Quote:
Originally Posted by KyDan
Who says a standard non-inverter genny puts out modified sine wave?
I believe a true generator by design does put out sine wave.
The down side of non-inverter genny is that the gas motor has to run
at full speed all the time even with no load because the RPM is critical to
get 60 Hz output.
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Yes, a standard genny puts out the sine wave. It is the same as what is coming into homes.
This modified/true sine crap is relevant to the inverter style generators because they generate DC and have to convert (invert) it to AC. Not all inverters are created equal so inverter companies started to tout (properly so) when they created a proper sine wave.
A 3,600 RPM generator (alternator) naturally makes a proper 60 cycle sine wave.
The only issue is fluctuations in RPM, which can be caused by several things. One of them being surges from devices starting up.
I have two Generac 17,500 running watts (26,250 surge watts) portable generators for my home. They run my geothermal HVAC (6 ton), lights, refrigerators, microwave, water heater, TVs, computers, dishwasher, etc. In all, I have 145 amps @ 240 volts or 290 amps @ 120 volts... or somewhere between those two numbers for a mixture. 35,000 running watts total (52,500 surge watts).
Never had a problem with sensitive equipment.
I do have an EU2000i (companion) for my camper due to noise. Plan on getting another to parallel.
I have an old Briggs & Stratton open frame generator that puts out about 27 amps @ 240 volts. Although noisy, it is perfect for connecting to my 50 amp camper when noise is not an issue. I have many feet of cord to run the generator far away.
Of course my EU2000i is becoming more and more the goto generator even though its output pales in comparison.