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

R Baker (Electrical) Ltd manufacture a range of single phase transformers covering everything from 50VA up to 150kVA. Additionally, we have the facilities to repair and rewind transformers up to the 500kVA range.
Our transformer technicians drive us to the forefront of transformer design and manufacturing in the UK. We are an independent British company offering world class engineering solutions. We can assist with designing, modifying or reverse engineering to your required specifications.

Single phase transformer range

We manufacture single phase transformers with commercial, rail, offshore and military applications in mind. We have a commitment to drive innovation by design and manufacture using the latest technologies. Regardless of your transformer requirements, our team can offer the best design and technical advice in the UK. From transformer design through to transformer maintenance, our team are here to help.

The single phase transformers that we manufacture are custom built to ensure they meet your specification. Our range of transformers all conform to BS EN61558 and EN 60076 standards. Also our procedures and quality controls are independently monitored to BS EN ISO 9001:2000. Additionally, we work alongside all the leading quality and testing authorities such as; DNV, BSI, Lloyds, Nemko, NSN and VDE. Read more about our accreditations and memberships here.

We have supreme confidence in our manufacturing team’s ability to include you in every step of the manufacturing process. We can supply design data, technical information and CAD drawings when required. This ensures that we provide you with the finished product that will meet your needs exactly.

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

Transformer range

We offer a wide range of transformers aimed at covering each and every client need, these include:

  • Current transformers
  • Auto transformers
  • Isolation transformers
  • Earthing transformers
  • Bushing transformers
  • Custom built transformers
  • Air cooled transformers
  • Liquid cooled transformers (oil immersed)
  • Harmonic current reduction transformers
  • Step up and step down transformers
  • Delta/Star, Interconnected Star transformers
  • Auto wound, phase shifted scott & tapped delta transformers
  • Marine / offshore transformers
  • Transformer-rectifier units for D.C. power supplies
  • Military transformers / NSN / NATO transformers
  • Zone 1 and Zone 2 (Exd) hazardous areas transformers
  • Transformer maintenance programmes

Transformer repairs & rewinds

Three Transformer manufacturer and repairWe provide a full, single phase transformer rewind and repair service, and are uniquely positioned as one of only a few companies that offer a transformer rewind service. We are well equipped to handle all emergency and non-emergency repairs of transformers.

Regardless of brand or application, we are here to help with all transformer rewinds. We can also reverse engineer damaged or obsolete transformers, which means we offer you a unique service.

Our transformer team is one of the leading technical teams in the UK when is comes to transformer rewinds.

Our team are here to offer you free advice if you have a single phase transformer which needs rewinding. We value our customers and try to build long-lasting relationships, based on trust and value. We aim to issue quotes within 24 hours whenever possible.

Read more about our transformer repair and rewinds service here. 

Transformer enclosures

Single Phase Transformer EnclosureOur transformer range can be supplied with or without an enclosure. If an enclosure is required, we will supply transformers suitably protected by a sheet metal case which is wall mounted or floor standing.

We also construct enclosures from stainless steel or aluminium to meet your specification. For customer who operate in hazardous area zones, we can supply ATEX enclosures suitable for gas and dust environments. Our standard cases are IP23 but we can supply up to IP66 if required, usually with little or no addition to lead-time or cost.

Manufacturing facility

Our manufacturing facility is based in Liverpool and is equipped with a wide range of winding machines and testing equipment to accommodate the various types of transformers that we manufacture and repair.

Case studies

300VA transformers

As a one of the leading transformer manufacturers; we were tasked by our customer to manufacture a military style 330VA single phase transformer. The transformer was designed to isolate and step down the incoming voltage from 230/115v, to 24v. Due to this having a marine application the transformer was enclosed in an IP23 case as specified in the design.

Bespoke solution

Our customer required a solution to increase production within their foam packing business. We worked with the customer to develop and manufacture a single phase variable transformer which was designed to be installed on a stainless steel table. This solution was designed for heavy usage and to reduce cutting time when cutting foam sheets. The final solution was such a success the customer ordered two more; due to an increase in orders they received, from being able to maximise output from the cutting solution.

800VA - rail mounted transformer

Our transformer team have a vast amount of experience in designing and manufacturing ATEX transformers for use offshore. Our client required a custom built 800VA single phase transformer to be used in a hazardous area. The transformer was utilised within a control panel and had specific size restrictions. As one of the leading Transformer Manufacturers we were able to use our in-house design software to reduce the size and heat rise of the transformer to ensure that it met the size restrictions. The transformer was to be supplied with installer’s declaration, internal layout drawings, photographs of components, BOM and certificates for ATEX and IECEx standards.

Product overview

Voltage up to 6.6 KV

Cooling air (A/N) oil filling

Sectors all sectors

kVA up to 150 kVA

Enclosure up to IP66

Location european service