Dry Type Three-phase Double-winding Non-exciting Voltage Regulating Distribution Transformer,Efficiency Level 1

Three-Phase Dry Type Electric Transformer

1. Safe, fireproof, pollution-free, can be installed directly in the load center.

2. Maintenance-free, easy to install, low total operating costs.

3. Good moisture resistance; can operate normally under 100% humidity. After stopping, it can be put into operation again without pre-drying.

4. Low loss, low partial discharge, low noise, good heat dissipation; under forced air cooling, it can run at 150% of rated load.

5. Equipped with a complete humidity protection and control system for reliable operation.

Functional Characteristics

1. Flame retardant, non-polluting, suitable for direct installation in load centers.

2. Maintenance-free, easy to install, low operating costs.

3. Enclosure has good moisture resistance; transformer can be operated without pre-drying under 100% humidity.

4. Low loss, lightweight, compact, low noise, good heat dissipation; can run at 150% rated load under forced air cooling.

5. Complete temperature protection control system provides reliable protection for safe operation.

6. High reliability: inspection results of operating products show reliability indexes have reached internationally advanced levels.

·  Low Loss: No-load loss is reduced by more than 35%, providing excellent energy savings, economical operation, and maintenance-free performance.

·  Low Noise: Noise level is 10–15 decibels lower than current professional standards.

·  Environmental Protection: Resin insulation provides full encapsulation and inter-turn immersion. Coil insulating materials such as glass fiber are self-extinguishing, prevent arcing during short circuits, and the resin does not emit toxic or harmful gases at high temperatures.

·  High Heat Resistance: Both high and low voltage coils are encapsulated with thin epoxy resin, offering high thermal conductivity and good heat dissipation.

·  Compact and Lightweight: Small size, low weight, saves space, and reduces installation costs.

·  Durable Shell: Made of stainless steel or aluminum alloy; can resist water droplets at a 0° angle, suitable for outdoor operation.

·  Temperature Control System: Equipped with a temperature controller that issues an alarm if overheating occurs and automatically trips when the temperature exceeds safe limits.

·Advanced Insulation Materials: The transformer employs high-quality insulation materials that enhance electrical strength and weather resistance, ensuring long-term stable operation.

·Excellent Heat Dissipation Performance: Optimized internal structure and high-performance thermal conductivity materials enable rapid heat dissipation, reducing operating temperature.

·High Adaptability: The transformer maintains stable operation even in high-temperature, high-humidity, and other challenging environments, significantly improving power supply reliability and stability.

· Terminal Connectors

· Cast resin coils

· Epoxy Resin Capacitive Insulator

· Special Termination Arrangement

· Cable Box / Bus Duct

· Cooling Fan

· Rollers (Uni-Directional / Bi-Directional) Protection with Temperature Scanner

· Scanner Off Circuit Tap Changer