Maximum Load Factors

[camfink]

Hey guys, I was just wondering if anyone had on hand the Maximum Load Factors for various transformers? any help would be appreaciated, Thanks.

 

[magoo2]

Load factor is the ratio of the average to peak load. This is very much dependent on the loads served by the transformer. It is not a number that relates to a particular transformer.

If this is your question, where are you located and what type of loads are being served? Also what transformer sizes are you talking about?

 

[camfink]

Well I was basically wondering if for instance a Low Voltage Dry transformer had a lower/higher load factor than any other types mainly used. I am not that experienced with the use of transformers yet so its hard for me to explain any more. Thanks for the help though...

 

[dpc]

If you are asking if you can load up a dry-type transformer the same as an oil-filled, the answer is basically yes, subject to ambient temperature limitations, etc. Short-term overloading might be another matter.

But load factor is a function of the load, not the transformer.

 

[nicusorcris]

Usually , but not like a rule , you can take a factor of 0.8 for oil transformer , and 0.9 - 0.95 , for dry transformer.
Everything depends on manufacturer.
Example , if you have S=630kVA, you can "count" on 630*0.8=504kW , oil transformer , and 630*0.92=580kW , dry transformer.