Hi,
I've used this forum often, but always someone else had asked my question. I signed up as I've got one that I haven't been able to find an answer for yet.
I have a project with a MV transformer feeding 5 multifamily buildings, each with 4 units. Following 220.84, for one building I get a connected load of 156kVA and a demand load of 70.2kVA.
When sizing the transformer for all 5 dwellings how do I determine the demand load? Is it 156kVA * 5 * 0.38 (demand factor for 20 units from Table 220.84) or is it 70.2kVA * 5?
In my mind the first option makes more sense because I am essentially looking at 20 units from the transformer perspective. It doesn't matter whether they are in different buildings or not.
Thanks for any and all advice.
I've used this forum often, but always someone else had asked my question. I signed up as I've got one that I haven't been able to find an answer for yet.
I have a project with a MV transformer feeding 5 multifamily buildings, each with 4 units. Following 220.84, for one building I get a connected load of 156kVA and a demand load of 70.2kVA.
When sizing the transformer for all 5 dwellings how do I determine the demand load? Is it 156kVA * 5 * 0.38 (demand factor for 20 units from Table 220.84) or is it 70.2kVA * 5?
In my mind the first option makes more sense because I am essentially looking at 20 units from the transformer perspective. It doesn't matter whether they are in different buildings or not.
Thanks for any and all advice.