4-pole farrand brushless alternator specifications 3 phase h class temperture-rise(125c) winding 311 Alternator model Fld274c Power 100kva Exciter type Shunt self- excited brushless Power factor 0.8lagged Frequency/ speed 50hz/ 1500rpm Characters 4 poles, 1 or 2 bearing A.V.R model Sx440 With avr voltage regulation 0.5% Insulation grade H Protection grade Ip23 Thf/tif Thf=2%, tif=50 Winding pitch 2/ 3 Lead number 12 Certificate Ce, sgs iso, Warranty 24 months