Patent ID: 8294303
Filing Date: 2012-10-23
Classification: H01L,H02S,Y02E

Abstract:
1. A photovoltaic power system comprising: a photovoltaic array comprising a plurality of electrically connected photovoltaic modules and a positive array terminal and negative array terminal to conduct the current produced by the photovoltaic array; a combiner box; a DC to AC inverter; a positive conductor electrically connecting a positive inverter terminal of the DC to AC inverter to the positive array terminal; a negative conductor electrically connecting a negative inverter terminal of the DC to AC inverter to the negative array terminal; and a first positive-conductor ground electrically connected by a switch to the positive conductor at the combiner box; a first negative-conductor ground electrically connected by a switch to the negative conductor at the combiner box; a second positive-conductor ground electrically connected by a switch to the positive conductor at the inverter; and a second negative-conductor ground electrically connected by a switch to the negative conductor at the inverter.