2015年10月1日星期四

Line arrester

MOA grounding wire should be connected directly to the distribution transformer shell, then shell and then connect with the earth. That the surge arrester ground wire is connected directly to the earth, and then another from the ground stake lead a ground wire to the transformer housing practice is wrong. In addition, metal oxide varistor testing grounding line is to be as short as possible to reduce the residual pressure. Regularly Organic composite arrester insulation resistance measurement and leakage current test, if it is found MOA insulation resistance significantly reduced or breakdown should be replaced immediately in order to ensure safe and healthy operation of distribution transformer.