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How Does a Generator Create Electricity? How Generators Work
generates a moving magnetic field around the stator, which induces a voltage difference between the windings of the stator. This produces the alternating current (AC) output of the generator. The following are the factors that you need to keep in mind while assessing the alternator of a generator...
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Standby Electric Power: Assuring Critical Engines Start When Needed
, hospitals, telephone exchanges, high-rise building, data centers and water treatment plants. Backup generators can also reduce electricity cost during periods of peak demand by taking high-demand facilities off the AC grid. Diesel engines are also used drive centrifugal water pumps for fire suppression...
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Green technology: Inside an advanced wind turbine
handle as much power as generators could produce," he says. Mikhail is one of the patent holders on the technique which is now owned by GE. The doubly fed generator bleeds a small bit of ac power off the utility grid and converts it to a signal that creates the wound rotor's magnetic field at low wind...
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Design and Development of Medical Electronic Instrumentation
to science-fair projects. In contrast, this book will help. you discover the challenge and secrets of building practical electronic medical devices,. giving you basic, tested blocks for the design and development of new instrumentation. The projects range from simple biopotential amplifiers all the way...
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Data Encryption Routines for the PIC18
, sensitive material, especially electronic data, needs to be encrypted for the user's protection. For example, a network-based card entry door system that logs the persons who have entered the building may be susceptible to an attack where the user information can be stolen or manipulated by sniffing...
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AvoidingGrid Meltdown
Kentucky. Installed by Siemens three years ago, it is rated at 640 MVA. It sits in the building visible in the top of the aerial view. Nine other utilities currently have UPFCs installed. Unified power flow controllers, Statcoms, and SSSCs all employ voltage sourced inverter circuits, a concept that came...
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Avoiding Grid Meltdown
or inductor of varying values simply by controlling the firing angle of solid-state switches. One such device installed for the Bonneville Power Administration helps mitigate power oscillation problems caused by generator rocking. "It can detect a major disturbance and act within a single ac cycle," says...
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Wireless Sensor Network Aids Travelers in Parking Their Cars and Trucks
system. However, retrofitting these existing structures is complex and expensive. Such was the task facing a team from the UCLA Center for Embedded Networked Sensing trying to bring occupancy monitoring to a UCLA medical-building parking garage. They wanted to link an online database...
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Here comes the sun
roof-mounted array provides facility power to park residences, a ranger contact station, maintenance building, and campground. Talk to anyone involved in photovoltaics (PV) research and you will hear predictions that solar-electric technology is about to turn the corner. Photovoltaics, the direct conversion...
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Induction Heat Straightening - A Distortion Rework Reduction Tool for Thin Plate (.pdf)
Induction a.s. where he is. Mo steel. Huang et al. [3] have very clearly summarised a number. responsible for induction heating equipment sales in the European ship-. of the deficiencies of heat straightening, such as the non value. building industry and in automotive adhesive curing applications...