Power Transformers

The UK’s Fastest Power Transformer Supplier

We are a leading UK supplier of quality new and refurbished power transformers up to 100MVA.

Manufactured and tested in accordance with internationally recognised standards (IEC60076 or equivalent), we supply highly reliable power transformers for all common applications, including:

We sell and hire power transformers on a ‘supply only’ basis, or with optional on-site installation and commissioning by our own Contracting division.

We also supply freestanding or containerised 11kV and 33kV switchgear for an integrated power transformer & switchgear project.

New Power Transformers

We are the UK & Ireland distributor for BEST Transformer – one of the world’s leading transformer manufacturers and a supplier to many European national power grids & large industrial enterprises. With access to BEST’s formidable production capacity and capability, we can supply quality new power transformers at highly competitive prices in as little as 12 weeks.

Power Transformer Range:

• Ratings up to 100MVA
• 132kV, 66kV, 33kV, 11kV or other primary voltages
• Ecodesign Tier 1 or Tier 2 losses
• Mineral oil, natural or synthetic ester (MIDEL) cooled
• ONAN, ONAF, OFAF or OFWF
• Off or On load tap changer (remote controlled or automatic)
• Ancillaries including OTI, WTI, PRV, MOG, anti vibration pads etc
• 24 month warranty

Also Available:

• Cast resin (dry type) power transformers up to 30MVA
• Generator, furnace, rectifier & phase-shift transformers
• Shunt reactors
• Neutral earth resistors
• Associated HV & LV side switchgear and control gear

 

Refurbished Power Transformers

As the UK’s leading supplier of refurbished transformers, we typically have up to twenty used power transformers in stock at any one time. If we don’t have a power transformer to suit your requirement in stock we will source it for you.

Secondhand power transformers are a fast, flexible and pragmatic solution for temporary or urgent requirements, budget restrictions or capacity market generators looking for an enhanced return-on-investment

 

Benefits of Choosing Refurbished:

• 132/11kV, 66/11kV, 33/11kV, 20/11kV & 11/3.3kV available from stock
• Ratings from 5MVA to 80MVA
• Bolt-on or separate radiator cooling banks
• Dyn11, YNd11 & other vector groups available
• HV & LV side switchgear and control gear also supplied
• Full project management, logistics, installation & commissioning service

• For purchase or hire
• Very short lead time
• Supplied ‘fully refurbished’, ‘checked & tested’ or ‘as seen’ depending on your requirements
• Up to 48 month warranty

Project Management, Logistics & Services

All Slaters power transformer projects are led by a dedicated project manager who will act as your single point of contact to coordinate all engineering, logistics and commissioning activities. We also provide a wide range of services to owners and operators of power transformers.

Project Management & Logistics:

• Engineering, design (including cable calculations if required) & drawings
• Stakeholder & DNO liaison
• Factory acceptance testing
• Grading study
• Earthing nest study & installation

• National or international heavy haulage
• Dedicated contract lifting, positioning & assembly
• Cable works, installation & commissioning
• Civil design & construction works e.g. bunds & pads

Services available:

• Transformer installation & cable works
• Transformer testing & investigation
• Transformer servicing & maintenance
• Transformer repair & refurbishment
• Transformer emergency call-out

• Transformer hire
• Transformer condition assessment
• Transformer upgrades
• Transformer spare parts
• Transformer removal & purchase

 

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 power transformers from Slaters:

Take the Next Step…

Experienced Electrical Engineers know to always call Slaters first.

…or first browse our current stock of power transformers below:

Image	Manufacturer	Power	Voltage Ratio	Cooling	Vector Group	HV Taps	Details	hf:att:pa_manufacturer	hf:att:pa_power	hf:att:pa_voltage-ratio	hf:att:pa_cooling	hf:att:pa_vector-group
	ABB Power T&D	5MVA	11/3.3kV	Oil Cooled	Dyn11	±2.5 & 5%	Show details	abb-power-td	5mva	11-3-3kv	oil-cooled	dyn11
	CHINT	80MVA	66/11.5kV	Oil Cooled	YNd11	±2.5 & 5%	Show details	chint	80mva	66-11-5kv	oil-cooled	ynd11
	ABB Power T&D	5MVA	33/11kV	Oil Cooled	Dd0	17 position in steps of 1.25%	Show details	abb-power-td	5mva	33-11kv	oil-cooled	dd0
	EB Nitran	7MVA	11/3.3kV	Oil Cooled	Dyn11	±2.5 & 5% 5 position OFF circuit tap changer	Show details	eb-nitran	7mva	11-3-3kv	oil-cooled	dyn11
	Winder	7MVA	11/3.45kV	Midel Cooled	Dyn11	±2.5 & 5%. 5 position OFF circuit tap changer	Show details	winder	7mva	11-3-45kv	midel-cooled	dyn11
	ABB Power T&D	7MVA	33/11kV	Oil Cooled	Dd0	±10%, 7 position ON load tap changer	Show details	abb-power-td	7mva	33-11kv	oil-cooled	dd0
	Alstom	8MVA	21/11kV	Oil Cooled	YNd11	±2.5 & 5% 5 position OFF circuit tap changer	Show details	alstom	8mva	21-11kv	oil-cooled	ynd11
	Winder	9MVA	11/3.45kV	Oil Cooled	Dyn11	± 7.5%. 7 tapping position accessed via internal links	Show details	winder	9mva	11-3-45kv	oil-cooled	dyn11
	Brush	12MVA	11/7.1kV	Oil Cooled	Dyn11	±2.5 & 5%. 5 position OFF load tap changer	Show details	brush	12mva	11-7-1kv	oil-cooled	dyn11
	Brush	12MVA, 24MVA	33/11.5kV	Oil Cooled	Dyn11	+5.72% to -17.16%, Fitted with 16 position ON load tap changer	Show details	brush	12mva 24mva	33-11-5kv	oil-cooled	dyn11
	Brush	20MVA, 40MVA	33/11kV	Oil Cooled	Dyn11	+15% to -13.3%, 17 position ON load tap changer	Show details	brush	20mva 40mva	33-11kv	oil-cooled	dyn11
	ABB Power T&D	20MVA, 40MVA	33/11.5kV	Oil Cooled	YNyn0d1	±10%, 17 position ON load tap changer	Show details	abb-power-td	20mva 40mva	33-11-5kv	oil-cooled	ynyn0d1
	ABB Power T&D	20MVA, 40MVA	33/11.5kV	Oil Cooled	Dyn11	±10%, 17 position ON load tap changer	Show details	abb-power-td	20mva 40mva	33-11-5kv	oil-cooled	dyn11
	ABB Nitran	20MVA, 33.3MVA	34.5/11kV	Oil Cooled	Dyn11	±10%, 9 position ON load tap changer	Show details	abb-nitran	20mva 33-3mva	34-5-11kv	oil-cooled	dyn11
	Brush	25MVA, 31.5MVA	33/11kV	Oil Cooled	Dyn11	+15% to -13.3%, 17 position ON load tap changer	Show details	brush	25mva 31-5mva	33-11kv	oil-cooled	dyn11
	ABB Stromberg	32.5MVA, 40MVA	132/11kV	ONAN/ONAF Oil Cooled	YNyn0	17 Position On Load Tap Changer 166800 - 123200 in steps of 2400V	Show details	abb-stromberg	32-5mva 40mva	132-11kv	onan-onaf-oil-cooled	ynyn0