On Jan 13, 5:50*pm, wrote:
On Sun, 13 Jan 2013 01:30:53 +0000 (UTC), gregz
wrote:









"Existential Angst" wrote:
Awl --

In a portable generator.

Does one type of load vs the other make it more difficult for a typical
portable generator to maintain constant voltage?
Esp at a current approaching the continuous current limit of the generator.

I ask bec the mfr claims 1-2% regulation. *A small miller welder is causing
12%+ variation, within the current limitations, with the voltage variation
being fairly proportional to load. *I'm assuming a transformer load is
substantially inductive?

I haven't yet tested it with purely resistive loads, cuz, well, this would
require a lot of heaters, a pita to wire up.

All the generator cares is how much real power it takes to spin. It's not
measuring LC, just measuring the final outcome. 1-2 % really surprises me.

No, it cares about the current being supplied. *Heating is done by the
current, not the real power generated. *Generators are rated in KVA,
not watts.

Watts generated (in any conductor = Amps squared X resistance.

Poor power factor increases amps which means more heat has to be
dissipated in the generator.
(in the whole circuit in fact)