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高压电器  2015 

高压支柱瓷绝缘子断裂分析

DOI: 10.13296/j.1001-1609.hva.2015.07.013, PP. 69-73

Keywords: 支柱绝缘子,青边瓷,断裂,分析

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Abstract:

高压支柱瓷绝缘子断裂事故频有发生,严重威胁电网的安全运行。文中结合某站绝缘子断裂事故,对其进行了宏观检查及微观组织检测,分析结果表明该类型绝缘子存在缺砂及胶装气孔严重缺陷,同时微观组织中存在气孔率偏高、玻璃相裂纹、TiO2杂质相等缺陷,在微观上会形成裂纹源,导致了绝缘子强度的降低,并对其提出了相应的监督措施,对设计、制造、运行有一定的借鉴意义。

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