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Power Systems

Power Systems
Which of the following quantities are to be calculated for generator bus?

 Q and δ
 δ and V
 P and V
 P and Q

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Power Systems
Fault calculations using computer are usually done by

 either 1 or 2
 Z bus method
None of these
 Y bus method

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Power Systems
The inductance of single phase two wire line is given by

 4×10-7× ln(d/r') H/m
 0.4×10-7× ln(r'/d) H/m
 0.4×10-7× ln(d/r') H/m
 4×10-7× ln(r'/d) H/m

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Power Systems
The rating of CB is in terms of

  VAR.
  current.
  volt - ampere.
  voltage.

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Power Systems
Positive, negative and zero sequence impedances of line are 2,2 and 5 pu respectively. Find self and mutual impedances respectively?

 1 and 3 pu
 3 and 1 pu
 2 and 2 pu
 2 and 5 pu

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Power Systems
Storage requirement can be determined from

 hydro-graph.
 flow duration curve.
 mass Curve.
  both B and C.

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