Product Overview
The 6.6kV three-phase power distribution transformer is a high-voltage power conversion device specifically designed for industrial and mining facilities, industrial parks, overseas projects, and special power distribution scenarios. It is suitable for 6.6kV power frequency AC distribution systems, primarily used for high-voltage step-down, power conversion, voltage regulation, and load distribution. It converts 6.6kV high voltage into low voltage for power consumption, providing stable power supply to industrial equipment, complete distribution systems, and production loads, effectively optimizing distribution structures and ensuring safe equipment operation.
The product strictly adheres to national and power industry standards. It features high-permeability magnetic cores and high-quality winding structures, offering advantages such as low losses, low temperature rise, stable operation, and strong overload capacity. Suitable for both indoor and outdoor installation, it is widely used in mines, overseas projects, industrial plants, special high-voltage distribution, and new energy supporting applications.
Operating Conditions
1. Ambient temperature: -40°C to +55°C, resistant to high and low temperature alternation, suitable for extreme seasonal conditions.
2. Altitude: ≤1000m; reinforced insulation and anti-pollution structures available for high-altitude areas.
3. Relative humidity: ≤95% (at 25°C); moisture-proof and anti-condensation design prevents aging of the core and windings.
4. Installation site: Outdoor distribution zones, industrial plants, mining sites, substations; no severe vibration or strongly corrosive gases.
5. Protection rating: IP54 for outdoor use, IP20 for indoor use; dustproof, waterproof, weather-resistant, suitable for complex operating environments.
6. Installation requirements: Horizontal fixed installation with reliable grounding; adequate ventilation, heat dissipation, and safe maintenance clearance.
Technical Parameters
Parameter | Unit | Value |
|---|---|---|
Rated voltage (HV) | kV | 6.6, suitable for dedicated high-voltage distribution systems |
Rated frequency | Hz | 50 |
Rated capacity | kVA | 50–2500, fully customizable |
Number of phases | --- | Three-phase, balanced and stable power supply |
Impedance voltage | % | 4.0–6.5, strong current fluctuation suppression |
Temperature rise limit | K | ≤65, low temperature rise, energy-saving, durable |
Service life | Years | ≥20 years, stable structure, suitable for long-term operation |
Protection rating | --- | IP20 indoor / IP54 outdoor, adaptable to various installation scenarios |
Product Features
1. Special voltage adaptation: Designed specifically for 6.6kV special voltage systems, providing precise voltage conversion for overseas projects and non-standard mining distribution conditions.
2. Ultra-low losses and energy saving: High-permeability silicon steel core minimizes no-load and load losses, offering significant energy savings and high long-term economic efficiency.
3. Stable and balanced power supply: Uniform three-phase winding process ensures high voltage balance, effectively suppressing voltage fluctuations and ensuring stable operation of downstream equipment.
4. Excellent overload capacity: Sufficient winding cross-section and reasonable heat dissipation structure allow short-term overload without overheating or tripping, suitable for fluctuating load conditions.
5. Reliable insulation safety: Multi-layer graded insulation process provides high dielectric strength, preventing breakdown and flashover, suitable for complex high-voltage environments.
6. Long maintenance-free life: Compact and robust structure with no vulnerable parts, resistant to aging and fatigue, resulting in extremely low maintenance costs.
Our Advantages
1. Specialized in customizing 6.6kV non-standard voltage transformers for overseas, mining, and special power distribution needs.
2. High-permeability cores and pure copper windings selected; fully precision-manufactured with factory testing for voltage withstand, losses, and temperature rise.
3. Compliant with power industry standards, with complete process specifications and certifications, meeting acceptance requirements for special distribution and overseas projects.
4. Support for non-standard customization of capacity, voltage connection methods, protection ratings, and HV/LV parameters to suit various special working conditions.
5. Full installation, commissioning guidance, and lifetime technical support; rapid fault response to ensure distribution system stability.
Ordering Guide
Please provide the following information to ensure accurate matching with operating requirements:
1. Specify the rated capacity, high and low voltage levels, frequency, and connection group requirements.
2. Confirm the installation type: indoor or outdoor, and whether special customization for high altitude or heavy anti-corrosion is required.
3. Describe the on-site load conditions and application scenario to match the optimal loss and impedance parameters.
4. Confirm whether factory test reports, installation guidance, and comprehensive after-sales support services are required.
