System for condition monitoring of electric machine, mobile phone and method thereof

It is proposed a system for condition monitoring electric machine and the method thereof. The system includes a portable unit, being adapted for free movement around said electric machine; a magnetic field sensor, being adapted for measuring magnetic field intensity at at least one of a plurality points of a path of said free movement; a processing unit, being adapted for receiving at least one corresponding magnetic field intensity signal from said magnetic field sensor, comparing at least one magnetic field intensity value to at least one corresponding expected value, and determining, based on the comparison, if a fault is present in the electric machine; wherein: said magnetic field sensor and said processing unit are integrated into said portable unit. And the method includes steps of moving said portable unit to at least one point of a plurality points of a path of said free movement around said electric machine; measuring at least one magnetic field intensity at said at least one of a plurality points of a path of said free movement; and comparing at least one magnetic field intensity value to at least one corresponding expected value, and determining, based on the comparison, if a fault is present in the electric machine.