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Power Systems

Power Systems
A 20 MVA generator has inertia constant of 0.5 pu. Find new value for 50 MVA base?

 0.4 pu
 0.5 pu
 0.1 pu
 0.2 pu

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Power Systems
If in a line, resistance and reactance are found to be equal and regulation is zero, then load will have

 zero power factor
 unity power factor
 0.707 leading power factor
 0.707 lagging power factor

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Power Systems
For n bus power system size of Y bus matrix is

 n×n
 (n-2)×(n-2)
 (n-1)×(n-1)
 (n-1)×(n-2)

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Power Systems
A power station supplies the peak load of 50 MW, 40 MW and 70 MW to three localities. The annual load factor is 0.50 p.u. and the diversity factor of the load at the station is 1.55 the maximum demand on the station and average load respectively will be

 53 MW.
  51.61 MW.
 52 MW.
 57.5 MW.

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Power Systems
Plant capacity factor value is

 less than 1
 0
 greater than 1
 1

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Power Systems
The conversion ratio of a breeder reactor is

 none of above.
 less than unity.
  more than unity.
  equal to unity.

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