Abstract
The solid insulations of electrical equipment are perpetually affected by various duration overvoltages. Electric stress of insulation depends on its thickness and amplitude of applied voltage. The damaged solid insulation may also influence characteristic parameters of partial discharges. The characteristic parameters of solid insulation quality should be permanently evaluated. Partial discharge monitoring provides reliable information necessary for basic maintenance of stator windings of motors and generators. Submitted paper deals with partial discharge measurements in stator windings during the increasing of applied voltage.DOI: http://dx.doi.org/10.5755/j01.eee.19.6.1902
Highlights
MethodAbstract—The solid insulations of electrical equipment are perpetually affected by various duration overvoltages
Insulation of high voltage rotating electric machines changes its properties due to acting of various operating factors: vibrations, high temperatures, heating and cooling cycles, operating voltage, overvoltages, pulse and dynamic loading [1]
Processes of thermal-oxidative destruction are present in high voltage insulation
Summary
Abstract—The solid insulations of electrical equipment are perpetually affected by various duration overvoltages. Electric stress of insulation depends on its thickness and amplitude of applied voltage. The damaged solid insulation may influence characteristic parameters of partial discharges. The characteristic parameters of solid insulation quality should be permanently evaluated. Partial discharge monitoring provides reliable information necessary for basic maintenance of stator windings of motors and generators. Submitted paper deals with partial discharge measurements in stator windings during the increasing of applied voltage
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