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10000EE405122001

b) Explain the requirements to be satisfied while selecting and installing a standby
generator for medium voltage applications?
A residential building has the following electrical loads (i) Three CFL (18 W
each) used for 4 hours/day (ii) Two Ceiling fans (60 W each) used for 8
hours/day (iii) One refrigerator (125 W) used for 24 hours with 50% duty cycle
(iv) One washing machine (125 W) used for 1 hours/day. Calculate total watt-
hour/day for all appliances taken together. Determine the watt-hour/day to be
generated by the solar panels. Design a suitable solar plant, which is to be
installed at a location having a minimum solar irradiation of 4.83kWh/m’/day.
Assume 30% energy losses/panel and de-rating factor=0.69. Any missing data

may be assumed.

RK

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