[Elecraft] OT: Whole House Generator
Jim Brown
jim at audiosystemsgroup.com
Thu Sep 7 17:52:49 EDT 2017
On 9/7/2017 1:15 PM, Doug Hensley wrote:
> I am going through the process of choosing a whole house home generator
It's worth thinking about your needs first. Key questions are"
1) What loads do I need to run from it? Get hard numbers, including
starting current for motors (refrigerators, well pumps, etc.) The 120V
loads can easily be measured with a Kill-A-Watt meter. You'll need a
clamp-on current probe for your VOM or scope to measure permanently
wired loads and 240V loads.
2) How often are power outages? How long do they last?
3) Do I really need to run A/C from a generator? Obviously depends on
climate, but also demands a bigger generator and a lot more fuel.
I have two generators. One is a Honda 2000i, which I can easily carry,
and use for portable hamming. The second is a 6.5kVA Honda (EU6500?)
that can be set for either 120VAC or 120/240 with a neutral. I use it in
the 120/240V mode. It's big enough to run my well motors.
I've rewired the breaker panel in my home to put all my "critical" loads
on one side of 120V -- lights, computers, TV, refrigerator -- and have
found that the little 2000i can run it all in econ-mode. That gives us
the option of using the smaller generator until we need to re-build the
water pressure during a long outage.
73, Jim K9YC
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