Analysis of elevated neutral-to-earth voltage in distribution systems with harmonic distortion

  • Collins E
  • Jiang J
  • 7


    Mendeley users who have this article in their library.
  • 8


    Citations of this article.


The proliferation of power-electronic loads in the distribution system has raised concerns about their impact on the neutral-to-earth voltage [(NEV) or stray voltage]. It is desirable to analyze the effect of topology unbalance and harmonic distortion acting simultaneously to assess their influence on elevated NEV. A multiphase harmonic load-flow algorithm for radial distribution systems is presented for NEV analysis. A transmission-line model is developed that includes the neutral branch such that the NEV is available directly. Harmonic interaction is introduced by using a model for a single-phase rectifier. A well-documented IEEE radial feeder is used to demonstrate the algorithm. Results from several tests on different combinations of linear and nonlinear loads are presented and discussed. These tests show that triplen harmonics can have more effect on elevated NEV than unbalance acting alone.

Author-supplied keywords

  • Earth return path
  • Grounding
  • Harmonic analysis
  • Multiphase load flow
  • Neutral-to-earth voltage (NEV)
  • Radial distribution systems
  • Stray voltage
  • Transmission-line model

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Edward Randy Collins

  • Jian Jiang

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free