Title :
Problems and detection of line anchor and substation ground grid corrosion
Author :
Lawson, Vernon R.
Author_Institution :
Allgeier, Martin & Associates Inc., Joplin, MO, USA
Abstract :
Corrosion due to electrochemical reactions and methods for dealing with it are discussed. To estimate the rates of substation ground grid and guy anchor corrosion, four tests are suggested, namely: (1) earth resistivity (2) guy current, (3) grid-to-earth potential; and (4) polarizing current. An analysis of test results will give the degree of corrosion and the form of correction necessary
Keywords :
corrosion; earthing; substations; corrosion detection; earth resistivity; grid-to-earth potential; guy current; line anchor; polarizing current; substation ground grid; Conductivity; Copper; Corrosion; Galvanizing; Polarization; Steel; Substations; Testing; Tin; Voltage control;
Journal_Title :
Industry Applications, IEEE Transactions on
