How does does a DC generator work?

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Discussion Overview

The discussion revolves around the workings of DC generators, particularly in comparison to AC generators. Participants explore the mechanisms involved in generating DC power and the role of components like slip rings and commutators.

Discussion Character

  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant describes the general operation of generators in power plants, emphasizing the conversion of heat into steam to drive turbines that generate AC power.
  • Another participant questions whether rectification is a method used in DC generators, suggesting a potential mechanism for their operation.
  • A participant mentions the use of a slip ring commutator in DC generators to convert the generated voltage to DC.
  • It is noted that the output from the slip-ring assembly results in a pulsating DC, which is not a perfectly constant voltage but maintains a consistent sign.
  • One participant shares a video that explains the operation of DC generators.
  • Another participant offers a teaching tool that illustrates the difference between slip rings and commutators, inviting others to reach out if interested.

Areas of Agreement / Disagreement

Participants express various viewpoints on the operation of DC generators, with some aspects being clarified while others remain contested, particularly regarding the nature of the voltage output and the mechanisms involved.

Contextual Notes

There are unresolved aspects regarding the specifics of rectification in DC generators and the implications of pulsating DC output. The discussion does not reach a consensus on these points.

Jake DAprile
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The way I understand most generators that are used in plants is that they take the heat form combustion or fission and use It to create steam to run a turbine with magnets on it that create AC power over a coil. how could a dc generator work?
 
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Jake DAprile said:
The way I understand most generators that are used in plants is that they take the heat form combustion or fission and use It to create steam to run a turbine with magnets on it that create AC power over a coil. how could a dc generator work?
Via rectification?
 
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The result of the slip-ring assembly is to produce a pulsating DC, not a perfectly constant voltage. It is still DC in that the potential does not change sign, but it is unsteady.
 
This video does a pretty good job explaining it.

 
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And a teaching tool for showing the difference between slip rings and a commutator.
P3160003.JPG

If somebody has a use for this, PM me and it's yours.
 

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