Edison Circuit
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charlie
Senior Member
- Location
- Indianapolis
Re: Edison Circuit
Name, I believe they are the same (that is a guess on my part).
Name, I believe they are the same (that is a guess on my part).
bphgravity
Senior Member
- Location
- Florida
Re: Edison Circuit
The system was originally designed by Edison himself for his Direct Current systems. In those days, conductor costs were the primary factor for electrical installations and this "new" system provided a means for supplying two circuits using only three wires. This made for significant savings.
This concept was borrowed by Tesla and Westinghouse during the developement of the alternating current system. It later became known as the multiwire branch circuit.
On a side note, I believe the 3? wye multiwire systems were once called the "round robin circuit".
The system was originally designed by Edison himself for his Direct Current systems. In those days, conductor costs were the primary factor for electrical installations and this "new" system provided a means for supplying two circuits using only three wires. This made for significant savings.
This concept was borrowed by Tesla and Westinghouse during the developement of the alternating current system. It later became known as the multiwire branch circuit.
On a side note, I believe the 3? wye multiwire systems were once called the "round robin circuit".
Re: Edison Circuit
I was just asking because I did trim with a guy yesterday, and I was looking at the panel and there was some 3-conductor, and I asked him what it was going to, and he said it was a "edison circuit"...which when he explained it, seemed just like a Multiwire BC.
I was just asking because I did trim with a guy yesterday, and I was looking at the panel and there was some 3-conductor, and I asked him what it was going to, and he said it was a "edison circuit"...which when he explained it, seemed just like a Multiwire BC.
bphgravity
Senior Member
- Location
- Florida
Re: Edison Circuit
I believe Edison used 2-100V generators for his typical system.
The system is identical to a 3-wire AC system except that the loads are connected between two positive leads of a DC generator which both share a common negative lead.
I believe Edison used 2-100V generators for his typical system.
Re: Edison Circuit
I never did see a DC circuit set up like the Edison AC system but I assumed the common would be a negative and a positive tied together? If you tied the positives or negatives together and used them as a common you wouldn't have the benefit of being able to balance it and have the same size common.
Ronald
[ December 21, 2004, 04:43 PM: Message edited by: ronaldrc ]
I never did see a DC circuit set up like the Edison AC system but I assumed the common would be a negative and a positive tied together? If you tied the positives or negatives together and used them as a common you wouldn't have the benefit of being able to balance it and have the same size common.
Ronald
[ December 21, 2004, 04:43 PM: Message edited by: ronaldrc ]
physis
Senior Member
Re: Edison Circuit
I tried to find a link to something regarding DC Edison circuits but all I could find was a bunch of spooky stories of the dreaded AC version of the Edison circuit.
From what's being said on the internet I think we should all start businesses that remove the dangerous and deadly multiwire circuits from innocent peoples homes. :roll:
I tried to find a link to something regarding DC Edison circuits but all I could find was a bunch of spooky stories of the dreaded AC version of the Edison circuit.
From what's being said on the internet I think we should all start businesses that remove the dangerous and deadly multiwire circuits from innocent peoples homes. :roll:
peter d
Senior Member
- Location
- New England
Re: Edison Circuit
Multiwire circuits are not bad, just misunderstood.
I use them whenever possible. I will be very upset if I ever see a code rule that bans them.
[ December 21, 2004, 05:32 PM: Message edited by: peter d ]
Don't believe everything you read.
Multiwire circuits are not bad, just misunderstood.
I use them whenever possible. I will be very upset if I ever see a code rule that bans them.
[ December 21, 2004, 05:32 PM: Message edited by: peter d ]
- Location
- Massachusetts
Re: Edison Circuit
Other than myself and Peter as well.
But what if......
Other than myself and Peter as well.
- Location
- Illinois
- Occupation
- retired electrician
Re: Edison Circuit
domnic,
Its just like two batteries in series, but with a center tap. Both are the same battery but with 2 in series you get 3 volts and with a center tap, you get +1.5, -1.5, and 3 volts.
Don
domnic,
Its just like two batteries in series, but with a center tap. Both are the same battery but with 2 in series you get 3 volts and with a center tap, you get +1.5, -1.5, and 3 volts.
Don
electricmanscott
Senior Member
- Location
- Boston, MA
Re: Edison Circuit
Originally posted by iwire:
But what if......
Other than myself and Peter as well.
Re: Edison Circuit
Midget; Iwire, Peter, Scott, Electricman2, Ed, Bennie,(RIP) and many other knowledgeable people here (like Charlie said the list is very long)can burst the naysayers bubbles in this wiring method.
It saves natural resources, reduces voltage drop, reduces wasted power, (wattage) saves the customer in installation labor, electric bills, etc...
Think about it in a bigger example, the service to your house is a Multiwire Circuit.
Roger
Midget; Iwire, Peter, Scott, Electricman2, Ed, Bennie,(RIP) and many other knowledgeable people here (like Charlie said the list is very long)can burst the naysayers bubbles in this wiring method.
It saves natural resources, reduces voltage drop, reduces wasted power, (wattage) saves the customer in installation labor, electric bills, etc...
Think about it in a bigger example, the service to your house is a Multiwire Circuit.
Roger
peter d
Senior Member
- Location
- New England
Re: Edison Circuit
At any rate, they will have to pry the 3-wire cable out of my cold, dead hands before I give them up.
Oh no.....not another list!!!!!!Originally posted by physis:
Oh man, you left me out Roger.
At any rate, they will have to pry the 3-wire cable out of my cold, dead hands before I give them up.
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