本文選題：管道輸電　切入點：聚合物混凝土　出處：《絕緣材料》2017年11期 　論文類型：期刊論文

【摘要】：高絕緣、低成本的絕緣填充材料是新型固體輸電管道設計的關鍵,針對新型聚合物水泥混凝土(PCC)的介電常數(shù)、介質損耗因數(shù)、局部放電量、雷電沖擊耐受電壓、工頻電氣強度等性能進行試驗研究。結果表明:室溫下PCC的介質損耗因數(shù)為0.062,相對介電常數(shù)為5.82。隨溫度升高PCC試樣的相對介電常數(shù)略有下降,介質損耗因數(shù)有所升高。與常規(guī)交聯(lián)聚乙烯相比,PCC的介質損耗因數(shù)偏大,相對介電常數(shù)較高。PCC試樣的工頻電氣強度和雷電沖擊擊穿強度均略低,局部放電值達到180 p C,起始局部放電特性處于劣勢。綜合PCC的介電性能、電氣強度和局部放電特性測試結果,PCC若用于新型固體輸電管道,可以從優(yōu)化配方、改良工藝兩方面對PCC的電氣性能進行進一步改善。
[Abstract]:High insulating and low cost insulating filler material is the key to the design of new solid transmission pipeline. The dielectric constant, dielectric loss factor, partial discharge quantity, lightning impulse resistance voltage of the new polymer cement concrete (PCC) are studied. The results show that the dielectric loss factor of PCC at room temperature is 0.062 and the relative dielectric constant is 5.82. The relative dielectric constant of PCC sample decreases slightly with the increase of temperature. Compared with the conventional crosslinked polyethylene, the dielectric loss factor of PCC is higher, and the electrical strength of power frequency and the lightning impact breakdown strength of the sample with higher relative dielectric constant are slightly lower than those of conventional crosslinked polyethylene. The partial discharge value reaches 180pC, and the initial partial discharge characteristic is at a disadvantage. The dielectric properties, electrical intensity and partial discharge characteristics of PCC can be optimized if it is used in a new type of solid state transmission pipeline. The electrical properties of PCC were further improved in two aspects.
【作者單位】： 中國電力科學研究院;沈陽工業(yè)大學電氣工程學院;V锿帳〉緦揪眉際躚芯吭，

本文編號：1565520