Now, suppose we were to use a pair of perfectly efficient 10:1 transformers to s

Question

Now, suppose we were to use a pair of perfectly efficient 10:1 transformers to step the voltage up for transmission, and back down again for use at the load. Re-calculate the load voltage, load power, wasted power, and overall efficiency of this system:................................................................................................... Eload =...................................... Pload = .................................. Plines =........................................ ? = .................................................. image can be found on......................http://i.imgur.com/ybFWu.png

Explanation / Answer

simple system (no transformer )

Eload = 210 volts
Pload = 31.5 kw
Plines = 4.5 kW
= 87.5 %

complex system (with transformer)

Eload = 239.7 volts

Pload = 35.96 kW

Plines = 45 W

= 99.88%

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