We overhaul, repair, or exchange, for example, various types of windings, rolling element or sleeve bearings, cores, or coolers. Alternatively we alter generators, for example, from horizontal to a vertical arrangement. Diagnosis of windings is done with high sensitivity insulation meters, tan delta, or PD (partial discharge) measurements.

Checking of cores is done e.g. by establishing values from Epstein tests and thermal photography. Sleeve bearings are measured and checked ultrasonically. We work with all types of windings, both high and low voltage. When rewinding generators to a different voltage, we make detailed calculations to optimize the machine characteristics.