Why Is Series Reactor Called A Key Role In The Power System?

In modern power systems, Series Reactor plays an increasingly important role. With the rapid development of renewable energy and the continuous increase in electricity demand, low-voltage series reactors not only improve the stability of the system, but also ensure the reliability of power quality.

Series Reactor is an electrical device, mainly composed of an inductor coil, which is usually connected in series in the power system. Its main function is to provide inductive reactance, limit short-circuit current, and adjust power factor, thereby improving the overall performance of the power system. Compared with ordinary reactors, Series Reactor is more sophisticated in design to meet the use requirements of low-voltage electrical equipment.

The working principle of Series Reactor is based on the characteristics of inductance. Inductors can generate induced electromotive force when the current changes, thereby reacting to the change of current. When the current passes through the inductor coil, the coil generates a magnetic field, stores energy, and releases this energy when the current changes. By controlling the inductive reactance of the series reactor, the current peak can be effectively limited to prevent overload from causing damage to the equipment.

When the current flows through the Series Reactor, the magnetic field generated will hinder the current flowing through. According to Faraday's law of electromagnetic induction, the change in magnetic field caused by the change in current will generate an induced electromotive force in the inductor. When a short circuit occurs, the Series Reactor can effectively limit the amplitude of the short-circuit current and protect downstream equipment.

The structure of the Series Reactor consists of several key parts: Inductor coil: This is the core part of the series reactor, usually wound by insulated wire, with high conductivity and good insulation performance. Iron core: The main function of the iron core is to enhance the magnetic field and improve the inductance performance. The material and shape of the iron core directly affect the working efficiency of the reactor. Shell: In order to protect the internal components and avoid the influence of the external environment, low-voltage series reactors usually have a sturdy shell with good heat dissipation performance.

The application of Series Reactor is very wide, involving multiple industries and fields: In the power distribution network of the city, the series reactor can balance the load, voltage, and improve the overall power quality. In large industrial equipment, in order to prevent equipment failure caused by current fluctuations, series reactors are often used to protect and stabilize equipment operation. In wind and solar power generation systems, due to the unstable current output, series reactors can effectively regulate the current and improve the acceptance capacity of the power grid. With the high requirements of data centers on power quality, series reactors are widely used to provide stable power support.