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

  • Figure 1: Typical magnitude of voltage sag as percent of nominal compiled of EPRI DPQ Project in 1990s
August 2015
A customer recently called me about the information on his power quality monitor screen. He said about a dozen different events were showing up, but the lights had just blinked once. He wanted to know what all of the other nonsense was supposed to tell him. Why did his process stop when the lights blinked off for a second? READ MORE
July 2015
A hot summer’s evening usually begets long lines at the local ice cream shop. Recently, at one such shop, the line grew extra long when the cash registers and credit card machines mysteriously powered off and on. The youthful operators attributed the problem to the use of all three soft-serve ice cream dispensers on busy days.
June 2015
The blinks and flickers referred to here can best be described as “voltage fluctuations on electric power systems [that] sometimes give rise to noticeable illumination changes from lighting equipment.” The Institute of Electrical and Electronics Engineers (IEEE) standard that covers this is about to be published with major revisions in content and direction.
May 2015
When one of the coaches was asked before the “big game” what would be the key to his team’s success, he said, “executing the fundamentals.” While blocking, tackling, passing and catching may work for football, Ohm’s and Kirchhoff’s Laws are fundamental to understanding any power quality issue. READ MORE
April 2015
This month, we honor perhaps the most notable person in the history of the power quality (PQ) industry, often called the father of PQ monitoring: Abraham I. Dranetz. Some of us knew him as Abe, and others knew him as Mr. Dranetz. He would have been 93 this May, yet he never stopped contributing to the industry and the world in so many ways. READ MORE
March 2015
The categories or labels used to describe the plethora of power quality phenomena that can occur on electrical systems have not changed much in the past decade or two. Measurement methods and acceptable limits for most systems have changed. READ MORE
February 2015
Last month, we looked into positive, negative and zero-sequence components, also known as symmetrical components, with virtually no math involved. READ MORE
January 2015
In attempting to explain to a colleague why we care about negative sequence components, I tried to follow the guidance that Bob Lawrie, another member of the NFPA 70B Electrical Equipment Maintenance committee, offered to me many years ago: never use a formula in an article. While engineers may take joy in formulas and math, the general public typically does not. READ MORE
December 2014
In preparing to write my next article, I often review the topics I have covered in the past year or so, and I consider the issue’s theme. Being a sometimes overly analytical engineer, I keep track of just about everything in a spreadsheet, from the topics of ELECTRICAL­ CONTRACTOR articles, to budgets to my home’s utility bills. READ MORE