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Power Systems

Power Systems
Find the propagation constant, if impedance is 10Ω and admittance is 10 â„§?

 10
 1
 5
 100

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Power Systems
Equal area criteria is used for

 absolute stability of the system
 nether 1 nor 2
 either 1 or 2
 relative stability of the system

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Power Systems
In a two plant system, the load is connected to plant number 2. The loss coefficients are

 B11,B12 are non zero ,B22 = 0
 B11 is non zero,B22 = B12 = 0
 B11,B22,B12 are non zeros
 B11,B22 are non zero,B12 = 0

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Power Systems
Advantages of higher transmission voltage is/are

 Area of cross section and volume of the conductor is reduced
 Transmission line losses are reduced
All of these
 Power transfer capability of the transmission line is increased

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Power Systems
On what factors does the selection of a water turbine depend

 Speed.
  All of above.
 Working head.
 Nature of load.

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Power Systems
For accurate load flow calculations on large power systems, the best method is

 G-S method
 N-R method
All of these
 Decoupled method

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