A. Inverse time trip
B. Time-delay trip
C. Shunt trip
D. None of the above
E. All of the above
A. interception
B. interception and conduction
C. interception, conduction and dissipation
D. interception, conduction, dissipation and reflection
E. none of the above
A. transient state of short-circuit current
B. sub-transient state of short-circuit current
C. steady state of short-circuit current
D. after D.C. component has ceased
A. two currents
B. two voltages
C. two or more similar electrical quantities
D. none of the above
A. Induction type
B. Reactance
C. Impedance
D. None of the above
A. Lightning arrestors are used before the switchgear
B. Shunt reactors are used as compensation reactors
C. The peak short current is (1.8 xV2) times the A.C. component
D. The MVA at fault is equal to base MVA divided by per unit equivalent fault reactance
A. single phase to ground faults
B. phase to phase faults
C. two phase to ground faults
D. three phase faults
E. any of these