What is the function of the arc chute that surrounds each set of arc contacts?

The function of the arc chute that surrounds each set of arc contacts is to extinguish any arc that takes place when the circuit breaker opens. When the circuit breaker interrupts the flow of current, an arc can form between the contacts due to the sudden interruption of electrical flow. The arc chute is designed specifically to manage and quench this arc, effectively ensuring that the electrical current is safely interrupted without causing damage to the circuit breaker or the electrical system. The structure of the arc chute helps to elongate the arc path, cooling the arc and allowing it to be extinguished more rapidly and safely. By mitigating the effects of the arc, the arc chute also protects the circuit breaker from wear and failure, which is critical for maintaining reliability in electrical power production systems.

The other options might suggest alternate functions, but they do not accurately describe the primary role of the arc chute in this context.