Impacts on insulation resistance of thin film modules: A case study of a flooding of a photovoltaic power plant in Thailand.

ABSTRACT: Effects of high humid weather conditions on photovoltaic (PV) modules were examined in this study, particularly insulation resistance. Three types of tests were conducted which include leakage voltage test, leakage current test, and wet leakage current test. Due to the usual field constraints in the study of insulation resistance, which limited measurements of leakage current, assurance was made that representative sampling were conducted. The study found a high number of modules with low insulation resistance and high leakage voltage values, which can interrupt the PV plant operation. High leakage voltage creates safety hazards issues. About two third of the samples, which showed deep moisture ingress in the modules, could not pass the minimum criterion of IEC 61646 standard for wet insul

SUBMITTER: Ketjoy N 

PROVIDER: S-EPMC9484638 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature