DETECTION OF FAULTS IN THE INSULATION IN THE STATOR SHEETS OF ROTATING ELECTRICAL MACHINES

Abstract:

This paper compares two methods for detecting short circuits and faults between the plates of magnetic cores, for which the tests were performed on sheet metal forming the stator of an induction motor, in order to determine the method of more effective screening. The methods under comparison are: Method of isolation test laminated stator core, recommended by the IEEE-56 Guide for Insulation Maintenance of Large Alternating - Current Rotating Machinery (10000 kVA and Larger) and flow variations method, which allows using two electromagnets or coils (sensor and pattern) on the plates, determine variations in magnitude and phase of the current flowing through them, locating points of failure.

Año de publicación:

2012

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