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

February 2003
A presentation at the PQ World 2002 Conference in October re-enforced the need to continue to make the electrical workplace a safer place to work in. While it would be ideal, it’s not always possible to de-energize electrical systems before working on them. READ MORE
January 2003
Due to the proliferation of TVSS (transient voltage surge suppressors), while voltage transients are still here, they may not be captured by most power-quality monitors much longer. READ MORE
November 2002
* For referenced figures, please refer to ELECTRICAL CONTRACTOR magazine. If the data recorded appears to violate the laws of physics, apply the test of reasonableness to the data before attempting to fix something that isn't real. READ MORE
September 2002
A single-phase, rectified input, switching power supply will have a sharp reduction in current at the beginning of a sag, followed by an increase in current to a value greater than the original current levels, until the sag has ended or the equipment trips off line. READ MORE
August 2002
Please see Electrical Contractor magazine for referenced Figures. -------------------------------------------------- A periodic voltage sag on a single-phase line occurring approximately every 30 to 60 seconds, accompanied by a sharp increase in resistive current and/or a sharp increase in the neutral-to-ground voltage, is probably due to a laser printer, copy machine or similar type load. READ MORE
July 2002
A voltage sag originates at the startup of a motor. if the voltage drops quickly and steadily increases, you have sag. Some signatures of power quality (PQ) phenomena are difficult to discern from the megabytes of data that PQ monitors can produce in a relatively short time. Motor starts, fortunately, are easy to determine, and quite common. READ MORE
June 2002
(Please refer to ELECTRICAL CONTRACTOR magazine for referenced figures). On a single-phase circuit, the origin of a voltage sag is usually downstream if the neutral-to-ground voltage significantly increased during the sag. READ MORE
May 2002
For the past three years, this column has covered a different power quality-related topic each month. Now that most of the major areas have been covered, it seems as though it is time to use a different approach. The forthcoming months will each feature a “PQ Rule” or a single concept that can be used in many applications to solve or interpret the data gathered from a power quality monitor. READ MORE
April 2002
Today’s power quality (PQ) monitors are capable of capturing more data in a second than could be humanly processed in a day. Techniques employed, such as “report by exception,” can help to minimize data, but it still doesn’t answer the question, “Is this meaningful information?” This doesn’t prevent the user from applying the “test of reasonableness” to the data collected. READ MORE

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