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Waveshape Triggering for Waveform Capture

Category: Analyzing Waveforms, Using PMI Recorders

Traditional waveform capture trigger mechanisms often relied on magnitude changes in line voltage, either from RMS voltage, or instantaneous line voltage changes. Although good for capturing events associated with voltage sags, swells, faults, etc., this method is difficult to use with events that don’t always cause a line voltage change. For example, a capacitor bank switch operation can cause waveform ringing, or voltage phase changes, without actually changing the overall RMS voltage level appreciably. If the thresholds are set so sensitively that those events are captured, many false triggers can also be generated for innocuous events.


This White Paper Includes:

  • Waveshape Triggering Mechanism

Download White Paper Here