Auto Transformers
An autotransformer is an oil-immersed transformer with only one winding and a single coil acting alone; portions of the same winding act as the transformer's primary and secondary winding sides. Autotransformers are designed to meet specific customer requirements. The following describes the general product features and performance factors for UTEC autotransformers. UTEC autotransformers are generally available in single- and three-phase configurations in various voltages and ratings suitable for multiple commercial and industrial applications. Please contact UTEC for additional product information specific to your application.
Key Product Features
Variable Voltage Adjustment
The autotransformer's single winding can be tapped at multiple points, providing a range of turn ratios for variable output voltage. This flexibility suits various applications, including step-up and step-down transformations.
Cost-Effective Design
The UTEC autotransformer is a cost-effective alternative to conventional double-wound transformers. Its single winding results in a smaller footprint and reduced material requirements, making it an efficient and economical choice.
Compact and Lightweight
With its single-winding construction, the UTEC autotransformer is significantly smaller and lighter than isolation transformers of comparable capacity. Since part of the winding does "double duty," autotransformers often have the advantage of being smalle
Enhanced Voltage Regulation
The autotransformer boasts superior voltage regulation due to minimized voltage drop in the single winding's resistance and reactance. This results in a more stable and reliable voltage output.
High Efficiency
Compared to traditional two-winding transformers, the UTEC autotransformer exhibits higher efficiency. It requires less excitation current and low losses, contributing to energy savings and reduced operational costs.
Versatile Applications
The UTEC autotransformer finds applications in various scenarios, such as compensating voltage drops, starting motors, serving industrial machinery, and acting as a variac in laboratory setups.
Proven Performance
Industrial Voltage Adjustment
Ideal for commercial and industrial machines, the UTEC autotransformer efficiently adjusts the voltage for motors, compressors, lathes, CNC machines, and other equipment, providing a seamless match to building service voltages.
Substation Use
In substations, the UTEC autotransformer transfers high-voltage incoming power to lower voltage levels and is equipped with on-load tap-changers for dynamic adjustments. It excels in various grid configurations, ensuring a stable and reliable power supply
Broad Size Range
The UTEC autotransformer is available in a broad range of sizes, with ratings reaching up to 10 MVA and beyond. It accommodates primary voltages up to 36 kV and secondary voltages typically ≤ 24 kV, depending on grid specifications.
Advantages Over Two-Winding Transformers
The UTEC autotransformer outperforms traditional transformers with less copper and core material requirements, lower exciting current, reduced ohmic loss, and enhanced efficiency and voltage regulation.
The UTEC Autotransformer Provides Efficient Voltage Control
The UTEC Autotransformer, a revolutionary electrical transformer, redefines voltage control with its unique single-coil design. Unlike traditional transformers, UTEC utilizes a single winding for primary and secondary circuits, allowing seamless electrica
