... 3. 1500rpm / 1800rpm. 4.Class H,Three phase,brushless High efficient AC brushless alternator 200kw Stamford alternator1. 6.5-536kw ... 3. 1500rpm / 1800rpm.4.Class H,Three phase,brushlessSTF series brushless alternatorHigh class HIP23with AVRsingle/double bearingpower range ... alternator,exciter and exciter control systems,provided with brushless,self-excited and auto voltage regulationcompact contruct, ...