Question

In: Physics

This problem has 3 parts. The power company wants to deliver electrical service of 110 volts...

This problem has 3 parts.

The power company wants to deliver electrical service of 110 volts plus or minus 5 volts (105 to 115 volts), at 60 hertz frequency across a 10 kilometer transmission line to a small town. The transmission line voltage is 4,000 volts. There is a transformer available with a primary coil of 15,000 turns and secondary coils of 82 , 132, 164 and 187 turns.

part a - Which, if any, of the secondary coils can be used to deliver the power within the 105 to 115 volt range, include your calculations

part b - If a transformer is used that delivers an exact 110 volts, and the town requires a peak (maximum) of 800 kilowatts of power, how much current will flow through the 10 kilometer transmission line during the peak.

part c - Is a transformer has a secondary coil of 220 turns, how many turns are needed on the primary coil to get the 110 volts with an error of less than 1 percent?

Solutions

Expert Solution

A problem of power supply using a transformer on the delivery side

genius_generous answered 1 year ago
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