A. merz price percentage differential protection
B. mho and ohm relays
C. horn gaps and temperature relays
D. earth fault and positive sequence relays
A. a capackive reactance
B. an inductive reactance
C. a resistance increasing with voltage rise across the arc
D. a resistance decreasing with voltage rise across the arc
A. to operate the relay of circuit breaker
B. as a substitute for circuit breaker
C. always independent of the position of circuit breaker
D. generally on both sides of a circuit breaker
A. overload
B. reverse current
C. open-circuits
D. short-circuits
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
A. zero
B. infinity
C. unity
D. none of the above
A. Rewireable fuse
B. Isolator
C. Oil circuit breaker
D. Air break circuit breaker
E. None of the above