Power quality management is the process of ensuring that electrical power supplies meet the quality requirements necessary for the proper operation of electrical equipment and systems. The quality of power can be impacted by various factors, such as voltage sags, surges, harmonics, flicker, and unbalance, and it is important to maintain a high level of power quality to prevent problems such as equipment damage, data loss, and reduced efficiency.
Power Quality
Detuned Harmonic Filtration System
A detuned power factor compensator is a type of passive power factor correction device that is used to improve the power factor of an electrical system. Unlike traditional power factor correction methods that use capacitors, a detuned power factor compensator uses a combination of capacitors and inductors to provide a more effective and stable solution for power factor correction.
Active Harmonic Filters
Active harmonic filters (AHFs) are electrical devices that are used to improve the quality of the power supply by reducing the levels of harmonic distortion in an electrical system. Harmonic distortion refers to the presence of harmonic frequencies in an electrical waveform that are not present in the original waveform. Harmonic distortion can cause a variety of problems, including increased power losses, decreased power factor, increased heating in electrical equipment, and reduced reliability and lifespan of electrical equipment.
Passive Harmonic Filters
Passive harmonic filters (PHFs) are solution that are used to suppress the levels of harmonic distortion in an electrical system. Harmonic distortion refers to the presence of harmonic frequencies in an electrical waveform that are not present in the original waveform, and it can cause a variety of problems, including increased power losses, decreased power factor, increased heating in electrical equipment, and reduced reliability and lifespan of electrical equipment.
Harmonic Block Reactors
Harmonic Block Reactors are electrical components used to avoid the resonance conditions in an electrical network systems produced by the dominant harmonic frequencies. Harmonics are the higher frequency waveform distortions in the voltage and current waveform of an electrical network that can cause a variety of problems, including reduced power system efficiency, increased heating of equipment, and increased power losses.
Hybrid Filters
Hybrid filters are a type of electrical filter that combine the features of active filters and passive filters. Active filters are electronic devices that use power electronics to control and shape the electrical power waveform, whereas passive filters use only passive components like inductors and capacitors to filter the electrical power waveform.
Power Factor Correction
Capacitors
Capacitors are passive electrical components used in a variety of applications to store electrical energy and release it when needed. They are widely used in electrical power systems to improve power factor and apparent power thus avoid the penalty from utilities and reduce the electricity bill. Capacitors consist of two conductive plates separated by a dielectric material, and they work by accumulating electrical charge on the conductive plates.
Power Factor Controller
Power Factor Controller (PFC) is an electronic device which can be programmed to control the switching of the capacitor bank as per the requirement of reactive power in the network. The power factor is a measure of the efficiency of an electrical system and represents the ratio of the real power used by the system to the apparent power supplied to the system. When the power factor is low, a larger amount of apparent power is required to deliver a given amount of real power, resulting in increased energy losses and higher demand charges from the utility.
Thyristor
A Thyristor Switching Module (TSM) is an electronic component for fast switching of capacitors for dynamic reactive power compensation and meet the preset required power factor of the network . It consists of the SCRs having high PIV value and suitable snubber circuit. It is a type of solid-state switch, and associated gate driver electronics. Thyristors are widely used in power electronics applications because they can handle high voltages and currents, and switch the current on and off very quickly. The TSM provides the necessary gate drive signals to the thyristor to control its switching behavior.
Power Factor Improvements
Power factor improvement is the process of increasing the efficiency of an electrical power system by reducing the amount of reactive power consumed and increasing the amount of real power used by the system. The power factor is a measure of the efficiency of an electrical system and represents the ratio of the real power used by the system to the apparent power supplied to the system.
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