Question 502Electricity & Electronics - QMED

The correct answer is D) trip out the generator when there is insufficient voltage being delivered to distribution circuits. Undervoltage trips are installed on switchboard circuit breakers to protect the distribution system and connected equipment from damage due to low voltage. If the voltage drops below a set threshold, the undervoltage trip will automatically open the circuit breaker to disconnect the generator from the distribution system. This prevents equipment from being damaged by running on insufficient voltage, which can occur due to generator issues, overloading, or other faults in the electrical system. The other options are incorrect because they do not accurately describe the primary purpose of undervoltage trips on switchboard breakers, which is to maintain proper voltage levels in the distribution system.