Hydro Industry

For over 55 years, Preformed Windings has led the manufacturing of high-quality diamond coils and windings for the global hydro industry.

Our QualCoil products boast low Partial Discharge levels, optimal Tan Delta levels, extended service life, and reduced maintenance. We specialise in supporting projects for increased generation output and long service life with minimal maintenance.

As the demand to double hydropower capacity by 2050 grows, refurbishing existing facilities becomes essential. Preformed Windings offers improved diamond coils that boost output levels, extend service life, and reduce maintenance.

We actively engage with industry associations like NHA and IHA, collaborate closely with OEMs and insulation suppliers, and provide tailored solutions with round-the-clock support throughout the project lifecycle. Contact us for more information.