Long term reliability test system for distribution lightning

摘要

The present invention relates to a long-term reliability of the testing device power distribution arrester, power distribution fatigue group consists of a large element and a characteristic aegwan, it is to protect the equipment and the line from an abnormal voltage in the distribution lines. However, the arrester failure aegwan when the explosion occurred due to human life, and there is a risk of property damage and ensure proper replacement cycle of the diagnostic criteria is an urgent situation. However, accelerated life testing is carried out at home and abroad is an exact replacement is a difficult situation in the field of cycles and diagnostic criteria ensure driving conditions because it is limited to the characteristic evaluation device porcelain. The present invention can calculate an appropriate replacement standards and criteria and possible characteristic element test being performed in the existing international standards subjected to a temperature and humidity control in the actual lightning protection state to evaluate the degree arrester deterioration in conditions such as field conditions which will develop the arrester long-term reliability test equipment. This device is turned on and can simulate an accelerated aging by humidity voltage, observe the morphological change of the leakage current according to the degradation progress and to analyze it appropriate replacement intervals and criteria determined suitable for the use environment of the arrester about the actual lightning arrestor the advantage would be possible to. It is therefore possible to determine effective lightning protection attribute element testing the composition to accelerated aging conditions in the arrester finished state, by enabling analysis of the degradation tendency of the accelerated aging degradation diagnosis based on determining and replacement of the actual lightning protection period as possible in accordance with the international standard .