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...
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...
Hybrid power factor correction Hybrid Active power factor correction systems utilise power electronics and digital control to achieve active reactive current compensation for specific and high performance solutions. YTPQC hybrid power factor correction system is comprised from both capacitor based and Static Var Generator(SVG,Active Power Factor correction). Static Var Generator is use...
Harmonics and 3rd order harmonic Harmonics are the result of nonlinear loads that convert AC line voltage to DC. Harmonics flow into the electrical system because of nonlinear electronic switching devices, such as variable frequency drives (VFDs), computer power supplies and energy-efficient lighting. Today, the most prevalent and growing harmonic sources are: VFD’s, EC motors...
The 31st Shanghai International Power Equipment and Technology Exhibition Recently, the focus of attention in the power industry has gathered at a highly anticipated event - the 2023EP Power Exhibition. The exhibition brings together leading enterprises, experts, and technology innovators in the industry, aiming to share the latest power system solutions, showcase advanced equipment and tec...
Power quality management in distributed photovoltaic (PV) refers to the measures and strategies employed to ensure the reliable and efficient operation of PV systems while maintaining the quality of electrical power supplied to the grid. Here are some key aspects of power quality management in distributed photovoltaic: Voltage Regulation: PV systems can introduce voltage fluctuations due to the in...
Power electronics devices are widely used in various applications including renewable energy systems, electric vehicles, motor drives, and power supply systems. While power electronics devices provide flexibility and control, they can also introduce power quality problems. Some of the common power quality problems caused by power electronics devices are: Harmonic Distortion: Power electronics devi...