My friend has a system made from a multiplu-II 48/5000/70, mppt 150/100 and 19 solar panels of 300w , on the roof of his store , and a disel generator 2000w (he dosent have conection on the national network)
He has a house at 40m from his store but the cable of feeding the house has 60m between the house and the inverter . the problem is that when his water pump is starting (3000W) is making a power variation and a frequency variation very big :
-volt in faling from 230v to 180v for a second
-and frequency from 50Hz to 32 Hz for a second
and becouse of this variation the led lamps (8psc) has burn.
how can i help him to stabilize the variation
it is posible to and a (ups-with battery) stabilazer of 7000w near the house panel ?
please give me some ideas. Thanks.