Impulse corona discharge energy around the conductors

Impulse corona discharge around the conductors and the overvoltage wave traveling on an overhead line were experimentally studied. Some of the experiments aimed at establishing a general relation for the charge-voltage characteristic of the coronal discharge around the conductors. During the tests four types of single conductors were used, with 0.010 m, 0.016 m, 0.031 m, and 0.065 m diameters, as well as three types of bundled conductors (with 2, 3, and 4 subconductors having a 0.031 m diameter, the distance between subconductors being 0.4 m). The applied voltage impulses had positive and negative polarity. After analyzing the experimental results and the computing relations, conclusions are drawn on the impulse corona discharge energy.<>