A new approach to the design of surface subsystems of polymeric insulators for HV and MV apparatus under AC voltage  

作　　者：Gian Carlo Montanari Debasish Nath Pasquale Cambareri 

机构地区：[1]Center for Advanced Power Systems,Florida State University,Tallahassee,Florida,USA [2]Dipartimento di Elettronica,Informazione e Bioingegneria,Politecnico di Milano,Milano,Italy

出　　处：《High Voltage》2023年第4期651-658,共8页高电压（英文）

基　　金：U.S.Department of Energy,Grant/Award Numbers:DE-AC36-08GO28308,ZGJ-9-92284。

摘　　要：The design of high voltage and medium voltage AC and DC standoff insulators,and,in general,of insulation systems where surface and interface properties are predominant factors,is based on specifications and standards that rely upon long-term experiences and lab testing.Surface insulating properties depend on electrical and thermal stresses,besides environmental factors,and the inception of extrinsic ageing phenomena,such as partial discharges,can be already a cause of reduced reliability and premature failure(for organic insulating materials).An innovative approach,based on field simulation,discharge modelling,and partial discharge inception measurements is presented by the authors,which can establish a solid basis to optimise insulation design for any type of supply voltage waveform.This method,the three-leg approach,is applied here to a cable system under AC sinusoidal voltage,but it can work for any type of insulation system,such as bushings,switch gears,transformers,rotating machines,and power electronics boards.

关 键 词：INSULATION APPROACH INSULATOR 

分 类 号：TM216[一般工业技术—材料科学与工程]