Blake Parker
Technical Education Committee Member
Integrated Power Services
Field drying of windings introduces unique challenges when compared to drying out windings in the service center. Whereas the machines are fully disassembled in the shop, varying levels of disassembly, depending on the design, are possible in the field. NEMA and small frame machines are typically best suited for removal and shipment to a service center for a true steam and bake. Cases exist where access or other concerns make this an exception. While there are mechanical concerns to consider as well, this article covers only the drying of the winding. The techniques listed below broadly cover stator windings, armatures, field poles, wound rotors and rotor poles.
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