Huge range of refurbished transformers
— in stock & available for sale or hire
The UK’s Original & Leading Refurbished Transformer Supplier
We established the UK market for refurbished transformers in the 1920s. Almost 100 years later we are still the market leader for quality refurbished power, distribution and cast resin transformers.
Four generations and thousands of satisfied customers later, refurbished transformers remain a logical and very popular choice, offering compelling advantages over buying new:
Enhanced Warranty
up to 48 months
Up to 40% Cheaper
Short Leadtime
Resource Efficient
Eco-friendly choice
All refurbished transformers can be supplied with standard accessories and HV/LV switchgear to suit your requirements and come complete with test certificates, an industry leading warranty and in ‘as new’ condition.
We sell and hire transformers on a ‘supply only’ basis, or with optional on-site installation and commissioning by our own Contracting division.
UK’s Largest Stock of Refurbished Transformers
As the UK’s leading supplier of refurbished transformers, we have over 300 used power, distribution, cast resin & low voltage transformers in stock. We hold transformers in stock from quality manufacturers such as ABB, Brush, Merlin Gerin, Pauwels, Schneider, Siemens & South Wales.
Available on short lead times, our refurbished transformer stock covers a wide range of voltages, ratings, types and applications, including special transformers such as furnace and isolating transformers.
If we don’t have a refurbished transformer to suit your requirement in stock we will try to source it for you.
Refurbished Power Transformers
- 132/11kV, 66/11kV, 33/11kV, 20/11kV, 11/6.6kV & 11/3.3kV voltages available
- 5MVA to 80MVA
- Standard losses
- ONAN or ONAF cooling
Refurbished Distribution Transformers
- 11kV, 3.3kV, 6.6kV, 20kV & 33kV primary voltages
- Wide range of secondary voltages
- 100kVA to 5000kVA
- Standard or Tier 1 losses
- ONAN, KNAN or LNAN
Refurbished Cast Resin Transformers
- 11kV, 6.6kV & 3.3kV primary voltages
- Wide range of secondary voltages
- 500kVA to 4000kVA
- Standard or Tier 1 losses
- IP00 or with IP rated enclosure
Refurbished Low Voltage Transformers
- Wide range of voltages <1000V, types winding and connections
- Auto or double wound
- Isolating transformers
- Multi-tapped transformers
- IP rated steel enclosures
About Refurbished Transformers
Unlike other suppliers, a Slaters refurbished transformer is more than just a repainted transformer.
Every refurbished transformer we supply is assessed and tested by our engineers for its build quality, condition & reliability before entering our remanufacturing facility. Transformers which meet our stringent standards then go through our 40 point rebuild and refurbishment process.
The confidence we have in our experience, processes & testing standards is reflected in the industry leading warranties we offer.
Our Refurbished Transformer Process:
- De-tank and thorough examination of core and windings & oil test to identify any signs of stress, overloading or insulation breakdown
- Shotblast, prime and repaint tank, cable boxes, radiators and lid with two-pack high gloss exterior paint in dark admiralty grey (or other colour as required)
- Rebuild transformer and undertake any modifications required, replace worn parts, re-fill with new insulating medium and fit new gaskets and breather
- Fit any accessories and close couple LV/HV switchgear as required
- Comprehensive test procedure:
- Insulation resistance-pressure-insulation resistance test (Megger test)
- Three phase winding resistance test
- Ratiometer test
- Final QA inspection, issue test and warranty certificates
Do you prefer to get in touch with us via email?
No problem, we will respond to your enquiry without delay.
Refurbished Transformers, Ecodesign & the Circular Economy
Refurbished transformers are compliant with all Ecodesign legislation.
European Union Regulation (EU) 2019/1783 (amending the original Regulation 548/2014) states that refurbished transformers originally manufactured (‘placed on to the market‘) before 1st July 2015 do not need to conform to Ecodesign Tier 1 or Tier 2 losses unless the core (or part thereof) or one or more of the complete windings has been replaced.
We also offer refurbished Ecodesign Tier 1 & Tier 2 transformers, offering low losses with the cost and environmental benefits of buying refurbished.
The Circular Economy
- Transformers are a resource intensive product in both raw material consumption and processing (manufacturing). The EU’s Circular Economy initiative promotes resource efficiency through the durability, repair, reuse & recycling of existing products.
- With the 2016-19 Ecodesign Working Plan stressing the need for an “increased focus on circular economy and resource efficiency beyond energy efficiency“, it is clear that the refurbishment and reuse of high-quality modern transformers is an environmentally responsible activity and product.
Why Choose Slaters Electricals?
We pride ourselves on our ability to supply quality transformers to suit your requirements on a short lead time and our renowned after sales service.
With almost 100 years of transformer engineering experience and know-how, our success is built on consistently exceeding our customer’s expectations and an exceptionally high number of returning customers.
The following organisations choose refurbished transformers from Slaters:
Take the Next Step…
Experienced Electrical Engineers know to always call Slaters first.