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Nov 21,2019
ZDDQ power quality correction products are part of the solution. Most utilities charge for peak electrical demand on each month’s electrical bill. The demand charge is to allow the utilities to recoup part of their capital investment in the distribution network they operate. Each customer pays a demand charge for its peak operating load. Often inherent in the structure of these demand charges is a...
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Jan 07,2020
Part 1:Principle of reactive energy management All AC electrical networks consume two types of power: active power (kW) and reactive power (kVAr): The active power P (in kW) is the real power transmitted to loads such as motors,lamps, heaters, computers, etc. The electrical active power is transformed into mechanical power, heat or light. The reactive power Q (in kVAr) is used only to power the ma...
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Feb 10,2020
WHAT IS HARMONIC FILTERING? To understand the purpose of harmonic filtering, it helps to understand what harmonics are. The voltage of a standard 50Hz Alternating Current(AC) power supply swings between positive and negative 50 times a second, following a neat sine-wave. Linear AC electrical loads such as heaters or incandescent lights draw a current that follows this same sine-wave. The graph abo...
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Feb 18,2020
How much can be saved? Ultimately the level of energy saving achieved will be dictated by a combination of the incoming supply voltage level and the types of electrical equipment in use. The higher the supply voltage, the greater the potential to make energy savings. However different types of electrical equipment deliver different levels of energy saving for the same reduction in voltage. Voltage...
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May 13,2020
High Power STATCOM in Electricity Networks A High Power STATCOM is usually installed to support electricity networks that have a poor power factor and often poor voltage regulation. STATCOM –static synchronous compensator – is a solution often deployed by utilities or large industries to solve flicker, harmonic and dynamic reactive compensation problems in medium voltage or high voltage netw...
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Dec 18,2020
Introduction From ZDDQ professional engineers: Power systems are designed to operate at frequencies of 50 or 60Hz. However, certain types of loads produce currents and voltages with frequencies that are integer multiples of the 50 or 60 Hz fundamental frequency. These higher frequencies are a form of electrical pollution known as power system harmonics. Solution ZD-APF(Active Power Filter). This i...
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Dec 29,2020
The rising power consumption for the power quality equipment is the key driving factor for the market growth ZDDQ found according to the report: The global power quality equipment market size is projected to reach nearly USD 33.7 billion by 2028. Additionally, the market is forecasted to grow a CAGR of above 6.5% over the forecast period of 2020-2028. The key motivating force for the power efficie...
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Jan 16,2021
Status analysis According to marketing research by ZDDQ(ANHUI ZHONGDIAN ELECTRC CO., LTD.). To reduce energy consumption and increase energy efficiency, many facility management executives are looking to renewable energy sources, such as solar or wind, to offset reliance on traditional electric power. Despite the growing prevalence of these solutions, there are drawbacks that can make alternative ...
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Mar 08,2021
High Voltage Power Capacitors Fields of Application INDIVIDUAL POWER FACTOR CORRECTION The power factor correction capacitor is connected directly to the terminals of the consumer and will be switched together with it. Advantages of individual capacitors at the load: • Complete control; capacitors cannot cause problems on the line during light load conditions • No need for separate switching...
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Mar 20,2021
A capacitor bank is a grouping of several identical capacitors interconnected in parallel or in series with one another. These groups of capacitors are typically used to correct or counteract undesirable characteristics, such as power factor lag or phase shifts inherent in alternating current (AC) electrical power supplies. FEATURES: Power factor correction by multi step design Standard & detu...
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Apr 17,2021
Many facilities have mandates to save energy. Improving energy efficiency offers huge advantages to businesses—reducing the costs of energy and operations— and increasing sustainability. Ⅰ. Abstract Through proven methods including variable frequency drives (VFD), LED lighting and conservation methods and control, many new and existing facilities achieve the savings that they expect. However, many...
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Apr 26,2021
Power Factor Penalty An electric rate may also include additional charges when the customer has a power factor less than some preset limit, typically between 80 and 90 percent. This is called a power factor penalty since it is a penalty assessed on the customers electrical bill for lower than optimum power factor. Special devices called capacitors can be installed by either the utility or the cust...
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May 27,2021
Upgrading Older Capacitor Banks is Important As an inexpensive source of reactive power, capacitor banks bring many benefits to a facility. They are widely deployed to avoid penalties on utility bills, lower distribution losses, increase transformer/Genset capacity, maintain nominal voltage, and to reduce energy losses resulting in decreased carbon emissions. When coupled with reactors, capa...
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Jun 07,2021
Energy consumption pattern The energy pattern given in below table is helpful in understanding the way energy is used in a foundry and helps to control energy cost by identifying areas where waste can occur and where scope for improvement may be possible. It is observed that melting consumes a major portion of total energy consumed. SN Sections Energy Consumption 1 Melting(Furnance) 70% 2 Molding ...
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Sep 29,2022
The ZDDQ SVG module we exported to Colombia in mid-September has been put into use and installed in an airport power distribution room somewhere in Bogota, and the compensation effect is good. The two modules are: 440V 60Hz 40kvar(50A) SVG Module and 440V 60Hz 80kvar(100A) SVG Module.
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Mar 17,2023
ZDDQ Active Power Filter Exported to Lebanon. We are ZDDQ, which is a professional designer and top manufacturer of power quality field. And we focus on power quality improvement and power factor correction since 2001. In recent years, our business sector in the Middle East has gradually expanded, and more and more customers choose to use ZDDQ products. The following is a 100A active harmonic filt...
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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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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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