How to estimate the Rating of Transformer

AI Thread Summary
Estimating the rating of a transformer, such as a 50 KVA unit, typically involves analyzing the load requirements of the area it serves. A common method is to sum all potential loads; however, this can lead to an overestimation since not all loads will operate simultaneously. A more practical approach considers the diversity factor, which accounts for the likelihood of simultaneous usage. Resources like the paper from Inspectapedia can provide further insights into calculating electrical loads. Understanding these principles is essential for determining the appropriate transformer size without incurring unnecessary costs.
otomanb
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T/F=Transformer
usually T/F is used according to the load of the area, street etc. How they estimate that 50 KVA transformer is enough for this load,street? any formula or method please explain
::Thanks
 
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The obvious answer is to add up all the loads but that will usually produce a specification which is far too expensive. Not everything is likely to be on at the same time!
I found this paper, which could help you answer your query.
www.inspectapedia.com/electric/ElecAmps.htm
 
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