Isolation transformer manufacturer

Our technical team can help to design, modify and reverse engineer to your specification.

R Baker (Electrical) Ltd is an isolation transformer manufacturer who are based in the UK. Our range of transformers cover everything from 500VA all the way up to 250kVA. We also have all the facilities to rewind and repair transformers up to 500kVA.
We are an independent British transformer company offering world class engineering solutions. Therefore we can be on hand to assist you with design through to final testing. Our transfomer team can help to design, modify and reverse engineer single phase and three phase transformers.

Our isolation transformer range

Being a specialist isolation transformer manufacturer, we are in a unique position to offer short lead times and competitive pricing throughout our whole range. Regardless of your transformer requirements, our team can offer the best design and technical advice in the UK.

We custom make every transformer to your needs. If an enclosure is required we will supply transformers suitably protected by a sheet metal case. We also offer bespoke enclosures which can be constructed out of stainless steel, aluminium or ATEX enclosures. Our standard cases are IP23 but we can supply up to IP66 if required, usually with little or no addition to lead-time.

Our isolation transformer range can be designed specifically to meet all of your requirements, no matter how unusual. Should a specific standard be requested we can design the transformer around these standards. We work with all the leading testing and quality authorities such a BSI, DNV, Lloyds, NSN, Nemko and VDE to give you total peace of mind. Also our procedures and quality controls are independently monitored to BS EN ISO 9001:2000.

We have confidence in our manufacturing team’s ability to include you in every step of the manufacturing process.

Our custom built isolation transformer range is designed for use in commercial, rail, offshore and military

Transformer range

  • Air cooled transformers
  • Current transformers
  • Auto transformers
  • Isolation transformers
  • Earthing transformers
  • Bushing transformers
  • Marine / offshore transformers
  • Bespoke transformers
  • Step up and step down transformers
  • Zone 1 and Zone 2 (Ex d) hazardous areas transformers
  • Harmonic current reduction transformers
  • Military transformers / NSN / NATO transformers
  • Liquid cooled transformers (oil immersed)
  • Transformer-rectifier units for D.C. power supplies
  • Transformers maintenance programmes

Transformer repairs & rewinds

Three Transformer manufacturer and repairAs one of only a few companies in the UK that offer isolation transformer manufacturing and rewind services, we handle all emergency and non-emergency repairs in a fast and efficient way.

Our transformer rewind and repair service is conducted from our manufacturing facility in Liverpool. Not only can we rewind transformers, we can also reverse engineer damaged transformers. Therefore we can manufacture new transformers which are past being rewound. We can also work from drawings and winding specifications if required. This saves time and ensures your product is obsolescence proof.

We also carry out transformer maintenance programmes with a wide range of national businesses. We can start a transformer maintenance programme from scratch or using existing data to provide ongoing support.

To read more about our transformer rewind and repair service click here.

Single Phase and Three Phase Transformers

Single Phase Transformers

R Baker (Electrical) Ltd manufacture a range of single phase transformers covering everything from 50VA up to 150kVA. We can assist with designing, modifying or reverse engineering to your required specifications.

Read more > Single Phase Transformers

Three Phase Transformers

Our range of three phase transformers cover everything from 500VA all the way up to 250kVA. We also have all the facilities to rewind and repair transformers up to 500kVA. Our technical teams are on hand to assist you with design through to final testing.

Read more > Three Phase Transformers

Case studies

100kVA transformers

Our team designed and manufactured a three phase, 100kVA isolation transformer, designed to be used within a UPS system with customer specified MCCB protection and in a Delta/Star configuration. Our team have also manufactured a range of transformers to the same specification ranging from 10kVA up to 200kVA.

9kVA ATEX isolation transformer

To manufacture a hazardous area isolation transformer designed to isolate and step down the incoming 440 Volts, single phase (2 Phases of available 3), 50-Hertz supply to 240 Volts centre tap connected to earth.

45kVA isolation transformer

We enjoy a strong relationship with the MoD and manufacture a wide range of transformers for use within a military application; including isolation transformers. These transformers range from 1kVA up to 150kVA.