Maybe we are not talking about the same thing here. In any event, the Ah de-rating we are doing above estimates the battery performance under a load far in excess of the factory 20Hr load test. A fully charged Trojan T-125 can sustain a 12A load for 20 Hrs before it reaches 100% DOD (12*20 = 240...
It doesn't matter what happens when both buttons are pressed as this will never happen
HOGWASH How did you get so lucky to get perfect people??
ALWAYS design so you cannot engage both directions at same time.
itsmoked (Electrical) 2 Nov 05 2:31
abcd3286: Pulling more than the 20hr rate out of LA batteries definitely blasts the total energy available and must be considered.
Yes I know - as submarine electrician I learned early on that if on battery and you want the lights to stay on longer drop the...
I have studied the same questions and read book by Brant - good book. I have looked at only two predictions. Yes they vary but to my surprise not much.
You must remember they are only predictions which fall apart when prototyp or first production unit are tested.
ONe of the difficulties is...
OK here is how it SHOULD be done in modern era.
At service
the GROUND (green) is bonded to the grounding system (stakes water pipe etc).
The GROUNDED (white) aka Neutral is bonded to the ground at the service ONLY.
THIS is the only place they are connected.
All subsequent panels (sub panels)...
OK
supposedly there is no cost for reactive power ie what is required for magnetizing fields (motors etc).
Several people said this is not developed by the engine (or other prime mover of an alternator).
WHY then does
Seattle city light (a utility with a few alternators) tell me they have to...
I believe peak demand is measured in terms of Kw NOT Kw Hr.
The calculation used by utilities may vary by utility.
Seattle City light uses the average of the peak in the last 3 5 minute periods -- I believe.
Now that you got a number for demand the rate can vary by the utility. They can...
240V delta system with the midpoint of one winding grounded. 240V phase-to-phase, all combinations. By usual naming convention, phases A and C will be 120V to ground/neutral and phase B will be 208V.
Phase B is commonly called the wild leg.
I thought the voltage was higher than 208 (wild leg...
Did you solve the problem?
Where do you live? I'd take a crack at it if you are near Seattle.
I think you are going to have to use hydraulics. The cost of course is reduced mileage (battery consumption).
Have some BIG doubts about using another motor as a load.
I would use an alternator (AC) or generator (DC). Use a tank of water with baking soda for a load (place this outside in well ventilated area)
OR use a bank of heaters should keep the shop warm.
OR add another hot water tank and use...
