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

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

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Power Systems
An impulse turbine

  operates by initial complete conversion to kinetic energy.
 always operates submerged.
 makes use of a draft tube.
 is most suited for low head and high discharge power plants.

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