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Achiever Study Plan ESE-2018: Power System Quiz 10
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Question 1
The loss formula coefficient matrix for a two-plant system is given by
The economic schedule for a certain load is given as
P1 = 150 MW and P2 = 275 MW
What is the penalty factor for plant 1 for this condition?
The economic schedule for a certain load is given as
P1 = 150 MW and P2 = 275 MW
What is the penalty factor for plant 1 for this condition?
Question 2
A large ac generator supplying power to an infinite bus is suddenly short-circuited at its terminals. Assuming the prime-mover input and the voltage behind the transient reactance to remain constant immediately after the fault, the acceleration of the generator rotor is
Question 3
Which of the following conductors below are homogenous conductors?
Question 4
The insulation resistance of a single core cable is 495 MΩ per km. If the core diameter is 2.5 cm and resistivity of insulation is 4.5 x 1014 Ohm-cm, the insulation thickness is _________ cm.
Question 5
For a 400 km long transmission line, the series impedance is (0.0+j0.5)Ω/kM and the shunt admittance is
(0.0+j5.0)μ℧/kM. The magnitude of the series impedance (in Ω) of the equivalent p circuit of the transmission line is ________.
(0.0+j5.0)μ℧/kM. The magnitude of the series impedance (in Ω) of the equivalent p circuit of the transmission line is ________.
Question 6
The magnitude of three-phase fault current at buses A and B of a power system are 10 pu and 8 pu, respectively. Neglect all resistance in the system and consider the pre-fault system to be unloaded. The pre-fault voltage at all buses in the system is 1.0 pu. The voltage magnitude at bus B during a three-phase fault as but A is 0.8pu. The voltage magnitude at bus A during a three-phase fault at bus B, in pu, is
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Aug 29ESE & GATE EE
