Power Systems
Two generating stations delivering a powers of P1 = 150 MW, P2 =100 MW and the B coefficients are B11 = 0.005, B22 = 0.002, B12=B21= -0.001. Find the transmission line losses?

 85.5
 105.2
 95.5
 102.5

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Power Systems
Gross head of an hydroelectric power station is

 all of above.
 the height of water level in the river where the storage is provided.
  the difference of water level between the level in storage and tail race.
 the height of water level in the river where the tail race is provided.

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