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example 4 22
total energy requirement 1.20e+006kWH
maximum demand 375KVA
(a)HV supply
cost of HV equipment Rs1.875000e+005
interest and depreciation charges Rs22500
energy received 1.263158e+006kWh
demand charges Rs18750
energy charges Rs1.263000e+006
total annual cost Rs1304250
(b) LV supply
demand charges Rs22500
energy charges Rs1e+006
total annual cost Rs1342500
difference in annual cost Rs38250
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