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Jul 29,2024
The preventive measures for the capacity attenuation of power capacitors are crucial in the application of power capacitor banks. Here are some of the main preventive measures: Control operating conditions: Temperature control: Ensure that the capacitor operates within the temperature range recommended by the manufacturer. Excessive temperature will accelerate the aging of the internal materials o...
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Jul 23,2024
UPS and Energy Storage Technology are two different power systems. Their main differences lie in their working principles, application scenarios, and energy storage methods. The main working principle of UPS is to convert the input AC power into DC power through power conversion circuits and batteries and other devices, and then convert it back to AC output through inverters. When the input power ...
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Jul 22,2024
Statcom, Current sampling and voltage sampling Current and Voltage Sampling in STATCOM Static Synchronous Compensator (STATCOM) is a device used for dynamic reactive power compensation and voltage stabilization in power systems. Accurate current and voltage sampling are crucial for the proper functioning of STATCOM, ensuring it provides the necessary reactive power compensation and voltage regulat...
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Jul 16,2024
STATCOM and Voltage Flicker Mitigation What is votlage flicker? Voltage flicker refers to the rapid and repeated fluctuations in the voltage level of a power supply, which can cause noticeable changes in the intensity of lighting and can affect the performance of other electrical equipment. These fluctuations can be annoying and may lead to operational issues in sensitive equipment Causes of Volta...
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Jul 09,2024
In the power system, the on-site compensation of high-voltage motors should be invested when the voltage drops by more than 10%. 1. The role of on-site compensation of high-voltage motors The on-site compensation of high-voltage motors can effectively improve the power factor of the power system, reduce line losses, ensure the stable operation of the system voltage, and reduce energy consumption a...
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Jul 01,2024
First of all, the operation of inductive equipment must establish a magnetic field (such as a motor). Since the instantaneous start-up of large equipment requires the power grid to provide a large amount of Reactive Current to establish a magnetic field, the voltage of the system will be greatly reduced at the moment of equipment startup, causing other equipment to be protected or unable to operat...
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Jul 01,2024
STATCOM (Static Synchronous Compensator) is a power electronic device used power systems for voltage control and power factor correction. While Statcom are not directly related to coal mining operations, they can play a role in providing stable and reliable electrical power for mining operations, including coal mines. Coal mines typically require a significant amount of electrical power for variou...
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Jun 13,2024
When an oscillating system is subjected to periodic external force, the amplitude of the oscillation increases sharply when the frequency of the external force is the same as or very close to the natural oscillation frequency of the system. The frequency at which resonance occurs is called "resonance frequency". In electrical engineering, the resonance phenomenon of an oscillating circuit. The res...
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Jun 03,2024
33kV Capacitor Banks Static Reactive Power Compensation: Capacitor banks provide fixed reactive power compensation. Simple Technology: Consists of capacitors connected in series or parallel to provide reactive power. Advantages: Cost-Effective: Typically less expensive than STATCOM, making them a cost-effective solution for reactive power compensation. Simplicity: Easier to install and maintain du...
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May 30,2024
1. What are the 3rd, 5th, and 7th harmonics? In a normal power system, electrical equipment with linear impedance change characteristics will not affect the power supply with a frequency of 50Hz and a standard sinusoidal waveform when it is working. However, with the development of power electronics technology, there are more and more electrical equipment with nonlinear impedance characteristics (...
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