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#216141 - 10/16/15 12:50 AM D.F load of Equipments
JUJU Offline
New Member

Registered: 10/16/15
Posts: 1
Loc: India
I have seen an excel sheet in calculator to calculate the size of transformer.
There are option to put the vales of Kw,PF,Qty and Equipment D.F.
I could not understand what is D.F.
What is the equation to calculate the D.F and equation to calculate the total load D.F?

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#216142 - 10/16/15 10:22 AM Re: D.F load of Equipments [Re: JUJU]
ghost307 Offline
Member

Registered: 05/09/05
Posts: 876
Loc: Chicago Illinois USA
D.F. is probably the Demand Factor.
What percentage of the transformer rating is being used.
_________________________
Ghost307

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#216658 - 01/15/16 03:44 PM Re: D.F load of Equipments [Re: JUJU]
Highrise Offline
New Member

Registered: 01/15/16
Posts: 2
Loc: WA-CA, USA
DF= Demand Factor...a ratio portion of the total demand load of a system (or system part) expressed as a percentage calculated for usage allowed. [Art.220]

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#216660 - 01/15/16 06:25 PM Re: D.F load of Equipments [Re: Highrise]
Highrise Offline
New Member

Registered: 01/15/16
Posts: 2
Loc: WA-CA, USA
Note that including the overall Demand Load depends on using a standard or optional method load calculation as permitted in Art.220 for determining the transformer rated capacity size needed.

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