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Power Systems

Power Systems
Proximity effect is more in case of

 same in both cases
 over head lines
 power cables
None of these

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Power Systems
The rate of rise of re-striking voltage is dependent upon

 resistance of the system only
 both 1 and 2
 inductance of the system only
 capacitance of the system only

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Power Systems
A cable has inductance of 0.22 mH per km and capacitance of 0.202 µF per km. The surge impedance of the cable is

 40 Ω
 33 Ω
 28 Ω
 52 Ω

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Power Systems
The main advantage of the Decoupled Load Flow (DLF) as compared to the NR method is

All of these
 accuracy is more
 number of iterations are less
 reduced memory requirements in storing the Jacobian elements

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Power Systems
Counter poise is used for

 less surge impedance
 proper discharging of lighting surges
 more surge impedance
 reduce losses

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

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

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