SG Auto-Transformer

As a professional manufacturer, Yibaling can offer high quality SG Auto-transformers. Unlike isolation transformers, its primary and secondary coils share a common winding.

The cleverness of this design lies in being able to create a larger capacity using the same material, or to make something lighter with the same capacity.

The SG Auto-transformers handled by Yibaling Factory all have iron cores made of Wuhan Iron and Steel or equivalent levels of cold-rolled oriented silicon steel sheets, and the windings are made of extremely soft copper wire.

This is done solely to minimize the load loss and no-load current. The tap adjustment is specially well-designed, and the contact surfaces of the carbon brushes have been specially treated to prevent the common sparking and overheating problems seen in products from small factories.

Outline Overall and Installing Dimensions

Product Size

The Advantage of SG Auto-transformer

Our core advantages of the SG auto-transformer lie in high efficiency, high economy and precise controllability.

1. High Economic Efficiency

Through the streamlined design of sharing part of the windings, the SG auto-transformer can achieve large-capacity voltage regulation with a smaller volume and lower losses (full-load efficiency ≥ 98%), directly saving equipment costs and long-term operating electricity expenses.

2. High Performance

It uses high-quality silicon steel sheets and special soft copper wires, combined with an optimized brush contact system, ensures stable voltage output, rapid response (micro-adjustment in milliseconds) and pure waveform (distortion rate ≤ 3%) from motor speed regulation to lighting adjustment.

3. Stable Operation

The fully enclosed structure and high-temperature-resistant insulating materials enable the SG auto-transformer to operate stably and continuously in industrial environments below 45℃.

The multi-tap and modular design also support flexible customization and can be easily upgraded to an automatic voltage stabilizing system.

It is particularly important to note that all the advantages are based on the non-isolation feature. Therefore, it is absolutely not replaceable by isolation transformers for safety protection purposes.

For applications such as motor soft start-stop, production line voltage adaptation, equipment aging testing and lighting dimming, this product is suitable to use.

Product Information

Application Scenarios

The SG auto-transformer, as an efficient and economical solution for voltage regulation, is mainly applied in four scenarios:

1. Industrial manufacturing sector

Including motor soft-start and speed control, voltage adaptation for production line equipment (such as matching imported equipment with local power grids), temperature control for electric heating equipment, and product aging tests.

2. Public facilities sector

Covering stage lighting dimming, adjustable power supply in laboratories, and voltage boosting compensation in areas with low grid voltage.

3. Special equipment support

Such as process voltage regulation for injection molding machines and printing machines.

4. Special commercial scenarios

Including power supply for antique electrical appliances, voltage matching for professional audio equipment, and exhibition lighting control.

● Application boundaries must be clearly defined:

All applications must use it without electrical isolation, and it is strictly prohibited from being used in electrical scenarios involving personal safety or humid environments.

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