Interruption of large currents by relay requires
A)Arc suppressing blow out coils
B)Wide separation of the open contacts
C)High speed opening of contacts
D)All of the above

Question

Quizplus · Accepted Answer

All of the options are necessary for effectively interrupting large currents by a relay: arc suppressing blow out coils help extinguish the arc, wide separation of contacts prevents re-striking, and high-speed opening minimizes the duration of the arc.

Interruption of Large Currents by Relay Requires