Since the inductive load of the motor accounts for almost 70% of the total load, the system power factor decreases and reactive power increases. OKE frequency converters utilize mature and stable high-quality imported components such as the American TEXAS INSTRUMENTS DSP high-speed control chip, German Infineon IGBTs, Japanese MITSUBISHI ELECTRIC IPM automatic control modules, EPCOS absorption capacitors, Japanese Rubycon high-quality electrolytic capacitors, and Italian Ductati Energia absorption capacitors. This ensures the high stability and reliability of the frequency converter, reduces motor load losses and power supply capacity limitations, effectively compensates capacitors locally, reduces reactive power losses in the lines, and ensures the stable operation of the power system.
Appropriately improving a user's power factor can not only fully utilize the production capacity of power generation and supply equipment, reduce line losses, and improve voltage quality, but also increase the operating efficiency of the user's electrical equipment and save energy for the user. When the active power is constant, reducing reactive power will improve the power factor; therefore, improving the power factor essentially means reducing the reactive power of electrical equipment.
The electrical power required to establish an alternating magnetic field and induced magnetic flux is called reactive power. Therefore, the so-called "reactive" is not "useless" electrical power; it simply means that its power is not converted into mechanical energy or heat energy. Thus, in addition to active power sources, reactive power sources are also needed in power supply systems, and neither can be dispensed with. The unit of reactive power is var.
The adverse effects of reactive power generation are mainly manifested in the following ways:
(1) Reduce the output of the generator's active power.
(2) When the apparent power is constant, increasing the reactive power will reduce the power supply capacity of the transmission and transformation equipment.
(3) The flow of reactive power in the power grid will cause an increase in line voltage loss and power loss.
(4) When the system lacks reactive power, it will cause low power factor operation and voltage drop, which will prevent the electrical equipment capacity from being fully utilized.
