A generating station supplies the following loads: 15000 kW, 12000 kW, 8500 kW, 6000 kW and 450 kW. The station has a maximum demand of 22000 kw. The annual load factor of the station is 48%. Calculate (i) the number of units supplied annually (ii) the diversity factor and (ii) the demand factor.
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Answer:
Demand factor = maximum demand / connected load total
= 22000kw/(15000+12000+8500+6000+450)kW
= 0.5244 or 52.44%
diversity factor = sum of individual demands /maximum demand
= (15000+12000+8500+6000+450) / 22000 = 1.907
Annual load factor = 48% given
= Units generated (supplied) a year * 100 /(maximum demand * hours of operation)
So Units supplied in a year
= annual factor /100 * maximum demand * hours of operation
= 48/100 * 22000 * 24* 365
= 92,505,600 kWh or units
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