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GATE Electrical Engineering (EE) 2015 Shift 2 Solved Paper

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Question : 50

Total: 65

The incremental costs (in rupees/MWh) of operating two generating units are functions of their respective powers P1 and P2 in MW, and are given by
‌

=0.24P2+40
Where,
20‌MW≤P1≤150‌MW
20‌MW≤P2≤150‌MW
For a certain load demand, P1 and P2 have been chosen such that dC‌1∕dP‌1=76‌Rs∕MWh and dC‌2∕dP‌2=68.8‌Rs∕MWh. If the generations are rescheduled to minimize the total cost, then P2 is___

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