DINIZ, L.; DINIZ, Larissa.
Resumen:
The majority electrical systems disconnections are caused by failures in isolators,
which in most cases are related to partial discharges of the corona type. The occurrence
of the corona phenomenon in transmission lines means charge losses, electromagnetic
interference and material wear, besides other damages. There is a growing concern among
researchers about the behavior of insulators. The high voltage tests that characterize the
insulators under the corona effect can be costly or not always feasible. Therefore, this
work presents an analysis of the electric field distribution along six of 69 kV insulators,
using simulation, compared to a quantification of photons obtained by measures of a
ultraviolet emission camera, at experimental tests. The main goal is representing corona
effect in a computational environment. In addition, an equation is proposed that relates
the number of photons and the electric field.
