POWER SYSTEMS QUIZ

 0.4 pu

 0.25 pu

 0.2 pu

 0.1 pu

 Impedance relays

 Mho relays

 Admittance relays

 any of the above

  transformer.

  none of these.

  bus bar.

  alternator.

 R/L = C/G.

 R = O, G = O.

 R/L = G/C.

 None of above.

All of these

 To keep the air heaters clean

 To remove dust particles setting on the bus bar conductors in the station switch yard

 To collect the dust particles from the flue gases

 can't say

 high

 low

 very high

  Current transformer.

  Potential transformer.

  Power transformer.

  Instrument transformer.

 2.63 msec

 9.68

 1.47 msec

 4.68 msec

  100 : 5 / √3.

 120 : 6 / √3.

 150 : 4 / √3.

  200 : 5 / √3.

 6 MW

 10 MW

 5 MW

 12 MW