新型聚合物水泥混凝土电气性能研究
发布时间：2018-03-04 11:47
本文选题：管道输电 切入点：聚合物混凝土 出处：《绝缘材料》2017年11期 论文类型：期刊论文
【摘要】：高绝缘、低成本的绝缘填充材料是新型固体输电管道设计的关键,针对新型聚合物水泥混凝土(PCC)的介电常数、介质损耗因数、局部放电量、雷电冲击耐受电压、工频电气强度等性能进行试验研究。结果表明:室温下PCC的介质损耗因数为0.062,相对介电常数为5.82。随温度升高PCC试样的相对介电常数略有下降,介质损耗因数有所升高。与常规交联聚乙烯相比,PCC的介质损耗因数偏大,相对介电常数较高。PCC试样的工频电气强度和雷电冲击击穿强度均略低,局部放电值达到180 p C,起始局部放电特性处于劣势。综合PCC的介电性能、电气强度和局部放电特性测试结果,PCC若用于新型固体输电管道,可以从优化配方、改良工艺两方面对PCC的电气性能进行进一步改善。
[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.
【作者单位】： 中国电力科学研究院;沈阳工业大学电气工程学院;V锿帐〉缌揪眉际跹芯吭，
本文编号：1565520
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