established 1947
established 1947
Directors:
C. Jones, G. Steele,
M. Anderson, N. Wilkes (M.D.)
Larchfield Road, Leeds, West
Yorkshire, LS10 1QP, U.K.
Phone: (044) (0)113 2705596, Fax: (044) (0)113 2721458
email: sales@leedstransformer.co.uk or sales@leedstransformer.com
Air cooled transformers.
Auto-transformers in equivalent frame sizes to our double wound range.
Auto-transformers for motor starting duty, by the Korndorffer method.
British Gas / Transco / National Grid approved isolation and supplies transformers.
Buck / Boost Transformers.
Combined LV. transformers and MCB. distribution cubicles for safety supplies.
Custom manufacture of transformers to specifiers requirements and assembly with associated control equipment. Enclosures may be fabricated to match available awkward spaces, or made to match with existing equipment.
Earthing transformers.
Epoxy cast resin encapsulated transformers for use in the arduous environments of oil rigs and other areas with high levels of humidity and vibration, some of these designs carry military seismic / seizmic approval.
Harmonic Current Reduction Transformers.
Instrumentation and power transformers for use in hazardous areas enclosed in flame / explosion proof chambers with Zone 1 , Zone 2, EEx, ExD, ExN, IECEx & ATEX approval.
K-Factor transformers, designed to reduce the heating effects of harmonic currents induced by "K" Factor, non linear loads.
Maximum service voltage: Air cooled up to 11 KV. Liquid cooled up to 15 KV.
Oil
immersed transformers: Free breathing and hermetically sealed type.
Synthetic (Silicone & Midel) liquid filled units.
Renewable energy (Solar, Hydro-electric, Wind or Biomass) Voltage & phase conversion. Grid feed from water and wind powered turbines.
Specialist Transformer units and systems for Ministry of Defence (MOD) for NATO projects and other applications
Single and Three phase, double wound transformers up to 500 KVA.
Static balancer transformers for the provision of a neutral conductor at distant locations.
Thyristor controlled power transformer units for the glass smelting & glass flake making industry
Transformers to British Rail, BRB, BREL, Network Rail, & RailTrack Specifications.
Transformer-Rectifier Units for D.C. power supplies.
Transformers with thyristor control systems.
Voltage Increase and Reduction Transformers.
Voltage measuring and metering transformers with primary windings up to 15 KV. Single phase or three phase.
Winding configurations to Delta/Star (Delta/Wye), Interconnected Star (ZigZag), Auto Wound, Phase Shifted Scott & Tapped Delta.
Combinations of many of the above.
Totally enclosed, air cooled,
isolating transformers sealed in special stainless cases suitable
for use in food-processing.
Customer: Nestlé (Rowntree-Mackintosh)
Seismically qualified, cast
in resin isolating transformers for R.N.A.D. Coulport
Nuclear Facilities.
Customer: Hawker Siddeley Power Engineering
Heavy Current Transformers &
rectifiers to support glass flake manufacturing
Customer: Corrocoat
Cast in resin, seizmically qualified, isolating transformers for U.S.N.A.D. Faslane Nucular
Facilities
Customer: Westinghouse Systems
Consultant: Kennedy & Donkin
Near Silent
replacement for Houchin aircraft power supplies, for Royal Navy Helicopters.
To BS 2G219. (ISO6858)
Customer:
How Engineering for HMS _____
Air-cooled H.V. transformer
for firewater pump auxiliaries on board an off shore
platform
Customer:
Amerada Hess Ltd
Consultant: Brown & Root
Air cooled voltage matching and
transient attenuation transformers of various sizes up to 250 KVA for the
very demanding requirements of their Lithrone Perfector series of sophisticated graphics printing machines
Customer: Komori
Sealed type, non-flammable
fluid filled H.V. Power transformers, with windings
specially braced against vibration for use on board the
Gypsum Reclaimer Machines, for the Flue Gas De-
sulphurisation Plant at Drax Power Station
Customer: PWH Materials Handling - For National Power
Site investigation and manufacture of
various sealed type, non- flammable fluid filled,
transformers to replace P.C.B. filled units supplying precision D.C.
drives
Customer: British Steel plc, General Steels Division, Scunthorpe (now Corus
/ Tata)
Sealed type, non-flammable
fluid filled, jack-up supply, isolating transformer to be used in a hazardous
area for the interconnection of two floating offshore platforms - For Ranger Oil
Consultant: H & G Engineering
Sealed type, non-flammable
fluid filled, high Spec. antennae isolation transformers with high
voltage interwinding insulation.
Customer: U.S. Department of Defense (Defence)
Air cooled, isolating
transformers for U.P.S. systems constructed using low
smoke and fume insulation materials for Raytheon Radar,
B.M.E.W.S. III Upgrade at RAF Fylingdales
Customer: Alan Electrical
Consultant: W.S. Atkins & Partners
Site investigation and manufacture of
transformer-rectifier unit to replace old mercury arc
equipment supplying D.C. operated travelling cranes from
H.V. supply. Unit tailored to fit the available space alongside the old
equipment
Customer: British Steel plc. Bryngwyn Works. Swansea (now
Corus / Tata)
Consultant: South Wales Electricity
Assorted transformers for
instrumentation, small power supplies and voltage optimisation. The majority suitable for use in "Zone
1" Hazardous Areas. All outdoor units supplied complete with galvanised
(galvanized) weather protecting hoods and mounting frames
Customer: B.P.
Chemicals Ltd. Acetyls A5 Project, Hull
Consultant: Davy McKee
Air cooled, isolating
transformers for U.P.S. Systems. Constructed using low
smoke and fume insulation materials, together with
assorted transformers for low power and auxiliary
equipment supplies. For Building 700, RAF / USAF High Wycombe,
England (Nuclear Hardened Facility). All units manufactured to withstand the
required level of seismic disturbance
Customers: Ottermill Switchgear, N.G.
Bailey
Consultant: Oscar Faber
Various Transformers for
small power and low voltage supplies at Terminal 4, Heathrow Airport
Customers: N.G. Bailey
& ABB
Consultant: McLellan & Partners
Manufacture of many Class ‘H’, Transformers, and encapsulation into 1060
HeliMiner continuous mining machine's Transformer boxes. These machines are
subject to high temperatures, constant vibration and have very tight design
parameters.
Customers: DBT / Allenwest Wallacetown for Cleveland Potash
Design, manufacture and supply ground
electrical supplies plinths for GKN Westland Apache Attack helicopters.
A very high spec. project. Design standards to Electrical Supplies For Aircraft
BS 2G219. (ISO6858)
Customers: GKN Westland Helicopters & British Army
Air Corps, Via Southern Electrical Contracting (SEC)
Consultant:
White Young Green
A range of EEx-d & other transformers,
some complete with Neutral Earthing Resistors, Earth Monitoring equipment &
Castell Safety, Trapped Key safety interlocks
Customers:
BP Hoton Platform, via JCE Aberdeen
Consultant / Facilitator:
Halliburton, Brown & Root
Manufacture to very tight electrical
and mechanical constraints, portable voltage matching transformers, with
LEMP
/ NEMP suppressors and seismic / seizmic protection for the ASTOR project
Customers: Ratheon, via Marshall SV
Zone 1 Hazardous Area Transformer c/w
Areva / Micom Relay, Impulse testing by NaREC, Certification by SIRA,
Inspected by Bureau Veritas. For the Pohokura Oil Field, North
Taranaki, New Zealand
Portable Transformer / Rectifier for testing Formula 1 racing car features
Three Phase to Single Phase, Conversion Transformers.
Manufacture of 2 off 550 KVA (Ex o e n
[ia] IIC T3) HVAC Transformers, On
Board FPSO Espirito Santo, For BC10 Field
photo kindly presented for our
website, by Single Buoy Moorings
Inc.
The Company
Leeds Transformer Company was established in
1947 and since then has been specialising in the manufacture of bespoke, custom
build, low
loss, energy efficient, high
quality transformers and transformer rectifiers. These are designed and built by
our dedicated, highly skilled team at our works in Leeds, West Yorkshire,
England.
Our transformers and rectifiers range from 1 to 550KVA and are built to British
and International standards with, short lead times, quality assurance traceably
and conforming to the BS EN ISO 9001:2000 Standard, and if needed, documentation (Quality and Technical IOM Manuals with AutoCAD drawings). Liasing with
consulting engineers and specifiers to produce the 'right answer' for the
project.
Procedures
Fully detailed, priced quotations, detailing technical and administrative arrangements, and terms.
In house design utilising AutoCad, Microsoft Excel & 'In-House' design tools & data.
Manufactured to Lloyds Register of shipping, BS 171 – IEC 60076 – IEC 60726 where applicable.
Computer controlled, Sales and Purchase, with Quality, Stock Procurement and Control, Conforming to the BS EN ISO 9001:2000 Standard, using Filemaker ® database system.
All instruments and precision tooling certified & calibrated.
In House automated cutting of Corus (Tata), Electrical grade, grain orientated, low loss steel cores, in straight and mitred configurations.
Clean, ferrous free, winding environment for Prime Quality, UK sourced, electrical grade, copper coils.
DuPont™ Nomex® Paper and Pressboard, Weidmann Whiteley Elephantide, and Presspahn Insulation materials
Insulation improvement by drying out, vacuum impregnation, and full thermal curing of solventless varnish, in a Marr oven, tested at each stage by Calibrated Megger Instruments.
Extremely Robust techniques employed in designs of Coil to Core, and Transformer to case assembly.
Fluid coolants utilised are, M & I Materials Ltd, Midel® 7131, Xiameter PMX 561(was Dow Corning® 561), Transformer Insulating Oil BS148: 1998 Class 1 & 2. Hermetically sealed units issued with inert BOC dry nitrogen blanket above fluid.
Routine, and temperature rise (type) testing IAW BS EN 60076. Also available, Impulse testing by NaREC, Certification by SIRA, Inspected by Bureau Veritas (BV), Det Norske Veritas, Lloyds Register of Shipping, American Bureau of Shipping (ABS) and/or similar authorities.
CE marking in accordance with European directive 2006/95/EC.
Casing, Crating, Packing & Shipping to international standards where required. Transportation by groupage, door to door, sea and air.
Full documentation packages available.
Terms and Conditions
Link to Leeds Transformer Company's Terms and conditions of sale.pdf
Mirror
Site of Leeds Transformer Company's Terms and conditions of sale.pdf
Location
By Road
Near the Junction of the M1, M62, M621 and
local to the A1(M)
Link
to Map of Leeds Transformer Co. Larchfield Road, Leeds LS10 1QP
Satellite
Navigation (SatNav) - TomTom® Link Button 
Nearest Airports
Leeds Bradford Airport, Yeadon (LBA) - 13 Miles - 21 Kilometres
Link
Doncaster Sheffield Robin Hood Airport, Finningley (DCS) - 43 Miles - 69
Kilometres
Link
Manchester, Ringway (MAN) - 54 Miles - 86 Kilometres
Link
London
Heathrow Airport (LHR) - 194 Miles - 312 Kilometres
Link
Employment
The company does not have a rapid employee
turnover, however occasionally we do have openings (job vacancies). If you live in the local
area, or perhaps Wakefield, Pontefract, Castleford or other commutable areas, are a
winder or have lengthy experience in Transformer winding or assembling, and are seeking jobs with a small friendly team, why not
contact us.
Any other skills that you think may be of use to us?? We are happy to tailor a job around a particular person or expertise.
The 'firm' changed it's market to transformer manufacture, employing more and more personnel and moved to the present purpose built factory in September 1965.
Walter Townley died in 1968, and is remembered as a good friend.
George Steele and Chris Jones - long term, electrically qualified, employees, joined by Mal Anderson, a Mechanical Engineer, took over the ownership from Max in 1984.
A dedicated 'Winding workshop' was added in 1989.
Nigel Wilkes, another long term employee, who is qualified in Electrical & Electronic Engineering, in addition to qualifications in Management, took over the company in September 1999. Nigel is now the majority shareholder and Managing Director.
A centrally heated stores was built in 2000.
Max Harris, sadly, died suddenly in October 2005, aged 92. He was a director for 58 years, and maintained a keen interest in the Company to the end. His departure was the end of a significant era, and he is very much missed.
Further expansion, early in 2009, into an adjacent factory, taken on as a warehouse, enabled reconfiguration of the old 'Stores' into a 'Ferrous Workshop'.
September 2009 saw our office and canteen structure replaced with purpose designed canteen, Ladies & VIP toilet & 'Yard Office' below, with Admin, Design and MD offices above.
During 2009 and early 2010, we have recruited Accountancy, Admin, Design and Workshop staff at all levels to cater for the upturn in PetroChem and other work.
George Steele, Chris Jones & Mal Anderson, are still directors, working 'part-time'.
Leeds Transformer Co. Meadow
Road. Circa 1953
A brief profile of our company may be found at
http://www.leedstransformer.comConstructed and maintained by Mal.Anderson. Website search engine optimisation technique ©Malcolm Anderson 2009. Last modified 10 February 2010.