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Analyzing Voltage Sags with Event Change

Category: ProVision, PMI Products, Power Quality, PQ Data Analysis

Understand voltage sags, event change, and how to properly use event change to identify & analyze sags.



Identifying the sources for voltage sags can be a somewhat complicated task.


Graphs such as waveform capture can obscure the essentials with an RMS-based voltage sag.


PMI provides a triggered record type created specifically for capturing voltage events, and specifically to determine if the load being monitored is the cause of the event.


This white paper will hone in on this specific triggered record type – Event Change – and how to use it to identify voltage sags and determine if the monitored load is the cause of the sag, or merely responding to it.


This White Paper Includes:

  • Voltage Sag Causes and Definition
  • Event Change
  • What to Look For

Download White Paper Here