The Method and Application Analysis of the Metal Oxide Arrester Condition Evaluation
Guo Le · Insulators and Surge Arresters · 2013
The method and procedure of the condition evaluation about the metal oxide arrester are expounded in detail, and analyzes the application of the evaluation results of 220 kV Nanmudong metal oxide arrester is analyzed deeply, the key factors that influence MOA evaluation result are the criterias which has large weight, such as the leak tightness, external insulation level, the combine condition of sheath and flange, On-line monitoring leakage current meter status and instructions, electrical test, etc. The most common problem of arrester evaluation are: the poor integrity of equipment foundation data, the uncomprehensive equipment information of production management system, non-uniform format, low timeliness rate of input for Information changes, etc.