What role do capacitors play in electrical systems?

Capacitors play a vital role in electrical systems primarily by assisting in controlling the flow of power. They store electrical energy and release it when needed, which can help manage the voltage levels within a circuit. This ability to store and release energy allows capacitors to smooth out fluctuations in voltage and improve overall system stability.

In terms of power factor correction, capacitors can also help reduce reactive power demand, allowing electrical systems to use power more efficiently. This proactive management of electrical flow contributes significantly to optimizing the operation of motors, generators, and other devices within an electrical network, ultimately ensuring that the power delivered is effective and reliable.

Capacitors do not enhance insulation resistance, serve as grounding devices, or improve mechanical efficiency; rather, their primary purpose revolves around energy storage and management, making them essential components in a variety of applications within electrical systems.