What is the main purpose of using fuses in a solar PV system?

The primary purpose of using fuses in a solar PV system is to protect against short circuits. Fuses serve as a safety device that interrupts the electrical circuit in the event of excessive current flow, which can occur during a fault condition, such as a short circuit. When a short circuit happens, it can lead to overheating and potentially cause damage to components within the system or result in fire hazards. By using fuses, the circuit is automatically disconnected when the current exceeds safe levels, thus preventing damage to the solar panels, inverters, and the overall electrical system.

While other options mention performance and efficiency, the role of a fuse is specifically centered on ensuring safety and protection from electrical faults. Converting voltages, while a function of other components in the system such as inverters, is not a function of fuses. Hence, the correct answer reflects the essential protective feature of fuses in safeguarding the solar PV system.