The laptop is so slow and I want to upgrade the hard drive. What would be the compatible hard drive for this computer to operate in a faster mode.
Do I need to replace the battery?
@phil.g00 we are trying to buy our own harmonics tester but we cannot find one even in Hongkong and China..
Is there any that you can offer while we are looking for a tester? Because somehow we don't trust the tester from the electric provider.
We installed a solar system in a residential address. The client wanted a net metering but to install a net metering, harmonics should be up to 5% in the electric provider and we are getting higher than 5%.. What should we do.
The inverter is not working, I tried to supply with dc and it doesn't turn on. I tried to supply with AC and it does turn on. What could be the possible fault? And what would be the solution?