Q1.A nuclear power station of 500 MW capacity is located at 300 km away from a load center. Select the most suitable power evacuation transmission configuration among the following options
Answer : Option AExplaination / Solution: No Explaination.
A load center of 120MW derives power from two power stations connected by 220kV transmission lines of 25km and 75km as shown in the figure below. The three generators G1,G2 and G3 are of 100MW capacity each and have identical fuel cost characteristics. The minimum loss generation schedule for supplying the 120 MW load is
Answer : Option AExplaination / Solution:
Loss α p2 ; Loss α length
For checking all options only option A gives less losses.
A solar energy installation utilize a three – phase bridge converter to feed energy into power system through a transformer of 400V/400 V, as shown below.
The energy is collected in a bank of 400 V battery and is connected to converter
through a large filter choke of resistance 10Ω.
A solar energy installation utilize a three – phase bridge converter to feed energy into power system through a transformer of 400V/400 V, as shown below.
The energy is collected in a bank of 400 V battery and is connected to converter through a large filter choke of resistance 10Ω.
Q9.The bus admittance matrix of a three-bus three-line system is
If each transmission line between the two buses is represented by an equivalent π-network, the
magnitude of the shunt susceptance of the line connecting bus 1 and 2 is
Q10.The figure shows a two-generator system supplying a load of PD = 40 MW, connected at bus 2.
The fuel cost of generators G1 and G2 are : and the loss in the line is where the loss coefficient is specified in pu on a
100 MVA base. The most economic power generation schedule in MW is
Answer : Option AExplaination / Solution:
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0