A. over currents
B. short duty
C. intermittant duty
D. repeated duty
A. Inductance
B. Capacitance
C. Resistance
D. Reactance
A. high temperature
B. increase of mean free path
C. increasing field strength
D. all of the above
A. two currents
B. two voltages
C. two or more similar electrical quantities
D. none of the above
A. heavy loads
B. internal short-circuits
C. external short-circuits
D. all of the above
A. delayed trip action
B. instantaneous trip action
C. both of the above
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