Yesterday's Tractor Co.
Shop Now View Cart
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
Classified Ads
Photo Ads
Tractor Parts

Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs

Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
Tool Talk Discussion Forum

Re: Different 3-phase question

[Show Entire Topic]  

Welcome Guest, Log in or Register
Author  [Modern View]
John T

04-22-2013 11:51:11

Report to Moderator

Yep I have 40 + years of real world experience. I was an AC Power Distribution Design Engineer and have a BSEE as part of my "formal education" as you call it from good old Purdue University a top notch Engineering School, so not to brag but YEP I DO KNOW SOMETHING ABOUT THAT LOL

To answer your question:

In a 120/240 Volt Three Phase Four Wire center Tapped DELTA, IF L2 is the Red/High Leg then:

Its 240 Volts L1 to L2 Its 240 Volts L2 to L3 Its 240 Volts L3 to L1 Its 120 Volts L1 to Neutral Its 120 volts L3 to Neutral Its 208 Volts L2 to Neutral (Red/High Leg)

Its the transformer between L1 & L3 thats center tapped with its center grounded and that point is the Neutral

In a 208 Y 120 Volt Three Phase Four Wire System

Its 120 L1 to Neutral Its 120 L2 to Neutral Its 120 L3 to Neutral Its 208 L1 to L2 Its 208 L2 to L3 Its 208 L3 to L1

So thats about as plain as I can describe it to a lay person sure hope this helps. If some "Professor" says different then Hes wrong and Im right is all I can tell you. NOTE sure there can be some slight different voltages (204, 206, 208, 210, 212 etc etc) depending on resistances and loads and the tap settings etc. etc. Im unsure that "Professor" understands the difference in a Delta versus Y configuration???

NOTE do NOTTTTTTTT feel bad if you cant understand this and sorry I can NOT put in a paragraph here what takes volumes of books to explain and years of engineering practice and experience to fully comprehend. I try my best to help and educate the fine gents here but I cant make them understand volumes of theory and years of expreience here in a few sentences BUT BY GOLLY I DO TRY MY BEST.

God bless you for your good thoughtful questions and sparky chat and I sincerely hope I helped you understand all this, sorry if I couldnt.......


[Log in to Reply]   [No Email]
[Show Entire Topic]     [Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:

Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a company you can trust and have generous return policies. Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ About Us ]

Home  |  Forums

Copyright © 1997-2016 Yesterday's Tractor Co.

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.

Yesterday's Tractors - Antique Tractor Headquarters