- 0 57812 W 10 18812 1216 V 4 5682 2 72 A 15222 20 4ov 13 3v Solar Panel Radio Repeater Wind Generator Battery A Assume 1 (602.21 KiB) Viewed 22 times
a) Assume that on a sunny summer day, the solar panel delivers its rated (midday) current for the equivalent of 6 hours. If you assume the 200 Ah deep cycle battery begins the day of solar charging (0 hours) at 30% capacity (ie. with 60 Ah of stored charge), how many Amp-hours are stored in the battery at the end of the first day of charging (i.e. after 6 hours)? Overnight, the solar panel produces zero current, but its shunt resistance remains connected. Calculate the stored charge in the battery at the beginning of the next day of charging i.e. after 24 hours). b) The tower is struck by lightning only a week after everything is finished. The wind generator, solar panel and battery are all unaffected, but the radio repeater has failed and become an open circuit. Calculate the night-time Thévenin equivalent circuit at the point where the failed radio repeater connects. Note: you should set the solar panel current to zero, but its shunt resistance should remain connected.