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example 4 7
first transformer
total full load losses 300kW
full load copper losses 180kW
energy loss due to copper losses 405900kWh/year
energy loss due to iron losses 420000kWh/year
cost of energy losses Rs660720per year
second transformer
total full load losses 200kW
full load copper losses 110kW
energy loss due to copper losses 248050kWh/year
energy loss due to iron losses 315000kWh/year
cost of energy losses Rs450440per yearadditional interest and depreciation due to higher cost of second transformer Rs30000
total yearly charges for second transformer Rs480440 per year
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