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Mar 26,2021
Congratulations to the company for mentioning the new car Anhui Zhongdian Electric Co., Ltd., founded in 1988, is affiliated to the Design and Research Institute of the Ministry of Machinery Industry. It is a high-tech professional engaged in the R&D, production, sales and service of power quality equipment technology companies. The company passed the ISO9000 quality system certification in 20...
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Apr 12,2021
Power Quality Solutions and Energy Savings One of the most significant changes in the Power Quality industry in the past five years is the method of selling Power Quality solutions. Originally, Power Quality solutions were sold as an insurance policy to avoid potential damage from power disturbances such as transients,voltage sags, interruptions or harmonics. Today, many Power Qu...
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May 05,2021
A SECONDARY SOURCE Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations. Various common phenomena are related to electricity, including lightning, static electricity, electric heating, elect...
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May 13,2021
The climate is changing - but are you? Changes in the way you live your life - both big and small - can help you reduce your own personal carbon footprint, and also encourage policy makers to act for the good of the planet. Below is a list of several easy things you can do right now to help fight climate change. The greatest threat faced by this generation is climate change. Because without a habi...
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May 18,2021
Harmonics and Active Power Filter In recent years, the use of non-linear load is increasing day by day. Non-linear loads such as traditional diode/ thyristor rectifiers with inductive load generate harmonic and reactive current, which leads to poor power factor, low energy efficiency, and harmful disturbance to other appliances. Also, in recent years, the large-scale use of the power electronic eq...
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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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Jul 22,2021
An example of how to calculate the capacity of reactive power (kVAr)? An Motor is supplying a load of 700 kW at a P.F (Power factor) of 0.65. What size of Capacitor in kVAr is required to raise the P.F (Power Factor) to unity (1)? And how many more kW can the motor supply for the same kVA loading when P.F improved. Supplying kW = 700 kW Original P.F = Cosθ1 = 0.65 Final P.F = Cosθ2 = 1 θ1 = C...
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Oct 15,2021
Overview Rapid growth of inductive electric loads on utility networks has impacted the efficient operation of AC electrical transmission and distribution grid by increasing the need for reactive power (VAr/kVAr/MVAr) that are required to be supplied with active power. Install capacitor banks to reduce the reactive power demand from point of generation to point of use in high voltage networks. Brin...
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Jan 15,2022
ZDDQ carefully understood the spirit of the document, and organized employees to focus on watching the TV feature film "Life is more important than Mount Tai—Learning General Secretary Xi Jinping's important exposition on safe production", so as to achieve full coverage of learning and attach great importance to this work.
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Jan 20,2022
Static Synchronous compensator (STATCOM) is a fast-acting device capable of providing or absorbing reactive current and thereby regulating the voltage at the point of connection to a power grid. It is categorised under Flexible AC transmission system (FACTS) devices. The technology is based on VSCs with semi-conductor valves in a modular two-level configuration. ZDDQ Statcom have installed in many...
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Mar 12,2022
ZD-HVSVG series HV static var generator/SVG/STATCOM using IGBT as the core power modules which can quickly and continuously provide capacitive or inductive reactive power, achieve constant reactive power, constant voltage and constant power factor control through the assessment point, and ensure the power grid is running stable, high efficiency and high quality. In the power distribution...
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Mar 27,2022
SVC: A static VAR compensator (SVC) is a set of electrical devices for providing fast-acting reactive power on high-voltage electricity transmission networks. Statcom: A Stati synchronous COMpensator (STATCOM) is a fast-acting device capable of providing or absorbing reactive current and thereby regulating the voltage at the point of connection to a power grid. Advantages of SVC SVCcontrol vo...
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Apr 25,2022
Statcom in Solar Shanxi Taigu County Wind and Wind Power Generation Co., Ltd. 20MW agricultural and photovoltaic complementary power generation project is located in Donghuaiyuan Village, Shuixiu Township, Taigu County, Jinzhong City, Shanxi Province. The total installed capacity of the project is 20MW Solar. The project covers an area of more than 466,000m2. Based on the principle of focusing on ...
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Jun 30,2022
The benefits of power factor correction 1.Savings on the electricity bill Power factor correction eliminates penalties on reactive energy, decreases demand on kVA, and reduces power losses generated in the transformers and conductors of the installation. 2.Increased available power Fitting PFC equipment on the low voltage side increases the power available at the secondary of a MV/LV transformer. ...
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Jul 05,2022
Step–less reactive compensator –STATCOM Static Synchronous Compensator (STATCOM) hasearned its name as it does not have any rotating or moving parts, and yet offers a fast and step-less reactive compensation. It is based on voltage source converter (VSC) technology, which uses low-voltagecells in series to realise a high voltage output By controlling the output voltage to be either higher or lower...
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Aug 03,2022
Energy demand is anticipated to be double by 2030. CO2 emissions should be halved to avoid global warming acceleration. Both issues place a major challenge on the generating capacity of all utilities, and on us as electricity end users. Energy efficiency becomes more than a cost issue today. It becomes part of the journey to ensure energy availability and preserve the environment in the future. Ma...
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Aug 09,2022
ZDDQ-SVG Static Var Generator is an electronic reactive power compensation system, for both capacitive and inductive power. It has the same operating principle as an active filter; the SVG injects a current in the opposite direction to counteract the installation's non-useful power (inductive and capacitive), thus ensuring that the target cosϕ is achieved. ZDDQ SVG instantly compensates and adjust...
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Aug 22,2022
The application of distribution system capacitor banks has long been accepted as a necessary step in the design of distribution feeders. Design considerations often include traditional factors such as voltage support, power factor, and released capacity. However, as customer systems evolve through the use of power electronics, the distribution system design of the future will include power quality...
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