Method and system for detecting a condition of an electric machine

A method of detecting a condition of an electric machine using a portable diagnostic device, wherein the portable diagnostic device includes one or more sensors for measuring at least one physical parameter associated with the electric machine in at least two axes, the method comprising:

• measuring the at least one physical parameter associated with the electric machine, at a first position, along a first axis and a second axis of the at least two axes, wherein the first axis is at a first angle to an axis of the electric machine and the second axis is at a second angle to the axis of the electric machine, wherein the second angle is distinct from the first angle;
• determining a first ratio of a first measurement of the at least one physical parameter in the first axis and a second measurement of the at least one physical parameter in the second axis at the first position;
• identifying a spatial distribution from one or more spatial distributions associated with one or more conditions of the electric machine stored on a database, based on the determined first ratio, wherein each spatial distribution from the one or more spatial distributions is associated with one of a normal condition and a plurality of fault conditions, and includes an array of measurements of one or more parameters and corresponding information regarding points of measurement about the electric machine;
• and
• identifying the condition of the electric machine based on the identified spatial distribution, wherein identifying the condition of the electric machine further comprises:
• adapting the identified spatial distribution for the electric machine using the first measurement and second measurement, and
• determining one or more anomalous regions in the modified spatial distribution, wherein each anomalous region includes a cluster of proximal measurements in the modified spatial distribution;
• wherein the one or more spatial distributions are populated and stored on the database by plurality of spatial distributions measuring a plurality of physical parameters at a multiplicity of points in one or more planes and axes around one or more electric machines.