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 ...

This article is Part 6 of a seven-part series on the effects of power quality disturbances on a five-stage electronic LED driver. Part 1 (April 2018) dealt with long-duration voltage variations. Part ...

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 ...

Restrikes or re-ignitions occur when the dielectric strength of the open gap, during contact parting, is not great enough to withstand the recovery voltage across the open gap. With a capacitive load, ...

Common traits of digital multimeters (DMMs). Classifying DMMs by their amount of digits. What role do digitizers play in making voltage measurements? Measuring voltage may be the most basic ...

Modern digital oscilloscopes offer a host of analysis capabilities since they digitize and store input waveforms for analysis. Most oscilloscopes offer basic math operations such as addition, ...