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Title: Stray current interference control for HVDC earth currents

High-voltage direct current (HVDC) transmission lines exist around the world, with several in the US. When one conductor must be taken out of operation (in case of emergency), the earth may be used as an alternate conductor. The earth current may be accumulated on and discharged from underground metallic structures that cross the voltage gradient created by the current. Test results on two lines showed that stray current interference is not a major problem if mitigated properly.
Authors:
 [1] ;  [2]
  1. PSG Corrosion Engineering/Corrpro Cos., Detroit, MI (United States)
  2. Corrpro Companies Inc., Spring, TX (United States)
Publication Date:
OSTI Identifier:
72866
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Performance; Journal Volume: 34; Journal Issue: 6; Other Information: PBD: Jun 1995
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; HVDC SYSTEMS; LEAKAGE CURRENT; CONTROL; POWER TRANSMISSION LINES; ELECTRIC GROUNDS; UNDERGROUND FACILITIES; MINNESOTA; NORTH DAKOTA; PERFORMANCE TESTING