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Power factor for Distribution Boards

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Histor

Electrical
Joined
Mar 2, 2022
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70
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SG
Do I need to consider the power factor for Power Distribution Boards and control panels & UPS in the load list?
 
Yes of course.
How do you arrive at the current rating otherwise?
kW rating of the feeder divided by power factor gives kVA. Total current drawn by a feeder can be calculated from kVA.
If the PDB net power factor is lower than that considered in the rating of UPS, you may have to resize the UPS even.
 
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