DYNA JOURNAL ENGINEERING

Key words:

cálculo de campo electrostático, método de las soluciones elementales, método de cargas superficiales, configuraciones trifásicas tridimensionales, respuesta electrostática, sistema trifásico desequilibrado, electrostatic field calculation, basis set of solutions, surface charge method, 3D-three-phase configurations, electrostatic response, unbalanced three-phase system

Article type:

ARTICULO DE INVESTIGACION / RESEARCH ARTICLE

Section:

RESEARCH ARTICLES

This paper is a summary of the exhaustive electrostatic study of a three-phase conductors configuration using the basis set of solutions method and the surface charge method. The electrostatic responses of several three-phase configurations, with different radius and voltage settings, were studied. It was confirmed that the “distance between conductors/conductors radius” parameter (d/R) is appropriate to describe their behaviours.
It has been proved that the product of maximum field strength and the conductor radius remains unchanged for constant d/R. An empirical expression that relates this product to d/R has also been found. The limits of validity of the calculated values for the maximum electric field, depending upon the length of the conductors, have been established. It has also been found that when the distances between conductors are small, these configurations are very stable against unbalance of the phase voltages, but not of the line voltages.