Posted by 440roadrunner on April 28, 2009 at 14:43:44 from (98.145.76.31):
In Reply to: Electric math problem posted by jdemaris on April 28, 2009 at 13:30:21:
Just a few ramblings in general
Be very careful about efficiency. I haven't tested this, but you can, I think. The draw of the refer unit may well be different on the inverter because of differences in sine wave purity, actual output voltage, etc. so you need to measure that under those conditions, and average over probably several days
Also, The starting load may affect the amp hours rating somewhat, especially if for some reason the thing short cycles I can imagine that inverter "droop" could cause significant higher starting loads on the inverter than on goo solid AC, especially if the batteries are down.
Last is your amp-hour rating. What conditions are those batteries rated for, I.E, the old so called "20 hour" rating? You DO realize that you cannot simply use the mathematical product of an amp hour rating and come up with the true capacity? That is, these ratings are sort of averaged at best, a guesstimate in the middle, and sometimes an outright lie by the battery supplier at worst.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Antique Tractor Wiring Basics - by Curtis von Fange. One of the most neglected parts of old tractors is the wiring. After sitting in the elements for half a century or more much equipment wiring has deteriorated to sparsely covered strands of copper or other metal. Plastic insulation has cracked, mice have eaten through the older clothed style coverings and the exposed wires have reacted to winter moisture and salts by turning blue and powdery. Terminal ends have corroded, rusted or just plain evaporated away. Aged wires not only keep an engin
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
