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?
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.
ChapterMA: Math Assessment
Section: Chapter Questions
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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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