High Voltage Coils

Our high voltage coils are manufactured in-house and we offer a range of resin rich and global VPI insulation systems for industrial, power generation and specialist applications. With absolute control over quality, we manufacture stator, armature, field and rotor coils for all types of motors and generators up to 15kV, in diamond and concentric designs.

With over 30 years multi industry experience in electro mechanical engineering we offer:

Supply and manufacture of premium high voltage coils and auxiliary winding kits
Fully tested with a 5 year warranty
Specialist electro mechanical engineering support
Computer aided design, performance upgrade and reverse engineering capabilities
Worldwide in situ support services
ISO certified manufacturing facility with state of the art coil press

We currently export to over 30 countries worldwide, including Canada, Greece, Hong Kong, Indonesia, Australia, Nigeria, Norway, Venezuela, Malaysia, the Middle East, the USA and the Caribbean.

Customers are kept up to date using our Houghton Exchange video communication technology which offers live work in progress updates, visual diagnostic reports and live test results via video link to all them to keep track of their HV coils wherever they are in the world.

All full data quotes are presented using our AutoCoil design software, utilising the latest technology to offer 3D coil design and slot build drawings for improved design and accurate fit.

Using our extensive manufacturing expertise, we have developed a comprehensive range of insulation systems suitable for all applications, including –

HiFLEX™ Our innovative, fully tested, totally flexible insulation system.
HiRES™ Our B-stage end winding solution
HiBRID™ Our unique insulation system combining the merits of Vacuum Pressure Impregnation (VPI) and resin rich technology
HiVAX™ Our VPI insulation system

We are also experienced in the manufacture of half bar systems, which are used in the winding of turbo generator machines up to 70MW.

To learn more about Houghton International, specialist high voltage coil manufacturers, contact us today. You can find more information on our website about our range of other services, including rail traction motor services and electric motor rewind services.

Fully tested with a 5 year warranty…

Houghton International is highly confident in the quality of our coils and insulation systems and is proud to stand by them by offering an extended warranty. Our coils are designed to the highest standards and are fully tested prior to being dispatched, we see no reason they shouldn’t perform in line with the life expectancy of the refurbished machine.
As repairers ourselves, we understand the repair market is increasingly competitive and want to support our customers to give them the best chance of securing the rewind contract. By working with our customers to offer longer term quality assurance and standing by our workmanship we believe we can support a more attractive offer to the end user/asset owner where reliability is a key concern.
Warranty cost and duration can be tailored in line with customer requirements and the criticality of the repair.

Our facility

Our state of the art manufacturing facility comprises of a comprehensive range of automated shaping machines and electrically heated hydraulic presses.
Through a team of specialist pre-formed winding technicians we are also able to support our customers by carrying out rewinding projects in their facilities or on-site on a global basis.
We also have facilities for in-house testing; lamination, turn to turn, tan-delta and tip up, voltage endurance, partial discharge and hi-pot.
Our quality assurance model, accredited to ISO 9001:2008, is designed around the requirements of each individual type of coil, meaning we create a dedicated quality management system bespoke to each individual product. This process consistently produces industry-leading insulation systems.

Winding kits

We supply full windings kits, including wedges, packing strips, tapes, felt, blocks, ropes and varnishes, bespoke to each set of coils to ensure optimum fit and ease of winding. Comprising of the highest quality materials and delivered alongside the coils, the winders have everything they need to complete the rewind either in the workshop or on site.

Secure packaging and global shipment

All coils and winding kits are securely packaged using custom spacers and vacuum sealed in foil bags to protect the integrity of the coils during transit. Bespoke crates are manufactured for each order and we work with logistic companies globally to ensure we comply with all legislative requirements and that customers receive their coils in the timescales agreed.

Further Information

High voltage coils – brochure download

Our capabilities – brochure download

Coil manufacturing – showcase video

How to record accurate coil data guide

VE testing brochure download

Range of insulation systems

HiFLEX

HiRES

HiBRID

HiVAX

Related Services

High Voltage Coil Support Services

High Voltage Coil Testing & Diagnosis Services

How to Select the Best High Voltage Coil Insulation System

What Makes a Premium High Voltage Coil?

The coils and related products are of very good quality. We know that good materials and an efficient manufacture control are employed, so, the final product that we receive matches and exceeds the technical requirements requested.

Rolando Rodriguez Electromotores

Our coil data collection sheet

Paired with our guide to recording accurate coil data, use this sheet to easily collect and record accurate stator core slot dimensions for your enquiry.

Download

Our guide to recording accurate coil data

When placing an order for HV coils, in order to ensure an accurate fit and specification it is critical to ensure that key data points are measured correctly. See our guide to find out our recommended best practice.

View Guide