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Mar 27,2023
In low voltage distribution system, usually two solutions for the power factor correction: capacitor bank and static var generator. Low Voltage Capacitor Bank The load current provided by the grid to the electrical equipment is composed of active current and reactive current. The reactive current is exchanged between the power supply and the load, which greatly occupies the grid, greatly reduces t...
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Jul 26,2023
Thanks to the customer's trust, we completed the production and delivery of 300kvar SVG in 10 days. The customer also successfully completed the installation. ZDDQ Power Quality Products ZD-APF Active Harmonic Filter ZD-SVG Static Var Generator ZD-DWT Thyristor Switched Capacitor Banks ZD-FGSVG MV Statcom ZD-GWJ MV Capacitor Banks
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Aug 23,2023
ZDDQ----Power Quality Issues in the Data Center Industry A large number of modern electrical equipment and devices are used in the data center industry, such as credit card terminal equipment, communication systems, computers, network control equipment, various digital office equipment, lighting control systems, fire protection systems, monitoring systems, etc. A large number of non-linear power l...
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Sep 18,2023
ZDDQ STATCOM FACTORY First-class production technology and the spirit of continuous innovation allow us to proudly display factory. European customers are welcome to visit our factory, see our manufacturing process with their own eyes, and experience this amazing field with us. Built with care and pursuing excellence, our factory welcomes you at any time!
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Nov 09,2023
We are ZDDQ, a professional manufacturer of Power Quality Products since 2001. Today, let's talk about the Fixed Reactive Power Compensation. Reactive power compensation refers to a method of compensating for reactive power in an electrical system using fixed-value reactive power devices. It involves the installation of passive components, such as capacitors or reactors, that provide a predetermin...
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Nov 17,2023
ZDDQ, a professional manufacturer of power factor correction and harmonic mitigation field since 2001. Today let's talk about power factor correction and energy saving. Power factor correction (PFC) is a technique used to improve the power factor of electrical systems. The power factor is a measure of how effectively the current is being converted into useful work in an AC electrical system. A low...
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Jan 05,2024
Delta Connection vs. Star Connection in Statcom: In Statcom(Medium Voltage Static Var Generator SVG), the choice between delta connection and star connection refers to the configuration of the converter valves within the device. The main difference lies in the way the valves are connected to the AC system. Delta Connection: In a delta-connected Statcom, the converter valves are connected in a delt...
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Jan 22,2024
n the context of the metallurgical industry, Statcom refers to Static Var Generator(SVG) or Static synchronous Compensator, which is a type of power electronics-based device used for reactive power compensation and voltage control. Statcoms are commonly used in metallurgical processes to improve power quality and stabilize the voltage levels. The primary function of an Statcom in the metallurgical...
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Feb 19,2024
What is harmonics issues in AC and DC grid? In AC and DC grids, harmonics refer to the presence of frequency components that are integer multiples of the fundamental frequency. Harmonics can be problematic because they can cause various issues such as: Voltage and Current Distortion: Harmonics in the grid can distort the shape of the voltage and current waveforms, resulting in distorted sine waves...
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Feb 26,2024
A Static Synchronous Compensator (STATCOM) is a power electronic device used for voltage control and reactive power compensation in electrical power systems. It is typically connected to the grid and is capable of injecting or absorbing reactive power to regulate the system voltage. The control of voltage by a STATCOM is primarily achieved by manipulating its reactive power output. Here's a basic ...
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Mar 07,2024
Statcom, short for Static Synchronous Compensator, a device used in power systems to regulate and improve power quality While Statcoms primarily used in electric power transmission and distribution systems, they may also have applications in industrial settings. Statcom,we also call high voltage Static Var Generator SVG In the of a furnace load Statcom can provide benefits, including: 1 Voltage Re...
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Mar 20,2024
Urban rail transit systems mainly include: subway systems, light rail systems, monorail systems, trams, maglev systems, automatic guide rail systems, and urban rapid rail systems. According to the different nature of electricity consumption, the power supply system of the subway system is mainly divided into two, one is the traction power supply system and the other is the power lighting power sup...
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Mar 25,2024
Static Synchronous Compensator (STATCOM) is a device used in power systems to control voltage and reactive power. In the context of rail transit, STATCOM can serve several purposes: Voltage Regulation: STATCOM can regulate the voltage levels in the rail transit system, ensuring that they remain within acceptable limits. It can compensate for voltage drops or fluctuations caused by various factors ...
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Apr 12,2024
Zero sequence current, known as residual current or triplen harmonic current, is a phenomenon that occurs in electrical systems due to the presence of unbalanced loads or nonlinear loads. The primary reason for the presence of zero current is unbalanced loads. In a three-phase power system, the loads are ideally balanced, meaning that the three phases draw equal currents. However, in practical sce...
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Apr 17,2024
1. What is reactive power? In the operation of the power grid, due to the existence of current and voltage, there is not only active power but also reactive power in the power system. Active power is the part of electrical energy that is directly converted into efficiency, such as the process in which electrical energy driving motors, heaters and other loads is converted into mechanical energy and...
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May 06,2024
What is nonlinear load? A nonlinear load is a load whose current is not proportional to its voltage. Since some electronic components, such as transistors and diodes, exhibit nonlinear characteristics when operating, in actual power consumption, some electrical equipment connected to the load will deform the current waveform. This deformation causes the voltage to distort and generate additional f...
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May 29,2024
Active filters and passive filters are two types of filters that are often used in electronic circuits. Although they can both be used to filter certain frequencies in electrical signals, there are some different differences between them. 1. Working Principle Passive filters mainly rely on passive components (such as capacitors, inductors, resistors, etc.) to filter signals. They can only process ...
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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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