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Mcc Load Analysis
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M. Bravo
post May 25 2007, 05:27 PM
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laugh.gif How can I manage the demand factor, diversity factor and load factor when it is calculating a load study for a MCC bus bar?

EG.

It have a bus bar with the following connected load: (only in this bar)
Continuos Intermitent spare loads
Motor1: 50HP x
Motor2: 50HP x
Motor3: 30hp x (30min each 1 hour)that is means=0.5 (of what demand or load factor)
Motor4: 20hp x
Load: transf. 25kVA x

Taking 1hp=1kVA we have:
loads continue: 95kVA
loads intermitent: 30 kVA* 0.5= 15kVA
loas spares: 50kVA*0.1=5kVA
loads cont+ interm= 110kVA it is this load used to dimension the generator?
loads cont + interm+spare= 115kVA is it this load used to dimension the bar rating?

What load I have to used to dimension the CB protection of this bar?

Thanks

M.B.


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