Edisons dc (1 Viewer)

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Can anyone describe for me the process that edison originally used to produce DC when he built his original electric companies?
 

clem

Science Advisor
1,292
14
There was a commutator on his generator's armature.
 

zoobyshoe

Bipedal Hairy Critter
5,817
1,268
Can anyone describe for me the process that edison originally used to produce DC when he built his original electric companies?
Your question is peculiar. He didn't use a "process". He generated electricity with a device. His generators were series wound DC generators referred to as "dynamos" at the time. The dynamos were driven by coal-fired steam engines. He manufactured all his dynamos himself and often tinkered with the engineering of them.

Series wound dynamos are 'self exiting', meaning, there are no external permanent magnets used. Simply turning the rotor causes electricity to be generated from the small residual magnetism in the iron components. This current is fed through the field coils on its way out of the system which increases the strength of the magnetic field which, in turn, increases the strength of the current generated. It levels off for any given speed of rotation, of course.
 
Coal fired steam engines was what I was wondering. Thanks. My class was watching a video on Tesla, and we were just curious.
 

zoobyshoe

Bipedal Hairy Critter
5,817
1,268
Coal fired steam engines was what I was wondering. Thanks. My class was watching a video on Tesla, and we were just curious.
Tesla/Westinghouse differed not only in adopting AC for long distance transmission of power but also in being pioneers of hydroelectric systems.
 

The Physics Forums Way

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving
Top