What is the purpose of a cooling system in a generator?

The purpose of a cooling system in a generator is essential for maintaining optimal operating temperatures and preventing overheating. Generators produce a significant amount of heat during their operation due to electrical and mechanical losses. If the temperature rises too much, it can lead to inefficiency, potential damage to components, and even failure of the generator.

The cooling system works by dissipating this heat, ensuring that all parts of the generator, such as the windings and bearings, remain within safe temperature limits. By keeping the generator cool, it operates efficiently, prolongs its lifespan, and reduces the risk of unplanned outages caused by thermal stress. This effective temperature management is crucial for the reliability and overall performance of the generator, making option B the correct answer.