The Schaffner Group, a provider of EMC and power quality solutions, has announced its ECOsine passive harmonic filters are now available as open frame modules with extended power rating up to 400 kW/50 Hz and 500 HP/60 Hz. According to the company, the new modular filter concept specifically targets the requirements of integrators and the challenges of fitting a large amount … [Read more...]
‘Superlens’ Could Lift Restrictions on Wireless Charging
Scientists at Duke University have developed a new method of transmitting power wirelessly over much greater distances than previously achieved, bringing us closer to the possibility of a society where mobile electronic devices can be charged virtually anytime, anywhere. While the idea of wirelessly transferring power to an electronic device is not a new concept, experimental … [Read more...]
Stand-Alone Generator for Slow Damped Oscillatory Wave Testing
Teseq, a manufacturer of EMC emission and immunity testing instrumentation, has released the NSG 3040-SOW, a new stand-alone generator for slow damped oscillatory wave testing in single phase equipment up to 270 V and 16 A. Ideal for use by power stations, substations, electric meter manufacturers, relays and switch manufacturers as well as EMC testing labs, the NSG 3040-SOW … [Read more...]
EMC – Grounding on Automation and Control Systems Applications to Eliminate Electromagnetic Interference in Industrial Plants
Author Roberto Menna Barreto QEMC - Engenharia, Qualidade e Compatibilidade Eletromagnética Ltda., Rio de Janeiro, Brazil [email protected] Summary The preservation of signals and equipment are generally characterized by the term Electromagnetic Compatibility (EMC), whose essence will translate in its own grounding system. The proper EMC improvement in the … [Read more...]
System Uses EM Waves to Deliver Wireless Power through the Air
At the recent TED Global Conference in Oxford, UK, a US-based technology firm, WiTricity, demonstrated a system that delivers electricity through the air to power laptops, cell phones, and other electrical devices. This new system is based on the work of Professor Marin Soljacic, a physicist at the Massachusetts Institute of Technology. The concept of sending power wirelessly … [Read more...]
Health Risks of CFLs
In the most recent issue of its It’s Your Health newsletter, Health Canada examines questions about the safety of compact fluorescent lightbulbs (CFLs). In regard to fears regarding electromagnetic fields, the agency reports that at a distance of 30 centimeters from the lamp, EM exposure is well below accepted limits. The two areas of concern are the ultra-violet light … [Read more...]
Input Power – It’s More Than Just a Line Cord
The power distribution and control function has matured into a full-fledged design discipline. Roger Edelson Edelson Associates, Los Angeles, CA, USA Power distribution and control (and the associated cable management function), while not a sexy topic, has grown into a recognizable, and important, subset of industrial equipment design. Power distribution and control … [Read more...]
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