A dry-type general-purpose power transformer is observed to be operating above its rated tempera- to 2009 gelby ture. What are some possible causes?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Can someone please help me to answer the following question.
A dry-type general-purpose power transformer is
observed to be operating above its rated tempera-
ture. What are some possible causes?
Transcribed Image Text:A dry-type general-purpose power transformer is observed to be operating above its rated tempera- ture. What are some possible causes?
Expert Solution
Step 1

There are several possible causes for a dry-type general-purpose power transformer operating above its rated temperature:

  • Overloading: If the transformer is being used to supply more current than it is rated for, this can cause the temperature to rise above its rated temperature.
  • Ambient temperature: The surrounding air temperature can play a role in the temperature of the transformer. High ambient temperatures can cause the transformer to heat up faster than it can dissipate heat.
  • Insulation degradation: Over time, the insulation in the transformer may degrade, causing it to operate at a higher temperature than it should.

 

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