The PVX-4150 pulse generator produces fast, high voltage waveforms to 1 500 V. Optimized for high impedance capacitive loads, the PVx-4150 is well suited for driving extraction grids and deflection ...

A PQ expert can link an abnormal current or voltage waveform to an abnormal condition on a power system just as a handwriting expert matches a signature to a person. Many facilities now have online ...

Sometimes a simulation might reveal a mystery peak in a waveform, but don’t necessarily let that dissuade you if the circuit is working and EMI or any other potential dangers aren’t lurking. My ...

The first time I was in school for electrical engineering (long story), I had a professor who had never worked in the industry. I was in her class and the topic of the day was measuring AC waveforms.

Today we’ll take a journey into less noisy noise, and leave behind the comfortable digital world that we’ve been living in. The payoff? Smoother sounds, because today we start our trip into analog. If ...

There is a practical limit to how much voltage can be applied to an ESP field due to sparking, and sparking occurs at the peak of the secondary voltage waveform. The practical result is the average ...

Poor power supply quality—in the form of dips, dropouts, and other voltage variations—can result in electrical malfunctions that can have serious consequences. To verify that automotive systems will ...

To ensure efficient operation and safety over time, the properties and materials of photovoltaic (PV) panels must undergo many electrical and mechanical tests. The document that dictates PV panel ...

Variable speed drives (VSDs), sometimes also known as variable frequency drives, are electronic devices used to regulate the speed of an ac induction motor. Electric motors consume approximately 25% ...

Editor's note: This article was first featured in the February 2003 issue of EC&M. It has been updated to reflect newer power quality instruments and updated standards. Today, many facilities have ...