Power Systems
Four identical alternators each are rated for 20 MVA, 11 KV having a subtransient reactance of 16% are working in parallel. The short circuit level at the busbar is

 125 MVA
 400 MVA
 100 MVA
 500 MVA

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Power Systems
Gas coolled reactor

  both B and C.
 use CO2. or helium as coolant and graphite the moderator.
 use heavy water as coolant as well as moderator.
 use coolant at pressure of 14-28 Kg/cm2 and at temperature of 700°-800° c.

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