A reactor, also known as an inductor, is a device used in substations to provide inductive reactance. Its primary purpose is to limit or control current flow in specific situations. Different types of reactors serve different functions. Shunt reactors are connected in parallel with transmission lines or busbars to compensate for capacitive charging current, which is especially important in long transmission lines. This helps to prevent voltage rise under light load conditions. Series reactors are connected in series with transmission lines or equipment to limit short-circuit currents, protecting equipment from damage during faults. They can also be used to limit inrush currents when energizing transformers or capacitor banks. Neutral grounding reactors are connected....
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