Damper winding 30 also reduces {HEAD ~ forces} resulting from rotation of {TAIL ~ an unbalanced force load} and reduces rotor harmonics 
Damper winding 30 also reduces { HEAD ~ forces } resulting from rotation of { TAIL ~ an unbalanced force load } and reduces rotor harmonics
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH