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Aug 27,2024
Harmonic voltage and harmonic current are common phenomena in power systems, and they have a great impact on power equipment and power grid operation. Harmonics refer to voltage or current components whose frequencies are integer multiples of the fundamental frequency. In power systems, the fundamental frequency is generally 50Hz or 60Hz, so the harmonic frequency is an integer multiple of 50Hz or...
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Sep 05,2024
Application of reactive power compensation device SVG: Power system: SVG can be used for reactive power compensation and voltage regulation of power system to improve the stability and reliability of power grid. It can help power system reduce power loss, improve voltage quality, and improve power factor and efficiency of power grid. Industrial field: SVG can be used for reactive power compensatio...
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Sep 11,2024
Selecting the capacity of the transformer is crucial, as it directly affects the stability, efficiency and safety of the power system. The appropriate transformer capacity can ensure that current and future load requirements are met, avoiding equipment damage and energy waste caused by overload or underload. The correct capacity selection helps optimize operating costs, extend equipment life, and ...
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Sep 28,2024
The low-voltage power distribution system consists of a distribution substation (usually reducing the transmission voltage of the power grid to the distribution voltage), a high-voltage distribution line (i.e., a voltage above 1 kV), a distribution transformer, a low-voltage distribution line (a voltage below 1 kV), and corresponding control and protection equipment. Generally includes: Main equip...
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Oct 08,2024
Static Var Generator (SVG) modules and panels are essential components in reactive power compensation systems, designed to improve power quality and stabilize voltage in electrical networks. Here's an overview of both: 1. SVG Modules Function: These are the core components responsible for providing dynamic reactive power compensation by injecting or absorbing reactive power in response to varying ...
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Oct 14,2024
Low-voltage capacitor cabinets are electrical equipment used in power systems. Their main function is to compensate the power factor of the power system and improve the power supply quality of the system. When installing low-voltage capacitor cabinets, the following aspects need to be noted: Installation location selection: Low-voltage capacitor cabinets should be installed in ventilated, dry, non...
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Nov 04,2024
Inverters are a type of power electronic device widely used in industrial automation. They adjust the speed of motors by changing the frequency and amplitude of the motor input voltage. Although inverters improve energy efficiency and control performance, they generate harmonics during operation, which have an adverse effect on power grids and equipment. Understanding the causes and principles of ...
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Nov 13,2024
In the power supply system, reactive power compensation can improve the power factor of the power grid, reduce the loss of power transformers and transmission lines, and improve the power supply environment. Reasonable selection of compensation devices can minimize the loss of the power grid and improve the quality of the power grid. If the selection or use is improper, it may cause many problems ...
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