On some operating modes of a submersible induction electric motor

Object of research: induction submersible electric motor as a part drive centrifugal pump.
 Subject the non-nominal operation modes motors, including wedging.
 Purpose creation research methodology motors at operation, variation frequency feeding voltage and its magnitude.
 Methods theory electromechanical transformation energy, digital modeling, statistical data processing, methods designing experiments.
 Main results relevance in conditions is substantiated; technique asynchronous operating built; proposed tested on example ESP unit wedging mode.