When a capacitor is installed in an electrical system, in which direction does the voltage boost occur?

When a capacitor is installed in an electrical system, the voltage boost primarily occurs upstream. This happens because capacitors store electrical energy and can release it quickly to help maintain voltage levels when demand spikes. In an electrical circuit, when a load demands more current than what is being supplied, the capacitor discharges its stored energy, effectively raising the voltage closer to the source, which is typically upstream in the circuit.

This behavior is particularly beneficial in systems where voltage drops are common due to the distance from the power supply or because of high current loads. By boosting the voltage upstream, capacitors help stabilize and improve the overall performance of the electrical system, reducing the risk of outages or malfunctioning equipment due to inadequate voltage levels.