SPACE CHARGE AND CONDUCTION CURRENT MEASUREMENTS AS A MEANS TO DETERMINE THRESHOLDS FOR ELECTRICAL AGING OF HVDC INSULATING MATERIALS

机译：空间电荷和导电电流测量方法，用于确定高压直流输电绝缘材料的电老化阈值

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In this paper some results are presented of two studieson the characterization of solid insulating materials bymeans of their threshold for electrical aging. Short termtechniques are proposed to determine the threshold.The paper is authored by the universities of Bolognaand Delft. At both locations a similar technique wasused to infer a threshold for electrical aging, albeit fordifferent types of insulating materials. In Bologna semi-crystallineXLPE materials were studied that are meantto be used in HVDC polymer cables. In Delftamorphous Polycarbonate materials were studied thatare commonly used in combination with oil in non-energyinsulating systems like X-ray and radar. Formost materials a threshold was found. Thresholdsobtained by space charge measurements using the PEAmethod and by conduction current measurements are ingood agreement. In the course of an aging process thethreshold shifts, making it an indicator of an ongoingaging process.

机译：本文通过对固体绝缘材料的电老化阈值进行表征的两项研究给出了一些结果。提出了短期技术来确定阈值。本文由博洛尼亚大学和代尔夫特大学共同撰写。尽管绝缘材料的类型不同，但在两个位置都使用了类似的技术来推断电老化的阈值。在博洛尼亚，研究了旨在用于HVDC聚合物电缆的半结晶XLPE材料。在德尔福特非晶聚碳酸酯中，研究了在非能量绝缘系统（例如X射线和雷达）中通常与油结合使用的材料。对于大多数材料，找到一个阈值。通过使用PEA方法进行空间电荷测量和通过传导电流测量获得的阈值不一致。在老化过程中，阈值会发生变化，这表明该过程正在进行中。

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《International conference on large high voltage electric systems;CIGRE 2000》|2000年|p.1-5|共5页
会议地点 Paris(FR);Paris(FR)
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P.H.F. MORSHUIS; J. BEYER; G.C. MONTANARI;
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High Voltage Laboratory Delft University of Technology Mekelweg 4 2628 CD Delft The Netherlands;

Delft University of Technology The Netherlands;

University of Bologna Italy;

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2. The role of trapped space charges in the electrical aging of insulating materials [J] . Dissado L.A., Mazzanti G. IEEE Transactions on Dielectrics and Electrical Insulation . 1997,第5期

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3. Polyethylene/Graphene Nanoplatelet Nanocomposite-Based Insulating Materials for Effective Reduction of Space Charge Accumulation in High-Voltage Direct-Current Cables [J] . Ji Sun Park, Young Sun Kim, Hyun-Jung Jung, Journal of nanomaterials . 2019,第1期

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SPACE CHARGE AND CONDUCTION CURRENT MEASUREMENTS AS A MEANS TO DETERMINE THRESHOLDS FOR ELECTRICAL AGING OF HVDC INSULATING MATERIALS

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