Chuck Yung
EASA Technical Support Specialist
One of the many interesting things we get to do as repairers of rotating electrical equipment is to rewind the rotating poles of synchronous machines. Handling large poles can present special challenges, but the actual winding process itself can be downright enjoyable—if we are adequately prepared. This article will outline procedures that take the mystery out of successful pole winding. The procedures are also helpful for stationary field coils and interpoles.
One of the first important steps is to draw the connection. Most synchronous rotors are connected in series; however, you don’t want to miss a series-parallel connected rotor (Figure 1).
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