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Power Systems

Power Systems
More efficient plants are used as

 both 1 and 2
 peak load plant
None of these
 base load plant

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Power Systems
Which of the following is/are the methods of improving transient stability?

 Fast acting governing system
 Fast acting excitation control
 Dynamic breaking
All of these

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Power Systems
Find the relation between sub transient (X"), transient (X') and synchronous reactance (X) ?

 X" > X' < X
 X" < X' > X
 X" < X' < X
 X" > X' >X

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Power Systems
In triangular configuration, inductance and capacitance values are ------ and ------ respectively

 higher, higher
 less, higher
 higher, less
 less, less

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Power Systems
For head and low discharge the water turbine used

  Pelton wheel.
 propeller turbine.
 Kaplan wheel.
 Francis turbine.

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Power Systems
For complete protection of 3-phase system from the short circuit faults minimum number of relays required are

 three
 six
 two
 one

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