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Aug 03,2020
Low Power Factor Operation of Induction Motor Induction Motors finds various applications in industries and household equipments. Such machine requires magnetic fields for its functioning hence, it draws magnetizing current from the source. The magnetizing current is the current that establishes the flux in the air gap of an Induction motor and this is independent of the load on the motor. It is t...
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Sep 15,2020
Leaders in Power Quality Solutions ZDDQ is one of leading manufacturers of power quality solutions from China. Here at ZDDQ we believe in creating and maintaining the highest quality power possible for our customers through an indepth understanding of power usage and electrical efficiencies. We source world’s best components to manufacture custom solutions to reduce maintenance and energy costs. N...
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Sep 24,2020
480V power quality solutions has the best compatibility for low voltage grid(3 phase 4 wire).ZDDQ has full series 480V devices for power quality improvement and power factor correction. 480V Active Power Filter Active Power Filter has various compensation modes (harmonic, reactive power, three-phase unbalance and capacitor switching control), which can simultaneously make the said various compensa...
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Oct 21,2020
Our Indian Clients and African Clients has installed hybrid reactive power compensation system. After our guide, they use ZDDQ SVG mixed with Capapacitor banks based on Contactors and Thyristors. A united system of thyristor switched capacitor (TSC) and static var generator (SVG) was proposed to improve voltage regulation, stability, and power factor in ac transmission and distribution systems. Th...
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Oct 30,2020
Our low voltage Static Var Generator has widely installed in many countries and has a good function and quality performance. In some countries, client use our SVG to compensate reactive power together with their capacitor banks, which is named as hybrid compensation system. In some countries, our SVG are used for power factor correction at the site where the load changes fast and frequently. And s...
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Nov 11,2020
With our best quality of our products and good relationship in the power quality field, we just received an important order for medium voltage capacitor banks. Backgroud. The rated voltage is 10kv. The total capacity is 35.4Mvar. There are individual type capacitor banks, central capacitor banks. Also there are fixed capacitor banks, and mulitipl-step automatic capacitor banks. As we know, STATCOM...
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Nov 23,2020
ZDDQ Static Var Generator SVG and Active Power Filter APF adopt dual interface of Current Transformer,which has great to facilitate new project design and adaptation to old projects. Our SVG and APF can accurately calculate the load harmonic current data and provide perfect compensation effect. For following sites, Both single module or multiple modules in parallel, Multiple active filter/SVGcabin...
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Nov 30,2020
Relations between Reactive power,power factor and penalty Power Factor penalty is spelled out in the contract between the Power Company and Industrial or Commercial customer with large three phase loads. If the contract calls for 85% Power Factor, once the customer’s power factor falls below 85%, the Power Company bills the Customer according to the agreed penalty rates. Industrial loads are mostl...
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Dec 09,2020
The static var generator (SVG) with appropriate control method is a good solution to solve the problem of reactive power impact and harmonic pollution which is generated by the nonlinear load. A control strategy using active current separation and the current indirect control is used for SVG. The active current separation is a method for detecting the harmonic and reactive current, and then the su...
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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 22,2020
SVG: Static Var Generator ANHUI ZHONGDIAN ELECTRIC CO., LTD. static var generator is a static electrical device/equipment/system that draws controlled capacitive or inductive current from the electrical power system and thereby generates or absorbs reactive power. Permanently connected and switchable reactor and capacitor banks have been always used in AC power systems to ensure desirable voltages...
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Dec 26,2020
Power factor is the percentage of consumed power(KW) versus supplied power(KVA). This is important because a low power factor can waste energy, result in inefficient use of electrical power, and often result in higher energy bills. Power Factor Correction will improve the energy efficiency of any electrical system, but a reduction in your power bill is only available where a power company charges ...
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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 05,2021
Power factor correction capacitor banks and harmonic filters. Power factor correction capacitors and harmonic filters are an essential part of modern electric power systems. Power factor correction capacitors are the simplest and most economical means of increasing the capacity of any power system, minimizing energy losses and correcting load power factor. In addition, power factor penalties can b...
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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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Feb 03,2021
HV/MV Power factor correction is directly related to the different aspects that assist the technical management of transport and distribution networks. These are: Power quality This involves the increase in the levels of voltage in substation busbars and line ends. Optimisation of the installation's cost of operation In other words, the decrease of the reactive energy and, therefore, the reduction...
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Feb 27,2021
Introduction to Active Harmonic Filter Suitable to be fitted within large installation systems, Active Harmonic Filters are used to eliminate, or at least mitigate, harmonics experienced from power received from the Australian national grid. The electricity which is delivered to a property is not necessarily ‘clean’ and therefore properties can experience harmonics. Harmonic currents lead to power...
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Mar 04,2021
ZDDQ Active Harmonic Filter Active Harmonic Filter is a perfect comprehensive solution to power quality problems with power grid such as harmonic wave, reactive power, and three-phase load unbalance. ZD-AHF-4 active harmonic filter is connected in parallel in 380V~456V power grid, to detect the harmonic wave in power grid in real time, generate the reverse-phase compensation current through the co...
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