What is Capacitance?
Capacitance refers to the measure of a system’s ability to store an electrical charge. In electrical systems, this is typically associated with capacitors—components used to temporarily hold energy and release it when needed. Capacitance is measured in farads (F), and even small capacitors found in homes or commercial buildings typically operate in microfarads (μF).
In both residential and commercial electrical systems, capacitance plays a crucial role in power supply stabilization, motor start-up circuits, and signal filtering. For example, in HVAC systems, start capacitors help kickstart motors, while run capacitors help them maintain a steady speed. Understanding and measuring capacitance allows electricians to troubleshoot circuits effectively, ensuring optimal performance and longevity of electrical equipment.