Merits and Demerits of 50HZ and 60HZ AC system

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Discussion Overview

The discussion revolves around the merits and demerits of 50 Hz and 60 Hz AC systems, exploring their efficiency, practicality, and potential for change in the context of electrical distribution systems.

Discussion Character

  • Debate/contested, Technical explanation

Main Points Raised

  • Some participants note that transformers are larger for 50 Hz due to lower efficiency at this frequency.
  • One participant compares the choice between 50 Hz and 60 Hz to a preference between Coca Cola and Pepsi Cola, suggesting a subjective aspect to the discussion.
  • Another viewpoint suggests that the relative advantages of either frequency may not justify the costs associated with changing existing systems.
  • There is speculation about the future of electrical distribution, with one participant proposing that a multi-voltage DC distribution system could change the current preference for AC frequencies.
  • Concerns are raised about the feasibility of running certain loads on DC, contingent on the development of appropriate technology.

Areas of Agreement / Disagreement

Participants express differing opinions on the merits of 50 Hz versus 60 Hz, with no consensus on which is better. The discussion includes both technical considerations and subjective comparisons, indicating a lack of resolution.

Contextual Notes

Participants mention efficiency and cost implications without providing specific data or definitions, leaving some assumptions and technical details unresolved.

sirsajid
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What are the merits and demerits of 50 Hz and 60 Hz AC system? Which one is better?
 
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Transformers need to be a little bigger for 50Hz because it is less efficient in lower frequency.
 
Probably the relative merits of one vs the other are not enough to justify the cost of anyone changing, so they will stay different.
 
They will probably stay unchanged until a multi-voltage DC distribution system can be made to work efficiently.
That may not be too far in the future. There are not a vast number of loads that couldn't be run on DC - at least there wouldn't be if the appropriate technology was already available for the distribution system. Just think - multiphase induction motors with the speed controlled by the frequency of the supply. (That's not BS, is it?)
 

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