What is the primary function of switchboards in electrical systems?

The primary function of switchboards in electrical systems is to distribute and manage electrical power. A switchboard serves as a centralized location where electrical power is received, distributed, and monitored for various circuits or devices. They facilitate the control of electrical power flow through different circuits, allowing for the safe operation and management of electrical distribution within residential, commercial, or industrial settings.

By effectively managing the distribution of power, switchboards help ensure that electrical loads are balanced and that the system operates efficiently and safely. They often house circuit breakers, switches, and fuses to protect against overloads and short circuits, further emphasizing their role in the overall power management of an electrical system.

In contrast, the other options pertain to different functions that are not the primary role of switchboards. For instance, providing direct electrical connections between appliances is typically handled by outlets and receptacles, while increasing voltage levels for long-distance transmission is accomplished by transformers. Converting AC to DC power involves rectifiers or converters, which is also outside the scope of a switchboard's primary function.