Due to the rapid development of power electronic technology, the nonlinear characteristics of industrial and agricultural power loads, especially transportation and civil electrical products are becoming more and more serious, and the power factor of users is also declining. Therefore, reactive power compensation devices are more and more widely used. The power compensation device is used to suppl...
Why is load balancing important in 3-phase networks? It is just as important to balance single phase loads as it is three phase loads. The grounded circuit conductor (neutral) carries all unbalanced current. If the imbalance is greater than the neutral,it could become overloaded, heat up and start a fire. There is no over-current protective device for this conductor. If you buy a transformer with ...
Prehistoric era -PT PT is the earliest generation of IGBT. It uses heavily doped P+substrate as the starting layer, on which N+buffer and N-base epitaxy are successively grown, and finally the cellular structure is formed on the surface of the epitaxy layer. It is named because the electric field runs through the entire N-base region at the cut-off time. Its process is complex, its cost is h...
Power Factor Correction and Reactive Power Compensation Power Factor Correction(PFC) is done by electricity consumers to avoid penalties on account of large KVA demand or lower power factor. Normally, such penalties are imposed on industrial consumers. Therefore, industries need more lagging KVAr due to induction motors or otherwise, install capacitors banks or Static Var Generator(SVG) for power ...
Variable Speed Drives (VSDs) Do you have AC motors in your facility?Do these motors need a variable output? The growing popularity of Variable Speed Drives (VSDs) is a key driver of energy efficiency, but Variable Speed Drives cause power quality problems, one of which is the harmonics within power systems. So networks requires more effective means to mitigate harmonics. In C...
Over its 100-year history, welding has become one of the most essential technical skills in manufacturing and fabrication. The process of using high-temperature, electrical-powered heat to fuse two pieces of metal or synthetic material has been incorporated throughout the industry in an increasingly wide variety of applications that rely on a range of tools and techniques. But Electrical welding m...
Does Active Harmonic Filter can saving energy? YTPQC-AHF Active Harmonic Filter can save energy by reducing the amount of harmonic distortion in a power system. Harmonic distortion can cause power losses and reduce the efficiency of electrical equipment, so reducing it can help to save energy. How does active harmonic filter save energy？ YTPQC-AHF Active Harmonic filters can save energy by ...
What is the power quality problems at sites with welding machines? The most common power quality problems associated with welding machines are voltage sags, harmonic pollution, and electromagnetic interference. Voltage sags can cause the welding machine to operate at a lower than expected output, resulting in poor weld quality. Harmonic distortion pollution can cause interference with other equipm...
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