Iris Power Engineering's major market is electric power utilities and process industries such as petrochemical, mining, and pulp & paper companies, all of which use high voltage equipment. Products include electrical sensors, electronic instruments and monitoring systems, as well as expert system software to allow users to perform partial discharge tests on hydrogenerators, turbogenerators, and motors. Partial discharge tests warm of problems in high voltage stator windings to avoid catastrophic failure and to plan maintenance on a cost-effective basis. Iris also provides customized training courses for predictive maintenance.