Patent ID: 9148045
Filing Date: 2015-09-29
Classification: G01B,G01M,G01N,G01R,H02K

Abstract:
1. Method for testing the tightness of an electric machine stator core, wherein the electric machine comprises a stator core formed of iron sheets and a rotor defining an air gap therebetween, the method comprising: introducing a test instrument connected to a support into the air gap, the test instrument including a plate, the support including a guide circumferentially connected to an outer face of the rotor core of the electric machine, and fixed in a longitudinal axial direction of the rotor core, and a cart being movable along the guide to reach circumferential positions of the stator core, the cart including a longitudinally extendable arm projecting along the longitudinal axis of the rotor core perpendicular to the guide, the test instrument being arranged on a terminal end of the arm distal to the cart; locally placing the test instrument in a zone of the stator core; and locally testing defined zones of the stator core by rotating the plate arranged on the arm about an axis defined within the plate between an insertion position and a testing position, from which the plate is introduced between the stator core iron sheets.