Richard P. Bingham

Power Quality Columnist

Richard P. Bingham, a contributing editor for power quality. He can be reached at 732.287.3680.

Articles by Richard P. Bingham

December 2017
At a small telecommunications facility, equipment mysteriously started self-destructing for no apparent reason. Laptops, routers, printers and cell phones were apparently just becoming nonfunctional. The facility operator’s first call was to the electric utility, because the operator figured “dirty” power must have been the culprit. READ MORE
November 2017
When a customer complained about the lights flickering in the past, it was difficult to get a quantitative measure of the problem. The parameter, Pst (perceptibility short term), specified in IEC Std 61000-4-15 and eventually IEEE Std 1453-2004, now provides such a quantitative approach. READ MORE
  • Lightning-induced damage

October 2017
In the August issue, I reviewed some common power-quality related issues, including insulation failures on a motor’s outer windings, unexplained offline trips of adjustable speed drives, blown fuses on surge suppression strips, damaged electronic equipment power supplies, premature lamp and ballast burnout, and noisy motor bearings. This month, I highlight more common issues.
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September 2017
I often receive data files recorded from power quality monitors to analyze the reason a piece of equipment experienced an event. This analysis is followed by determining the cause and who is to blame. Others want to know if their supply quality is acceptable or “normal” (whatever that means) for their unspecified equipment or if they should call their utility to improve it. 
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  • Capacitors that blew up from a power supply failure
August 2017
In my 40-plus years in the industry, I have analyzed customers’ power quality monitor data files and heard their stories about hundreds of things that have happened in their facilities or homes: some mysterious, some catastrophic, some even comical. The following are just a few common types of PQ-related issues that don’t just happen to “the other guy.”
 Failing insulation on outer motor windings READ MORE
July 2017
Over the past two years, the technical committee responsible for IEEE 1547, Standard for Interconnecting Distributed Resources with Electric Power Systems, has added a section on power quality (PQ), including the parameters, indexes and limits on those for distributed energy resources (DERs) connecting to the electrical power system (EPS), including distribution and transmission systems. 
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June 2017
It seems like every decade or so, elementary school educators employ a new way of teaching math. When parents try to help, they are greeted with “That’s not how we do it.” Yet the fundamental laws of mathematics haven’t changed since the time of the ancient Greek and Persian mathematicians.
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May 2017
Reviewing data files from power quality (PQ) monitors to find evidence pointing to the cause of a customer’s problems may sound simple enough for someone who has worked in the industry for more than 35 years. However, it is often a challenge to have the customer provide the information necessary to determine what is what.
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  • Figure 1: Voltage and current transients during switching
April 2017
Engineers in a large electric utility’s power quality (PQ) department had installed PQ monitoring to determine the source of a system component’s failures. They needed to see the voltage and current waveforms before, during and after the cap banks were switched in and out. READ MORE

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