Power Factor in Networks Power factor is a measure of the phase difference between the voltage and current in an AC power system. In purely resistive loads (such as an incandescent lightbulb or electric kettle) the current is in phase with the voltage and there is ‘unity’ power factor. Capacitive and inductive loads (such as a capacitor banks or inductive motor respectively) will cause...
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...
Capacitive reactive power The reactive current of the load is generally inductive, so we can use capacitor bank to compensate it. However, the reactive power generated by loads such as UPS and charging pile is capacitive. Capacitor banks cannot compensate capacitive reactive power, so the latest reactive power compensation technology SVG Static var generator needs to be used to compensate cap...
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 ...
Site conditions The site is located in Hangzhou Asian Games Village.The project has more than 20 power distribution rooms. Due to the main load being fire-fighting facilities, which are generally not started, the transformers almost all operate without load, and the cable length is long, resulting in capacitive reactive power at both the high and low voltage sides, which cannot be compensated by t...
What are scenarios causing power factor displacements 1. Poorly designed electrical systems with inadequate power factor correction equipment. 2. Large inductive loads such as motors, transformers, and generators that cause lagging power factor. 3. Unbalanced three-phase loads that cause phase displacement of the current and voltage waveforms. 4. Unbalanced single-phase loads that cause current an...
English
français
Deutsch
español
العربية
中文
IPv6 network supported
