The motor exhibits three different torque curves suitable for starting operation, {TAIL ~ an intermediate speed operation} and {HEAD ~ normal or steady state operation} by the switching operation of the first and second switches 
The motor exhibits three different torque curves suitable for starting operation , { TAIL ~ an intermediate speed operation } and { HEAD ~ normal or steady state operation } by the switching operation of the first and second switches
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH