Transformer Help: Immediate Effect of Short Primary Winding

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Discussion Overview

The discussion revolves around the immediate effects of shorting the primary winding of a transformer, considering different scenarios such as whether the transformer is connected to a power source or not. The focus includes theoretical implications and practical consequences of such an action.

Discussion Character

  • Technical explanation, Homework-related

Main Points Raised

  • Some participants propose that if the transformer is not connected to a power source, there will be no effect from shorting the primary winding.
  • Others argue that if the transformer is connected to a power source, shorting the primary will short the power source as well, potentially leading to circuit breakers or fuses cutting the power.
  • A participant mentions that a complete short circuit across the primary winding would leave the transformer unaffected, although it would require repair before further use.
  • It is noted that a partial short circuit could result in damage to the remaining winding that is not shorted.
  • Another point raised is that a short involving just a few turns of the winding could lead to overheating of the transformer.

Areas of Agreement / Disagreement

Participants express differing views on the effects of shorting the primary winding, particularly regarding the conditions of connection to a power source and the extent of the short circuit. No consensus is reached on the overall impact.

Contextual Notes

The discussion does not clarify assumptions regarding the type of transformer or the specifics of the power source involved, which may influence the outcomes described.

glasgowkizz
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If the primary winding of a transformer is shorted, what will be its immediate effect to the transformer?
 
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It depends whether the transformer is connected to a power source or not.

If it isn't there will be no effect at all.

If it is, then the power source will be shorted out as well and this would cause circuit breakers or fuses to cut the power.

If it was a complete short circuit, from end to end of the primary, the transformer would be unaffected, although it would have to be repaired before it could be used.

If it was a partial short circuit, the remainder of the winding that wasn't shorted could be destroyed.

A short of just a few turns can cause overheating of the transformer.
 
Thanks a lot for answering!
 
(Thread moved to Homework Help, but too late...)
 

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