General

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

As leading UK power transformer manufacturers, R Baker (Electrical) Ltd offer a range of Isolation transformers suitable for varied applications from 500VA up to 1MVA. At our Liverpool base we also have the facilities on-site to repair or rewind isolation transformers up to 1MVA, and can also design, modify or reverse engineer single and 3 phase transformers.

Our Isolation transformer range

As an industry leader in the field of isolation transformer manufacturers, we can supply to your exact specifications whatever your requirements or industry sector. We’ll work closely with your own teams to ensure we develop the ideal solution for you no matter how unique or unusual your requirements. Our ability to deliver such bespoke systems tailored specifically to our clients has been honed over many years’ experience working with clients in demanding sectors with unique needs such as the chemical, military and offshore industries. We can meet your needs no matter how exacting.

Our transformers have protection against humidity and vibration and all comply to BS EN61558 and EN 60076 standards unless other specific standards are requested. In addition to this, all our quality standards are independently monitored to BS EN ISO 9001:2000 and of course are subject to regular internal and external audits. We can manufacture transformers with any type of termination required; our finger proof block terminals are shock proof and conform to BS EN standards.

We can also supply transformers with or without an enclosure. If supplied with an enclosure the transformer will come complete with protective sheet metal casing - either wall mounted or floor standing. Or we can create bespoke enclosures made of stainless steel or aluminium. ATEX enclosures can also be supplied for gas or dust hazardous environments.

Our standard cases are supplied to IP23 protection standard, though we can supply these up to IP66 if required and this will usually incur no or very little additional lead-time.

Isolation transformer range

As an industry leader in the field of isolation transformer manufacturers, we can supply to your exact specifications whatever your requirements or industry sector. We’ll work closely with your own teams to ensure we develop the ideal solution for you no matter how unique or unusual your requirements. Our ability to deliver such bespoke systems tailored specifically to our clients has been honed over many years’ experience working with clients in demanding sectors with unique needs such as the chemical, military and offshore industries. We can meet your needs no matter how exacting.

Our transformers have protection against humidity and vibration and all comply to BS EN61558 and EN 60076 standards unless other specific standards are requested. In addition to this, all our quality standards are independently monitored to BS EN ISO 9001:2000 and of course are subject to regular internal and external audits. We can manufacture transformers with any type of termination required; our finger proof block terminals are shock proof and conform to BS EN standards.

We can also supply transformers with or without an enclosure. If supplied with an enclosure the transformer will come complete with protective sheet metal casing - either wall mounted or floor standing. Or we can create bespoke enclosures made of stainless steel or aluminium. ATEX enclosures can also be supplied for gas or dust hazardous environments. Our standard cases are supplied to IP23 protection standard, though we can supply these up to IP66 if required and this will usually incur no or very little additional lead-time.


Transformer repair and rewinds

At R Baker (Electrical) Ltd we’re also pleased to be able to offer our customers a complete transformer repair and rewind service, all in-house at our Liverpool maintenance workshop. The service is available 7 days a week, providing total piece of mind for our clients that we can deal with critical failures without delay.

We also run maintenance plans for many of our clients across a wide base of industry sectors and over the years have developed the capability to deal with just about any customer requirement. We repair and rewind transformers for the rail, nuclear, university and chemical industries, all of whom have very diverse and particular specifications.

We can help whatever your maintenance and repair needs – whether it’s helping to develop and implement an ongoing maintenance strategy, or simply solving persistent problems with specific equipment or components. We’ll work with your own teams to ensure you get the repair and maintenance solution to best suit your wishes.

Features benefits

  • Short lead times with competitive prices
  • Robust and durable construction
  • Bespoke solutions
  • Wide range of input and output voltages available
  • ATEX approved transformers
  • Plug and socket options include ATX, CEAG, STAHL and Marechal
  • Electrical circuit protection options include short circuit fuse, MCB, RCBO and mains isolator

Transformer range

  • Current transformers
  • Auto transformers
  • Isolation transformers
  • Earthing transformers
  • Bushing transformers
  • Custom built transformers
  • Air cooled 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

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.