Overview
Distribution & Power Transformers are designed for reliable and efficient power delivery in industrial, commercial, and utility applications. Built with high-quality materials and advanced design, they ensure long-term durability, low losses, and minimal maintenance.
Applications
Ideal for industrial plants, commercial facilities, utility networks, and multi-shift operations in challenging environmental conditions.
Design Highlights
Constructed with flame-retardant and fire-resistant materials, these transformers can be installed safely near load centers. They feature high-quality silicon steel cores, copper windings, and advanced insulation, providing excellent short-circuit resistance, heat dissipation, and moisture tolerance.
Operational Advantages
These transformers offer high overload capacity, low partial discharge, exceptional heat dissipation, and superior moisture resistance. Proven reliability with over 10,000 units in operation worldwide ensures consistent performance under heavy loads and harsh conditions.
Environmental & Safety Considerations
Eco-friendly, non-polluting design with fire-resistant insulation and non-toxic materials. Insulation prevents toxic gas emission during faults and complies with AS 60076 standards.
Maintenance & Lifespan
Maintenance-free design and easy installation reduce operating costs while ensuring long-term durability and extended service life in demanding environments.
Features
- Low partial discharge with minimal noise ensures reliable operation in all conditions.
- Excellent overload performance: can operate at 150% of rated load with forced air cooling, supported by a built-in temperature protection control system.
- Constructed from flame-retardant and fire-resistant materials, ensuring safe operation near load centers. Environmentally friendly and non-polluting design simplifies installation.
- Maintenance-free operation with easy installation, reducing overall operating costs and minimizing energy loss.
- Superior moisture resistance allows normal functionality under up to 100% relative humidity.
- Exceptional heat dissipation ensures consistent performance under heavy loads and high ambient temperatures.
- Over 10,000 units are in operation worldwide, demonstrating proven reliability and long-term performance.
- Core made of high-quality cold-rolled silicon steel sheets with a 45° full mitered joint structure. Core limbs are bound with insulating tape, and clamping/fastening components are surface-treated to resist corrosion.
- Core sealed with epoxy resin and strapped with insulated tapes to minimize moisture and corrosion effects. Corrosion-proof clamps and fasteners further enhance longevity.
- High-voltage windings made from copper wires insulated with glass fiber-filled epoxy resin, providing thermal expansion compatibility and improved short-circuit resilience.
- Insulation offers excellent shock and shatter resistance, is non-flammable, and prevents toxic gas emission during faults.
- Low-voltage windings use foil-type construction, reducing electrical stress, improving AC and impulse voltage withstand, and minimizing thermal stress.
Amorphous Core Variation
- Core made from amorphous alloy reduces no-load losses by 75%–80% compared to conventional silicon steel cores.
- Excellent heat dissipation and overload capacity; can operate continuously at 120% overload.
- Suitable for industrial and mining sites operating multi-shift schedules with a load factor of 50%–80%.
- Low-voltage windings adopt foil-type construction, offering strong short-circuit resistance.
- Dyn11 connection group reduces harmonic impact on the power grid and improves overall power quality.
Specifications
- Voltage rating: Up to 33 kV
- Rated power capacity: 30 kVA to 4 MVA
- Rated frequency: 50 Hz
- Vector connections: Dyn11, Yyn0
- No-load taps: ±2.5%, ±5%
- Standards: AS 60076
Enclosures for Dry Transformers
The stainless steel enclosure provides enhanced protection for the transformer. IP20 enclosures prevent intrusion of solid objects larger than 12 mm, while IP23 enclosures prevent water ingress at angles less than 60°, making them suitable for outdoor use.
