A. Lightning arresters
B. Relays
C. Step-down transformer
D. Switchgear
A. thermocouple
B. pyrometer
C. resistance thermometer
D. thermometer
A. split-phase relays
B. reactance relays
C. impedance relays
D. none of the above
A. Impedance
B. Reactance
C. Either of the above
D. None of the above
A. Induction type
B. Reactance
C. Impedance
D. None of the above
A. above 30 kVA.
B. equal to and above 5 MVA
C. equal to and above 25 MVA
D. none of the above
A. mechanical vibration
B. insulation failure
C. loose connection
D. impulse voltage
A. mechanical vibration
B. insulation failure
C. loose connection
D. impulse voltage
A. Air blast circuit breakers
B. Circuit breaker with SF6 gas
C. Vacuum circuit breakers
D. Oil circuit breakers
A. hydro-electric generators
B. steam turbine generators
C. gas turbine generators
D. all of the above
E. none of the above