An improving of {HEAD ~ a quality} of the starting or {TAIL ~ the stopping} is achieved as a result of an increasing number of power levels from two achieved in usual star delta starter and producing effective changing of the power levels 
An improving of { HEAD ~ a quality } of the starting or { TAIL ~ the stopping } is achieved as a result of an increasing number of power levels from two achieved in usual star delta starter and producing effective changing of the power levels
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH