric Technology Co., Ltd.
Location
Room905, D6 building, CCSP Industrial Park, Yuelu District, Changsha，Hunan province, China
Contact Person
Ms. Laurel