External electric load

External electric load - Factbites
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Topic: External electric load

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	Load - Wikipedia, the free encyclopedia
		External electric load, a device connected to the output of a circuit
		The structural load or forces (weights, wind or water pressure, earthquake shocks,.etc..) applied to a structure.
		Load (computing), a measure of how much processing a computer performs
	en.wikipedia.org /wiki/Load (120 words)

	Plug-in hybrid electric vehicle - Wikipedia, the free encyclopedia
		A plug-in hybrid electric vehicle (PHEV) or gas-electric hybrid fueled vehicle is a hybrid which has additional battery capacity and the ability to be recharged from an external electrical outlet.
		And the Electric Power Research Institute of Palo Alto, along with a number of utilities and government agencies, is working with DaimlerChrysler to deliver three plug-in hybrids built on the Mercedes Sprinter platform (a 15-passenger van).
		In this mode of operation the vehicle operates as a pure electric vehicle with a weight penalty (the ICE).
	en.wikipedia.org /wiki/Plug-in_hybrid_electric_vehicle (581 words)

	Mclennan Servo Supplies, the UK based manufacturer and distributor of precision motion control, Tel 08707 700700, Fax 08707 700699.
		Finally the selection of an optimum motor and drive combination is outlined, matching the requirements of system speed, operating voltage, load, stability and torque with a suitable control system to give you a reliable and efficient system.
		Choice of either external or integrated drive electronics, spur or planetary gearheads that provide increased torque at reduced operating speed.
		A range of Stepper motor, DC Servo and control modules in standard Eurocard format ideally suited for system integrators to construct a wide range of motor control solutions.
	www.mclennan.co.uk (449 words)

	Class Definition for Class 290 - PRIME-MOVER DYNAMO PLANTS
		Wherein the operation involves an interchange of energy between the motor and the dynamo-electric machine and the dynamo electric machine is not subsidiary to the motor, but may as well be a source of external energy as the motor.
		The load may be moved by the prime mover or by a dynamo-electric machine operating as a motor.
		Electric-control traction prime-mover dynamo plants including a dynamo electric machine which acts as a motor for starting the prime mover and as a generator and has a field and armature, both of which rotate, and a prime mover provided with means for controlling the same.
	www.uspto.gov /web/patents/classification/uspc290/defs290.htm (2289 words)

	World Navies Today: Germany
		Displacement: 1,558 tons full load Dimensions: 67.9 x 12.74 x 4.2 meters (223 x 42 x 14 feet) Propulsion: Diesel-electric, 4 diesels, 2 shafts, 3,300 shp, 16.6 knots Crew: 34 Armament: 2 40 mm Salvage tug, equipped for firefighting, icebreaking and wreck location.
		Displacement: 1,830 tons submerged Dimensions: 56 x 7 x 6 meters Propulsion: Diesel-electric, AIP, 1 diesel, 1 shaft, 4,243 hp, 20 knots Crew: 27 Sonar: CSU-90 suite with bow, flank and towed arrays Armament: 6 21 inch torpedo tubes; 12 torpedoes (plus 24 external mines) A new-design submarine, significantly larger than previous boats.
		Displacement: 1,917 tons full load Dimensions: 80.43 x 12.6 x 3.97 meters (264 x 41 x 13 feet) Propulsion: Diesel-electric, 4 diesels, 1 shaft, 1,390 bhp, 13.9 knots Aviation: aft helicopter deck and hangar for 1 helicopter Crew: 39 civilian + 13 scientists Number Name Year Homeport Notes A1452 Planet 1967
	www.hazegray.org /worldnav/europe/germany.htm (2289 words)

	50
		It features the usual load of weapons in external hard-points, with the wing stores...
		General Electric CF6-50 General Electric CF6-50 series engines are high-bypass turbofan engines rated between 46,000 to...
		16-50 Mark 7 Note: The primer cartridge can be either electric or percussion fired.
	www.brainyencyclopedia.com /topics/50.html (2289 words)

	Class 338: ELECTRICAL RESISTORS / U.S. Patent Classification Definitions
		315, Electric Lamp and Discharge Devices: Systems, for electric lamp and discharge device systems which may include a resistor as an element of the system; and especially subclasses 3-3.6 and 8-31, for cathode ray tube circuits including resistors; and subclasses 32+ for a discharge device load with a resistor.
		The terminals are for the purpose of connecting the resistance element in an external electric circuit.
		220 for a resistor in a detachable electrical connector.
	www.uspto.gov /web/offices/ac/ido/oeip/taf/def/338.htm (13213 words)

	A Novel Sub-Micron Electrostatic Motor
		A novel sub-micron, solid-state motor is introduced that uses the electric field energy of an open-gap p-n junction to accelerate a piston attached to a load (Sheehan, Putnam and Wright, Found.
		The open-gap voltage may be provided either via external bias or via the thermally generated electric field inherent in the depletion region of a standard p-n junction (pictured).
		The operation of the motor depends on low values of friction between the piston and gap walls.
	www.foresight.org /Conferences/MNT10/Abstracts/Wright2/index.html (13213 words)

	China Electric Switch Products, Catalog, Samples - Alibaba Search for Electric Switch products
		Load switch-fuse integrated electric device and electric device panel may one-run switch on/off the rated short current
		Our weatherproof isolating switches are suitable for virtually any external application.
		We have about 500 series of switches, sockets, and home information systems.
	chinasuppliers.alibaba.com /search/china_products/Electric_Switch.html (893 words)

	High Power Converter of Microwaves into DC
		This is a well-known physical result: all power is transmitted from the external generator into the load when their conductivities are matched in a complex-conjugated way, i.e.
		However is also applicable to many other occasions where microwave power transmissions of high density of electric power is necessary, such as non contact wireless power transmission in factories and for power feeding to electric vehicles.
		For many types of wireless power transmission (WPT) systems, diode-type rectenna (rectify antenna) [ 1,2 ] is the best (and the simplest) device for back-conversion of microwaves into D.C. Diode-type rectennas have played and play a fundamental role at the stage of principal demonstration of the possibilities of high efficient wireless power transmission by microwaves.
	jre.cplire.ru /jre/sep99/1/text.html (893 words)

	Sixth International Conference on Substorms
		If the electric circuit has no ionospheric load, then the current of the MHD generator feeds the MHD compressor; if, however, such a load appears, then the compressor is fed only by the portion of the current that is not used by the ionosphere.
		On the whole, such a scheme makes it possible not only to reconcile magnetospheric and ionospheric currents but also to explain the appearance of the loading and unloading substorm phases.
		In addition to the above-mentioned current, which circulates between the generator and compressor, there exists also the dawn-dusk external current.
	www.engr.washington.edu /epp/ics6/abstracts/44.htm (257 words)

	Creamer Media's Engineering News Online, South African Industry News :: Valves
		The controls, which are mounted separately from the actuators, load independent speed control of the motor, process the control commands ‘open’, ‘stop’ and ‘close’, process the actuator signals, perform torque seating by means of a motor current limiting circuit and provide feedback signals to the higher-order control system.
		Due to the extreme environmental conditions to which ships are exposed, all external parts of the actuators are made from bronze and all external bolts and shafts are stainless steel.
		“Electric actuators are a key comp-onent in the flow and control in sensitive systems, determining the reliability and efficiency of entire plants decisively,” emphasises Mijatovic.
	www.engineeringnews.co.za /eng/sector/valves/?show=66045 (257 words)

	The photovoltaic effect
		Special electrical properties of the solar cell Ña built-in electric field (thanks to a P-N junction) Ñprovide the voltage needed to drive the current through an external load (such as a light bulb).
		The "photovoltaic effect" is the basic physical process through which a solar cell converts sunlight into electricity.
		Becquerel found that certain materials would produce small amounts of electric current when exposed to light.
	encyclobeamia.solarbotics.net /articles/photovoltaic.html (197 words)

	Model Rocket Engine
		Flying model rockets is a relatively safe and inexpensive way for students to learn the basics of forces and the response of vehicles to external forces.
		Liquid rockets tend to be heavier and more complex because of the pumps used to move the fuel and oxidizer, and you usually load the fuel and oxidizer into the rocket just before launch.
		An electric igniter is used to launch a model rocket engine.
	www.lerc.nasa.gov /WWW/K-12/airplane/rktengine.html (729 words)

	Siemens, Ernst Werner von - Hutchinson encyclopedia article about Siemens, Ernst Werner von
		Siemens introduced the double-T armature and succeeded in connecting the armature, the electromagnetic field, and the external load of an electric generator in a single current.
		Siemens was born near Hannover and studied at a military academy in Berlin.
		This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
	encyclopedia.farlex.com /Siemens,%20Ernst%20Werner%20von (240 words)

	Siemens, Ernst Werner von
		Siemens introduced the double-T armature and succeeded in connecting the armature, the electromagnetic field, and the external load of an electric generator in a single current.
		Siemens was born near Hanover and studied at a military academy in Berlin.
		Siemens's inventions include a process for gold-and silver-plating and a method for providing the wire in a telegraph system with seamless insulation, using gutta-percha.
	cartage.org.lb /en/themes/Biographies/MainBiographies/S/Siemens/1.html (240 words)

	Theory of Wireless SAW Sensor Systems
		Also shown are, again, the lines which result in a constant acoustic reflection of reflector #2, when this acoustic reflector is loaded with an external element with this electrical reflection coefficient.
		The right graph shows the variation of the electric reflection coefficient at center frequency of the sensing electrodes, including the matching circuitry which are put into a sandy soil, with respect to a change of the water content of this soil.
		The electrical length of the line varies with the changing water content of the soil due to the changing permitivity.
	ieee-uffc.org /freqcontrol/tutorials/Reindl_2002_files/slide0389.htm (240 words)

	Solar Energy Technologies Program: Electrical Contacts
		Electrical contacts are essential to a photovoltaic (PV) cell because they bridge the connection between the semiconductor material and the external electrical load, such as a light bulb.
		Another challenge in cell design is to minimize the electrical resistance losses when applying grid contacts to the solar cell material.
		These losses are related to the solar cell material's property of opposing the flow of an electric current, which results in heating the material.
	www.eere.energy.gov /solar/electrical_contacts.html?print (650 words)

	Probert Encyclopaedia: Ships (Con-Cq)
		The USS Connecticut does not have any external weapons, but is armed with Raytheon Tomahawk missiles (TLAM-N), guided by a Tercom Aided Inertial Navigation System (nuclear warheads are not usually carried);
		She carries a crew of 4782 including 1782 aircrew and is armed with three Raytheon GMLS Mk 29 octuple surface-to-air missile launchers taking the NATO Sea Sparrow missile and three General Electric/General Dynamics 20 mm Vulcan Phalanx 6-barrel MK 15 guns.
		She carries a crew of 428 including 25 officers and has five cargo holds, one of which is refrigerated, carrying about 2625 tons of dry stores and 1300 tons of refrigerated stores, varying with the load carried.
	www.probertencyclopaedia.com /R3C.HTM (2632 words)

	Electric motor - Wikipedia, the free encyclopedia
		Closely related in design to three-phase AC synchronous motors are stepper motors, where an internal rotor containing permanent magnets or a large iron core with salient poles is controlled by a set of external magnets that are switched electronically.
		DC motor speed generally depends on a combination of the voltage and current flowing in the motor coils and the motor load or braking torque.
		The speed of the motor is proportional to the voltage, and the torque is proportional to the current.
	en.wikipedia.org /wiki/Electric_motor (2632 words)

	2001 Publications
		Torque quality and comparison of internal and external rotor axial flux surface-magnet disc machines.
		Load torque estimation for spindle drives using structured neural network topologies.
		Presented at the 2001 IEEE International Conference on Electric Machines and Drives, June 17-20, 2001, Cambridge, MA, USA.
	www.wempec.wisc.edu /dlpub_2001.htm (2632 words)

	Lesson 6: What is Photovoltaics?
		Special electrical properties of the PV cell�a built-in electric field�provide the voltage needed to drive the current through an external load (such as a light bulb).
		Students will demonstrate the effect of solar energy on electrical output
		When the light or voltmeter is working correctly, experiment with each cover material (colored cellophane, screening, wax paper, glass or clear plastic) and record the effects of each material on the light or voltage output.
	www.montanagreenpower.com /solar/curriculum/lesson6.html (2632 words)

	G & W Electric Company - Application Guide Puffer Vacuum Interrupters
		For situations where the TCC coordination is very tight, the External Power is included to ensure that the controls will be continuously powered even if there is no load on the Vacuum Interrupter.
		In comparing the front-accessible gear to placing all equipment in vaults or basements, the front-accessible gear is significantly less expensive.
		The resettable Vacuum Interrupter means that fuses are no longer required when the PVI is used in place of most padmount equipment.
	www.gwelec.com /product_padmount/pviguide.cfm (4894 words)

	Common Mistakes Made in the Design of Aluminum Weldments Lincoln Electric
		Alloys that are extremely susceptible to hot cracking are not considered appropriate for structural (load-carrying) applications, and are generally put in the non-weldable category.
		Alloy 2219 is very easily weldable and has been extensively welded in fabricating the external tanks for the U.S. space shuttle.
		Alloys in this condition are said to be in the T4 temper and have significantly higher strengths than the same alloy in the O temper.
	www.lincolnelectric.com /knowledge/articles/content/comistakes.asp (2733 words)

	Railroad Glossary-A
		The base coefficient of friction between the wheel and the rail, are the determining factors and those factors are affected by the load on the wheel, wheel and rail condition and external factors such as oil, rust and weather.
		Diesel or electric locomotive wheel arrangement of two 3-axle trucks in which only the outer axles of each truck are powered.
		The amount of pulling or retarding force a wheel is capable of exerting on the rail without slipping or spinning.
	users.adelphia.net /~edportzline/Frames/TheProjectA.htm (1381 words)

	FAR Part 91
		(4) There must be means to allow the crew to check, in flight, the function of each fire detector electric circuit.
		These loads must be multiplied by a factor of 1.15 unless the dynamic effects of failure under static load are otherwise considered.
		In addition, there must be a visual means to signal to appropriate crewmembers when normally used external doors are closed and fully locked.
	www.safetydata.com /far-91.htm (1381 words)

	Solid Oxide Fuel Cell Animation
		This electrochemical reaction generates electrons, which flow from the anode to an external load and back to the cathode, a final step that both completes the circuit and supplies electric power.
		To increase voltage output, several fuel cells are stacked together to form the heart of a clean power generator.
		This diagram represents a functioning cell in a Solid Oxide Fuel Cell stack.
	mfnl.xjtu.edu.cn /gov-doe-netl/scng/seca/fuelcellani.html (1381 words)

	Electric motor - Wikipedia, the free encyclopedia
		A linear motor is essentially an electric motor that has been "unrolled" so that instead of producing a torque (rotation), it produces a linear force along its length by setting up a traveling electromagnetic field.
		Closely related in design to three-phase AC synchronous motors are stepper motors, where an internal rotor containing permanent magnets or a large iron core with salient poles is controlled by a set of external magnets that are switched electronically.
		All induction motors are characterized by the fact that when no load is applied to the motor, the rotor rotates at a slightly slower rate than the mains frequency (or an integer submultiple of the mains frequency).
	en.wikipedia.org /wiki/Electric_motor (1381 words)

	Model Rocket Engine
		Flying model rockets is a relatively safe and inexpensive way for students to learn the basics of forces and the response of vehicles to external forces.
		Liquid rockets tend to be heavier and more complex because of the pumps used to move the fuel and oxidizer, and you usually load the fuel and oxidizer into the rocket just before launch.
		An electric igniter is used to launch a model rocket engine.
	www.grc.nasa.gov /WWW/K-12/airplane/rktengine.html (729 words)

	Journal of Venomous Animals and Toxins - *Venom production by Africanized honeybees (Apis mellifera) and Africanized-European hybrids*
		Honeybee defensive behavior is affected by genetic composition (3,4,5,7,8,11,13,15) and modified by external factors such as smoke, pheromones or other volatile chemical substances, the presence or absence of other bees (12,19), and changes in the air electric load and environmental conditions (1,2,9,16,17).
		Genetics of the response of the honeybee to a chemical, isopentyl acetate.
		The stimuli releasing the stinging response of honeybees.
	www.scielo.br /scielo.php?script=sci_arttext&pid=S0104-79302001000200005&lng=en&nrm=iso&tlng=en (729 words)

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Topic: External electric load

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In the News (Sun 12 Oct 08)