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Power Systems

Power Systems
If the inertia constant H = 10 MJ/MVA for a 50 MVA generator, the stored energy is

 5 MJ
 50 MJ
 500 MJ
 10 MJ

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Power Systems
In transmission lines distribution constants are

 resistance
 both 1 and 2
 inductance and resistance
 inductance and capacitance

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Power Systems
Find the surge impedance of a line when inductance is 160 mH and capacitance is 1µF?

 800 Ω
 400 Ω
 160 Ω
 200 Ω

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Power Systems
Mechanical energy is supplied to a DC generator at the rate of 4200 J / S. The generator delivers 32.2 Amp at 120 V. How much energy is cost per minute of operation

  20060 J.
 23060 J.
 25060 J.
  20160 J.

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Power Systems
For symmetrical network, the neutral current is

 maximum
 zero
 infinity
 any of the above

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Power Systems
The sequence components of the fault current are as follows: IR1 = j1.5 pu, IR2 = -j0.5 pu, IR0 = -j1. The type of fault is

 LL
 LLL
 LG
 LLG

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