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Spotting Loose Neutrals with Waveform Capture

Category: Power Quality, Analyzing Waveforms, Voltage, Loose Neutrals

Spotting Loose Neutrals with Waveform CaptureSpotting Loose Neutrals with Waveform Capture_01

Read how to identify loose neutrals in waveform capture data before more serious symptoms occur.


A “loose neutral” in a residential location can cause equipment damage and even a house fire. An open neutral may start as a high resistance connection that shows subtle signs in waveform capture data before becoming more obvious as classic opposing voltage swells and sags in the stripchart.


Recognizing the pattern of a loose neutral in the waveform data allows for recognition of a possible problem before it becomes severe. Here, the signs of a high resistance or open neutral connection are shown as they appear in waveform capture data.


This Whitepaper Includes:

  • Background
  • Loose Neutrals in RMS Data
  • Loose Neutrals in Instantaneous (Waveform) Data

Download White Paper Here