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GATE 2019: Power System Test 8
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Question 1
Find the natural frequency if a 50 Hz, 3-phase synchronous generator has inductance per phase of 15 mH. The capacitance of the generator and circuit breaker is 0.002 µF?
Question 2
Which of the following statements is incorrect?
Question 3
If the load of 50 MW is suddenly applied then find the frequency deviation during this time when A 200 MVA alternator operated at no load at frequency of 50 Hz, it has inertia constant of 5 MWsec/MVA and governing system has a time delay of 0.6 sec.?
Question 4
A generator has speed regulation as 0.125 Hz/MW and load frequency constant β as 2 MW/Hz. If the change in frequency is 0.2 Hz, then change in load is _______ MW.
Question 5
For a two machine system with losses, with the transfer impedance being resistive, the maximum value of the sending end power P1 max and the maximum receiving end power P2 max will occur at power angles (δ) in such a manner that
Question 6
A 1200 kV transmission line has a maximum power transfer capacity of P watts. If it is now operated at 400 kV with the series reactance unchanged, the new maximum power transfer capacity is approximately
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Jun 13ESE & GATE EE
