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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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May 31,2021
Power Qaulity Issue Power quality issues can increase your utility and operating costs. In a 3-phase power system, any disturbance on one parameter (magnitude, frequency, waveform, or symmetry) is classified as a power quality problem. Even minor disruptive voltage fluctuations can cause major issues from equipment malfunctions, to flickering lights, to complete power shutdowns. Power quality prob...
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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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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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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 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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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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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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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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Mar 30,2021
Why harmonics analysis? When a voltage and/or current waveform is distorted, it causes abnormal operating conditions in a power system such as: Voltage Harmonics can cause additional heating in induction and synchronous motors and generators. Voltage Harmonics with high peak values can weaken insulation in cables, windings, and capacitors. Voltage Harmonics can cause malfunction of different elect...
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