A. Lightning arresters
B. Relays
C. Step-down transformer
D. Switchgear
A. tapg
B. load end
C. sending end
D. sending and other end
E. all of the above
A. lengthening of the gap
B. cooling and blast effect
C. both (A) and (B)
D. deionizing the oil with forced air
E. none of the above
A. motors
B. power outlet circuits
C. fluorescent lamps
D. light circuits
A. slow making and breaking of load circuit contacts
B. foreign matter on the contact surface
C. too low contact pressure
D. all 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. resistance, reactance or impedance
B. voltage and current
C. light intensity
D. temperature
E. all above