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Power Systems

Power Systems
Normally Z bus matrix is a

 sparse matrix
 unit matrix
 full matrix
 null matrix

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Power Systems
A transmission line is operating under no load has ABCD parameters B = 100∠90° has a phase shift of 0.2 rad, how much shunt reactor is required for compensation of ferranti effect?

 2 mH
 15.9 H
 15.9 mH
 2 H

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Power Systems
The per unit impedance Z(pu) is given by

 ZΩ* (kVA)b/(KV)²b
 ZΩ* (MVA)b/((KV)²b *100)
 ZΩ* (MVA)b/(KV)²b
 ZΩ* (MVA)b*100/(KV)²b

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Power Systems
In a steam power plant, the feed water coming to the economizer is heated plant the feed water coming to the economizer is heated using

 LP steam.
 direct heat in the furnace.
 HP steam.
  flue gas.

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Power Systems
Find the value of a729, where "a" is the operator

 0
 α
 α²
 1

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Power Systems
If sparsity of a 5 bus transmission line is 0.4. Find the number of transmission lines?

 3
 6
 5
 4

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