Gaining control on anomalous discharge as an effective way to increase reliability of work of outdoor HV insulators

The modern design of outdoor HV insulators is determined by rules which follow from characteristics of flashover mechanisms, such as: 1). The leader-streamer mechanism of breakdown of gaseous gaps close to dielectric surface under impulses of overvoltages, (determines necessary height of insulator, and also the form and sizes of its electrode system); 2). The mechanism of flashover of insulator on an AC by partial arcs with polluted and humidified surface, (determines number of sheds, its profile and size). As a result of our research, [1-5], an alternative flashover mechanism of HV insulation was discovered and researched. The mechanism was named - anomalous discharge (AD). As it was discovered, AD-mechanism has essential practical value since it´s capable to generate full flashovers on majority of modern insulators at much smaller voltages than it was considered earlier, (lightning and switching overvoltages and also on an AC). This research is devoted to efficiency of non-standard ways for control of AD with purpose to increase reliability of work of power energetic objects as a whole, i.e. increase real BIL of their insulation.