A. split-phase relays
B. reactance relays
C. impedance relays
D. none of the above
A. reactors
B. resistors
C. capacitors
D. none of the above
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. heavy loads
B. internal short-circuits
C. external short-circuits
D. all of the above
A. neutral wire
B. negative of D.C. circuit
C. positive of D.C. circuit
D. phase dine
A. 100 microsecond
B. 50 millisecond
C. 0.5 sec
D. 0.1 sec
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