Zhejiang Jiangshan Hengli Electrical Co., Ltd. is one of the leading manufacturers and suppliers of 500kva power distribution transformer in China. If you're going to wholesale durable 500kva power distribution transformer made in China, welcome to get pricelist from our factory. All customized products are with high quality and low price.
This is a 500kva power distribution transformer adopting ONAN oil natural air natural cooling and off-circuit tap change with standard 10kV±2×2.5%/0.4kV voltage ratio and Dyn11 vector group. Rated at 500kVA/50Hz with 4% short-circuit impedance, it delivers reliable power conversion for global industrial, commercial and grid power distribution.It is a three-phase fully sealed oil-immersed distribution transformer follows IEC 60076, GB 1094 & GB/T 6451 standards.This 500kva power distribution transformer features strong short-circuit resistance, low noise and superior environmental adaptability. It can be installed indoors or outdoors and run continuously with simple daily maintenance under normal operating conditions.
As a direct transformer factory, we support customization of capacity and voltage level, provide complete export documents, adapt to the power distribution needs of different countries around the world, and provide technical support throughout the process. We aim to be your trusted partner for power distribution equipment.
Technical Specs
Key Product Advantages
Superior energy efficiency: The iron cores are using high quality high permeability oriented silicon steel sheet, optimized design,making on-load loss ratio pretty low.
Maintenance-free fully sealed design: Corrugated oil tank without conservator blocks air, moisture and dust, avoiding oil deterioration and insulation dampness. Elastic fins offset oil volume expansion from temperature shifts.
Robust & safe operation: Pure copper windings resist short-circuit and lightning surges, fitted with pressure relief valve and grounding terminals. Boltless miter-joint core lowers running noise and vibration.
Wide environmental adaptability: Works at altitude ≤1000m (5% capacity derating per extra 1000m), -25℃~+40℃ ambient temp (-40℃ low-temp custom available), humidity ≤85% at 25℃, anti-dust & anti-corrosion.
Easy installation: Compact layout fits indoor distribution rooms, outdoor platforms, pole mounting and box substations with minimal foundation work.
Application Areas
Our 500kva power distribution transformers are widely used in:
- Power utilities and substations
- Industrial manufacturing plants
- Commercial buildings and complexes
- Hospitals and medical facilities
- Universities and campuses
- Renewable energy systems (solar & wind)
- Infrastructure and construction projects
Working Process of the 500kva power distribution transformer
1.Alternating current flows into the high-voltage primary winding, creating an alternating magnetic field in the iron core.
2.The alternating magnetic field cuts the low-voltage secondary winding and induces voltage, realizing voltage conversion.
3.Heat generated during operation is absorbed by transformer oil and dissipated through the tank and radiators.
4.In case of internal faults, transformer oil suppresses arcs, and protective devices ensure safe operation.
Operating Conditions
Testing & Quality Assurance
Each three phase distribution transformer undergoes strict testing procedures before shipment:
- Winding resistance measurement
- Voltage ratio and vector group test
- No-load and load loss testing
- Insulation resistance and withstand voltage test
- Temperature rise test (optional)
All products comply with IEC 60076, other major international standards
FAQ
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