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Technical Article: Utility AC Voltage Levels
Anyone receiving power from an electric utility will see the nominal incoming voltage level (e.g. 120V) change over the course of a day to a small or large degree. There are many factors contributing to the amount of voltage level fluctuation observed including: 1) location on the local
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Humidifier Case Study (GTS): Region of Waterloo Water Testing Laboratory; Ontario, Canada
When electric utility and maintenance costs at the Region of Waterloo (Ontario, Canada) Water Testing Laboratory became more than the budget could bear, Brian Bechtel, coordinator of energy management for the Municipality of Waterloo, sought a more economical way to attain the indoor air quality
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Medical Device Link .
Park, IL) to develop and market in vitro molecular diagnostic products. And in October 2002, the company reached an agreement with Quest Diagnostics Inc. (Teterboro, NJ) and Laboratory Corp. of America (LabCorp; Burlington, NC) to collaborate in establishing the clinical utility of laboratory tests
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Technical Article: Changing Voltage Levels
One must realize that utility voltage levels are very dynamic and will most assuredly change over time - for better or for worse; instantly or over a long period. The problem is often that there is no advance warning about when, how much or in which direction they will change. An electric utility
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Virtual Engineering Lab for Motor Testing and Development
a logical port on the local machine for. A central issue in the performance of any Internet system incoming data from remote users. Once read, these data are. is, of course, time delay (see the sidebar "Effects of Delay passed to utility functions for decoding. Numerical data are. on Stability
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Technical Article: Voltage Drop In a Facility
It is expected and accepted (in the U.S.) that there will be a voltage drop of 3 to 5% from the point where the electric utility delivers power to the end user (usually at the meter) to the point within a facility where the electricity is finally consumed in an electrical device (the load). Unlike
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Sulfur Hexafluoride (SF6) Insulating Gas Leak Detection with an IR Imaging Camera
For years, electric utility transmission thermographers have wanted a camera that could spot leaking sulfur hexafluoride, SF6. As an insulating gas, SF6 is widely used by the electric power industry in high voltage circuit breakers to prevent arcing. Early efforts met with limited success through
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Technical Article: The Cost of Voltage Problems
Few homeowners can justify the cost of an automatic voltage regulator for whole-house application. Except for those living in remote or isolated areas, the voltage supplied by the local utility is usually entirely adequate for common household appliances and electronics. Even if the voltage levels