Testing cable system reliability after commissioning and during operation life:in medio stat virtus?
作者机构：Center for Advanced Power SystemsFlorida State University2000 Levy Avenue FLUSA DEIUniversity of BolognaViale del RisorgimentoBolognaItaly Prysmian S.p.A.Via ChieseMilanItaly
出 版 物：《High Voltage》 (高电压（英文）)
年 卷 期：2021年第6卷第1期
页 面：34-41页
核心收录：
学科分类：080802[工学-电力系统及其自动化] 0808[工学-电气工程] 08[工学]
主 题：apparatus insulation operation
摘 要：Quality control,commissioning and diagnostic tests on insulation systems of electrical apparatus are necessary to reduce the failure risk under operation,eliminate infant mortality failures and reduce the impact of ageing on insulation system *** study tries to establish a path which,based on the statistical-phenomenological modelling of the hazard rate,or bathtub curve,drives in the choice of test overvoltage and *** choice of the test voltage and its waveform should be made carefully to improve reliability(reduce failure hazard)in any section of the bathtub *** may require,however,different choices depending on the section which corresponds to the planned *** example,large overvoltages could be acceptable to remove the infant mortality to ensure the highest reliability of newly commissioned apparatus,but they can incept highly energetic,and,thus,fast degradation mechanisms on apparatus operating on the field for a period of time,that can worsen,rather than improving,the insulation system *** to partial discharge measurement during any overvoltage test seems to be the optimal solution to find the most appropriate overvoltage for any type of testing need,leveraging the Latin concept that‘in medio stat virtus’.
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