Consider a house that has a 120V mains with mains frequency of 60hz and a service current of 100A, which follows the safety standards of the residential facilities. (a) Calculate the maximum power capacity. (b) Within the safety limit, the following devices can all operate at the same time? If yes, what is the total power consumed? If not, what happens if all devices are turned on at the same time and suggest a solution to the problem? - 4800W clothes dryer. - 400W washing machine. - 1200W dishwasher. - 1000W iron. - 860W air conditioning. - 150W color television. - 110W stereo sound. - 2400W electric stove. - 1200W microwave oven. - 1800W cooler. (c) Assuming that 60% of the maximum power were used daily, what is the total cost per month for a kWh value of 10 cents?
Consider a house that has a 120V mains with mains frequency
of 60hz and a service current of 100A, which follows the safety standards of the
residential facilities.
(a) Calculate the maximum power capacity.
(b) Within the safety limit, the following devices can all operate at the same
time? If yes, what is the total power consumed? If not, what happens if all devices
are turned on at the same time and suggest a solution to the problem?
- 4800W clothes dryer.
- 400W washing machine.
- 1200W dishwasher.
- 1000W iron.
- 860W air conditioning.
- 150W color television.
- 110W stereo sound.
- 2400W electric stove.
- 1200W microwave oven.
- 1800W cooler.
(c) Assuming that 60% of the maximum power were used daily, what is the total cost
per month for a kWh value of 10 cents?
(d) Sketch the waveform, determine the phase difference and calculate the rms values of the
following waveforms: v(t) = 60 sin(wt + 20) and i(t) = 12 sin(wt - 20).
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