UK manufactured single phase and three phase auto transformers for industrial, commercial and specialist electrical applications.
Boardman Transformers manufactures single phase and three phase auto transformers for applications where voltage adjustment is required without full electrical isolation.
Our auto transformers can be manufactured to suit a wide range of voltage, rating, mounting and installation requirements, supporting industrial equipment, control panels, machinery and specialist electrical systems.
What Are Auto Transformers?
An auto transformer uses a single winding to provide voltage transformation, rather than separate primary and secondary windings. This makes auto transformers a practical option for applications where voltage conversion is required but electrical isolation is not necessary.
Auto transformers are commonly used where equipment needs to be matched to a different supply voltage, or where a compact and efficient transformer solution is required for a specific industrial application.
Auto transformers do not provide electrical isolation between input and output. If isolation is required, an isolating transformer may be more suitable.
Single Phase Auto Transformers
Boardman Transformers manufactures single phase auto transformers for applications requiring voltage step-up or step-down within single phase electrical systems.
These transformers can be designed around specific voltage and rating requirements, making them suitable for machinery, control equipment, test systems, panels and specialist electrical installations.
– Single phase voltage step-up or step-down
– Custom primary and secondary voltage options
– Suitable for machinery, panels and specialist equipment
– Manufactured to suit application-specific requirements
– UK manufactured by Boardman Transformers
Three Phase Auto Transformers
Boardman Transformers manufactures three phase auto transformers for industrial applications where three phase voltage transformation is required.
Three phase auto transformers are commonly used with industrial machinery, production equipment, plant systems and larger electrical installations where a reliable voltage conversion solution is needed.
– Three phase voltage transformation
– Suitable for industrial machinery and equipment
– Custom ratings and voltage configurations available
– Practical solution where isolation is not required
– UK manufactured for industrial applications
Custom Auto Transformers Built Around Your Specification
Many auto transformer requirements are application-specific. Boardman Transformers can manufacture custom auto transformers to suit non-standard voltages, ratings, mounting arrangements, terminations and installation environments.
Our team can help review your electrical requirements and recommend a practical auto transformer solution for your application.
– Custom voltages and ratings
– Single phase and three phase designs
– Step-up and step-down applications
– Industrial and commercial use
– Mounting and termination options
– Support for OEMs, panel builders and machinery manufacturers
Typical Applications for Auto Transformers
Auto transformers are used where voltage conversion is required and full electrical isolation is not needed.
– Industrial machinery
– Control panels
– Production equipment
– Test equipment
– OEM electrical systems
– Plant and factory installations
– Voltage matching applications
– Specialist electrical projects
Auto Transformers Vs Isolating Transformers
Auto transformers and isolating transformers are used for different purposes. An auto transformer is often a compact and efficient solution for voltage conversion where isolation is not required.
An isolating transformer uses separate primary and secondary windings to provide electrical isolation between circuits. If your application requires isolation for safety, noise reduction or system separation, an isolating transformer may be the more suitable option.
If you are unsure which transformer type is right for your application, our team can help review your requirements.
Frequently Asked Questions
Below are answers to common questions about the Auto transformer range and how Boardman Transformers can support your application.
What is an auto transformer?
An auto transformer uses a single winding to provide voltage transformation. It is commonly used where voltage step-up or step-down is required and electrical isolation is not necessary.
Does an auto transformer provide electrical isolation?
No. Auto transformers do not provide full electrical isolation between input and output. If isolation is required, an isolating transformer may be more suitable.
Does Boardman manufacture single phase auto transformers?
Yes. Boardman manufactures single phase auto transformers for applications requiring voltage adjustment in single phase systems.
Does Boardman manufacture three phase auto transformers?
Yes. Boardman manufactures three phase auto transformers for industrial applications where three phase voltage transformation is required.
What are auto transformers used for?
Auto transformers are used for voltage step-up or step-down applications, voltage matching, machinery, panels, production equipment, test systems and specialist electrical installations.
What is the difference between an auto transformer and an auto starter transformer?
An auto transformer is used for general voltage conversion where isolation is not required. An auto starter transformer is designed specifically for reduced-voltage motor starting applications.
Why Choose Boardman for Auto Transformers?
Custom Build Capability
Transformers manufactured to suit specific voltage, rating and installation requirements.
UK Manufacturing
Industrial Experience
Supporting industrial, commercial and specialist transformer applications since 1955.
Practical Specification Support
Help with voltage, rating, configuration and application requirements.
What to Include in Your Auto Transformer Enquiry
To help us quote for your auto transformer, please provide as much of the following information as possible.
– Single phase or three phase
– Input voltage
– Output voltage
– Required VA, kVA or current rating
– Frequency
– Step-up or step-down requirement
– Mounting arrangement
– Termination requirements
– Enclosure requirements, if any
– Quantity required
– Any compliance or documentation requirements
Not sure what information you need? Contact our team and we’ll help identify the right details for your application.
Need a Single Phase or Three Phase Auto Transformer?
Speak to Boardman Transformers about custom auto transformers manufactured to suit your voltage, rating and application requirements.