... only be 1/3 of the GB limit,motor insulation rating class H insulation. 3.Unique ... reliable and fexiable.safety,most importantly,profitable.3.Generator: Three-phase permanent magnet synchronous wind turbine,more ... only be 1/3 of the GB limit,motor insulation rating class H insulation.4.Body: ... has only two moving parts, which improves generator reliability dramatically as it has less mechnical failure ...