ANALYSIS OF PV GENERATOR INSULATION AND LEAKAGE CURRENTS.RELEVANCE FOR PERSONAL SAFETY

摘要

The adaptation and application of some active protective measures against electric shocks inphotovoltaic (PV) generators that involve the utilization of protective devices (PD's) require a deep knowledge of thebehaviour of electric insulation of the PV generator. In this paper we propose a model of equivalent electrical circuitthat characterizes this insulation and that will be used for the electrical risk analysis and subsequent design ofprotection in grounded and ungrounded PV generators. We investigate the meteorological variables that influence onthe insulation in order to determine the protection margin of the PD's against electric shocks in grounded andungrounded generators.