Yahoo Message Number: 66976 (http://groups.yahoo.com/neo/groups/Country-Coach-Owners/conversations/messages/66976)
Can anyone tell me how the speaker grills on 2006 Country Coaches? I believe most of the models from this year use the same speakers use the same grills. I assume that they just pull off, but I don't want to take a chance on pulling out the speaker because the grills seem to be on pretty tight.
Thanks for any help!
Jan
2006 Inspire
51723
Yahoo Message Number: 66987 (http://groups.yahoo.com/neo/groups/Country-Coach-Owners/conversations/messages/66987)
Don
I find your email technicaly correct, not like some comments I read on our RV 50A service. However as an Electrical engineer specialising in mining I find your comment that 180 degrees out of phase and of instantateous opposite polarity are not the same. 120V on one leg and 120V on the second leg but 180 degrees out of phase or of instantaneous opposite polarity will give 240V between the two legs while giving 120V between either leg and the neutral. Each leg can draw 50A at 120V giving 6000W X 2 legs 12000W. However because each leg is 180 degrees out of phase with each other at 240V only 50A will be recorded but still giving 50A at 240V giving 12000W. And as you so correctly say if each leg is balanced at 50A the neatral will carry no load. I am assuming unity power factor. I feel the terminology is different but not the actuality. Only used to heavy engineering so if I'm wrong please educate me. Always keen to learn even if, as you, I am over 70.
Regards
Peter J
Posted by: "Don Seager" dmseager@... (dmseager@...) donald_seager Fri Dec 31, 2010 9:21 am (PST)
Other Don, No offense intended but I will have to defend my knowledge of 120/240 volt services. It was how I made my living as a Power Distribution Engineer.
A 120/240 volt 50 amp service is rated at 50 amps on each leg at 240 volts not 120 volts. The fact that the neutral point is connected 1/2 way between the 240 volts on the transformer secondary coil is not the point. If the load is balanced between the two legs and drawing 50 amps the current in the neutral will be zero. The neutral current is always the difference between the current in the two 240 volt legs. The reason is that the 2 -50 amp currents are of instantaneous opposite polarity (not 180 degrees out of phase) and when they add together returning to the power source they effectively cancel each other leaving only the imbalance current to travel back to the source on the neutral.
Yahoo Message Number: 67068 (http://groups.yahoo.com/neo/groups/Country-Coach-Owners/conversations/messages/67068)
Freind get out your Ugley's Book and read as I did. Remember three phase! One Nuetral!I know were only going over 120/240 Volts single Phase four wire! BTW whare were to Guys as we sure could of used you on our Team at Cat! I enjoy all the posts! Ken 99 Allure 30356 in Yuma on 50 Amp! Happy New Year!