The ESA “Online” test is carried out with the system in motion, connecting amperometric clamps and voltmetric tips to the systems, to acquire the current and voltage waveforms passing upstream and downstream of the drives.
The data collected are processed and analysed according to the type of load that is occurring, extrapolating FFT spectra and waveforms.
The anomalies are “extracted” from the acquired data in order to emphasize them and therefore to be able to analyse them punctually and precisely, based on the technical characteristics of the systems under control.
The test requires the system to operate at constant speed for about 60 seconds and can be applied to AC and DC motors, generators, inverters or drives.
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