Motor Circuit /Electrical Signature Analysis

MCSA helps detect and correct motor-related problems at an early stage resulting in energy saving. MCSA can be done along with a vibration data survey.

The condition of the rotor bars in an induction motor can be measured by performing a high-resolution frequency analysis on the input current to the motor.

A good way to detect motor current modulation is to perform a frequency analysis on the current, and look at the sidebands around 60 Hz spaced at twice the slip frequency. This can be done with a current clamp placed around one phase of the input line and connecting it to a spectrum analyzer.