Three-Phase Dry Isolation QSG Autotransformer 660V/380V to 220V/200V/110V Servo Step-Up Tunnel

This advanced autotransformer offers reliable voltage conversion for various industrial applications. Designed for three-phase power systems, it efficiently steps up voltage from 660V/380V to 220V/200V/110V. Featuring a dry isolation design, it ensures safety and durability while minimizing noise and maintenance. Equipped with a servo mechanism, it provides precise voltage regulation, making it ideal for environments where stable power output is critical. Perfect for use in tunnels or other demanding settings, it delivers superior performance and energy efficiency. Voltage Ratio: 660/380 becomes 220 Power Phases: Three-phase Rated Power: 1000VA-300KVA Moisture-proof Method: Open Cooling Method: Self-cooling Cooling Form: Dry Frequency Characteristics: Low Frequency Winding Form: Double winding Core Form: Shell-type Core Shape: Type E Appearance and Structure: Vertical Efficiency (η): 98% Application: Isolation Manufacture country: China Instructions included: No