Citations with the tag: ELECTRIC motors
Results 51 - 100
- Look at your motors' lubricant.
Kilbane, Patrick // EC&M Electrical Construction & Maintenance; Aug98, Vol. 97 Issue 9, p74
Discusses the importance of having a ferrography program to protect electric motors. Classification of wear particles from magnetic and nonmagnetic substances; Images of ferrographic categories; Advances in ferrography technology.
- Test your motor control IQ.
Baran, Larry // EC&M Electrical Construction & Maintenance; Aug98, Vol. 97 Issue 9, p80
Presents the electric resistance readings for a power and control wiring of an electric motor. Value of the contact, fuse and wire resistance.
- Selecting torque for top motor efficiency.
Lawrie, Robert J. // EC&M Electrical Construction & Maintenance; Jan1999, Vol. 98 Issue 1, p44
Explains the concept of torque and its influence on electric motor efficiency. Motor ratings and nameplates; Cost differentials; Guidelines for torque selection.
- Test your motor control IQ.
Baran, Larry // EC&M Electrical Construction & Maintenance; Jan1999, Vol. 98 Issue 1, p48
Presents a quiz that tests one's ability to anticipate resistance readings during troubleshooting of an electric-motor starter.
- Does your motor have enough get-up-and-go?
Lawrie, Robert J. // EC&M Electrical Construction & Maintenance; May99, Vol. 98 Issue 5, p88
Discusses the energy-efficient motors. Deficiencies of motors; Torque problems; Higher starting currents; Lower power factor; Cost-effectiveness. INSETS: EPACT and NEMA influence on motors;NEC changes regarding motors.
- Mounting a dry-type transformer.
Bartling, Bruce // EC&M Electrical Construction & Maintenance; Aug99, Vol. 98 Issue 9, p48J
Discusses tips for mounting a dry-type transformer. Codes and standards for transformers; Tips for trouble-free transformers; Checking of transformer's mounting holes. INSETS: Shaking all over.;Seismic requirements..
- Test your motor control IQ.
Baran, Larry // EC&M Electrical Construction & Maintenance; Aug99, Vol. 98 Issue 9, p58
Presents answers to questions related to motor starter control. Schematic wiring diagram of an across-the-line starter with delayed motor-off feature.
- The basic of 3-phase transformers--part 2.
Frank, Paul // EC&M Electrical Construction & Maintenance; Aug99, Vol. 98 Issue 9, p76
Part II. Focuses on the basics of three-phase transformers. Wye-to-delta and delta-to-wye arrangements; Calculation of output voltage.
- Testing Contact Quality on Live Motor Starters.
DeDad, John A. // EC&M Electrical Construction & Maintenance; Dec2000, Vol. 99 Issue 13, p48
Describes a millivolt testing technique that provides a basic check in troubleshooting motor breakdown situations. Lessons to maintenance electricians; Ohm's law; Testing contact quality on live motor starters; Example.
- The Basics of Delta-Wye Transformers.
Sankaran, C. // EC&M Electrical Construction & Maintenance; Dec2000, Vol. 99 Issue 13, p68
Describes the basics of delta-wye transformers. Dry-type and liquid-filled transformers; Core and winding characteristics; Harmonics.
- Test Your Motor Control IQ.
Baran, Larry // EC&M Electrical Construction & Maintenance; Apr2001, Vol. 100 Issue 4, p98
Presents a quiz on electric motors. Configuration of a one-shot motor starter circuit; Integrity of electric switches and wiring; Component resistance values that are included in the calculations.
- Motor Control FAQs.
Lukitsch, Walter // EC&M Electrical Construction & Maintenance; Oct2002, Vol. 101 Issue 10, p16
Presents a question and answer advisory on motor control. Components of push button; Methods in motor starting; Procedure in connecting control voltage.
- An earlier triumph.
Geoff Chamberlain. Aldershot, Richard // Engineer (00137758); 1/23/2004, Vol. 293 Issue 7643, p21
Presents a letter to the editor about the putting an electric motor in each corner of a car.
- Horsepower of a different color.
Gould, R. // Hydraulics & Pneumatics (1996); Jan2000, Vol. 53 Issue 1, p59
Cites design rules for hydraulic power units for mobile equipment. Sizing an electric motor for a hydraulic power unit; Pump torque requirements; Electric motor torque signature; Torque behavior of engines.
- Brush up on brushless motors.
Cawley Jr., Bernard // Model Airplane News; Aug96, Vol. 124 Issue 8, p90
Features electric motors for model airplanes. Specifications; Tests.
- Webra Silverline .61.
Gierke, Dave // Model Airplane News; Aug96, Vol. 124 Issue 8, p98
Features an electric motor for model airplanes called Webra Silverline .61. Specifications; Construction; Break-in and performance. INSET: Arise 4-stroke muffler..
- The quiet revolution, part 2.
Marshall, Larry // Model Airplane News; Aug97, Vol. 125 Issue 8, p8
Editorial. Comments on electric-powered model aircraft, with reference to Bob Boucher's revolution in electric flyers. Perceptions on electric power systems; Views on the improvement of electric flight; Discussion on the first Florida jets show.
- Electrics are different.
Marshall, Larry // Model Airplane News; Jan98, Vol. 126 Issue 1, p120
Focuses on electrics in relation to airplanes and flying of electric airplanes. Comparison of electrical and gasoline engines; Reference to the flying time when using electrics in airplanes; Expense of electrics in relation to the flying of airplanes.
- Selecting a motor.
Marshall, Larry // Model Airplane News; Jul98, Vol. 126 Issue 7, p76
Suggests how to select an electric motor for the Hangar 9 Cub remote control model airplane. Factors to consider when choosing the motor; How mathematics can influences choosing a motor; Information on some electric devices available for model planes. INSET: Electrics in any size.
- Slow-flyin' wespe fun.
Randolph, Randy // Model Airplane News; Sep98, Vol. 126 Issue 9, p56
Presents information on the Wespe, an electric-powered airplane which was designed to fly slow. Weight of the plane; What is the plane's top speed; Information on when the slow-flight movement was started; Details on Clancy Aviation. INSET: Specifications.
- Engine-mount basics.
Wilson Jr., George // Model Airplane News; Mar99, Vol. 127 Issue 3, p76
Focuses on the use electric motor mounts for constructing airplane models. Descriptions of the different types; Isolation of the vibration caused by engine and propeller; Preference for the use of beam mounts with shear plates.
- Innovative motor lets low-cost simulators rock and roll.
Wilson Jr., George // Machine Design; 9/26/94, Vol. 66 Issue 18, p26
Reports on Denne Developments Ltd.'s development of an electric motor called Pemram, or pneumatic electromagnetic ram. Combination of fast and precise positioning with the force of fluid power; Features and functions; Design; Specifications.
- Snake-oil specs spell trouble for motor sizing.
Fleisher, William A.; Gyorki, John R. // Machine Design; 06/04/98, Vol. 70 Issue 10, p85
Details a procedure for studying all manufacturers' direct current (DC) motor parameters to ensure a robust motor-control system. Pertinent parameters; First-rate motors; Tolerating the fit; Understanding the temperature rise per watt.
- All loads look the same to a motor's output shaft.
Fleisher, William A.; Gyorki, John R. // Machine Design; 06/03/99, Vol. 71 Issue 11, p136
Focuses on the mechanical modeling of motor output shafts drive rotary-type loads. How speed reducers reduced loads reflected to a motor output shaft; Methods to couple rotary motion to linear loads.
- Miniature stepper has maximum power.
Higgins, Amy // Machine Design; 09/21/2000, Vol. 72 Issue 18, p78
Focuses on the mini stepping motor developed by Micro Mo Electronics Inc. Features and capabilities of the product.
- Eclectic electric.
Gibbs, Jerry // Outdoor Life; May96, Vol. 197 Issue 5, p84
Presents information on selected electric motors. Minn Kota Riptide Auto Pilot; Minn Kota's Ex Extreme; Great White Lazer.
- Motor maintenance: Windings and insulation.
Benson, Jim // CEE News; Jul98, Vol. 50 Issue 8, p18
Discusses practical methods for inspecting and testing motor windings and insulation. Guidelines in opening a motor for repair; Testing equipment used.
- Big savings from electric motor efficiency.
Benson, Jim // Manufacturers' Monthly; Sep2003, p36
Focuses on saving from electric motor efficiency in manufacturing plants. Tips on selecting a motor; Maintenance of motors. INSET: BEHIND THE COVER.
- All about system voltage.
Simon, Neil // Air Conditioning Heating & Refrigeration News; 3/28/94, Vol. 191 Issue 13, p24
Discusses the standards of system voltages on electrical motors. Standard voltage of single-phase electrical systems in the United States; Common standards for three-phase systems; Matching motor and system voltages; Determining the compatibility of a motor and system.
- Slotless design yields high efficiency.
Jancsurak, Joe // Appliance Manufacturer; Oct95, Vol. 43 Issue 10, p24
Focuses on brushless direct current motors. Shortcomings of conventional motor designs that rely on slotted stators and laminations; Use of smooth and slotless winding-return paths; Neodyne Corp.'s selling of prototype motors based on inventor Emil Mihalko's technology.
- SMMA fall meeting update.
Jancsurak, Joe // Appliance Manufacturer; Sep96, Vol. 44 Issue 9, p27
Provides information on the fall meeting of SMMA, The Association for Electric Motors, Their Control and Application, scheduled on October 23-25, 1996.
- High-efficiency fan-motors for refrigerators.
Baker, Gerry N. // Appliance Manufacturer; May97, Vol. 45 Issue 5, p87
Introduces the application of brushless permanent magnet (BPM) motor to reduce electrical consummations of refrigerators. Features of BPM; Importance of the development of integral fan blades for improving the efficiency of BPM motor technology; Power factor of BPM condenser and evaporator; The...
- Conference details motor manufacturing advances.
Jancsurak, Joe // Appliance Manufacturer; Jul98, Vol. 46 Issue 7, p34
Focuses on topics discussed at the second biennial Motor Manufacturing Conference held in Dayton, Ohio on May 1998. Presence of 150 motors engineers and managers in the seminar program; Identification of employees' training as lubricants for continuous improvement; Definition of customer...
- Induction motors.
Jancsurak, Joe // Design Engineering; May96, p11
Focuses on the development of a new steel to improve the performance of a range of induction motors by more than three percent. Description; Permeability.
- Cleaning a path for SR drives.
WILSON, DAVE // Design Engineering; Dec98, p41
Discusses switched reluctance (SR) motor technology. Components of SR drives; Basis of the techniques in designing an SR drive; Future applications of SR drives.
- ABB wins on efficiency.
WILSON, DAVE // Design Engineering; Apr99, p13
Reports that ABB Motors won the International Energy Agency's 1999 Hi-Motors Competition for its highly efficient electric motors.
- Got a new motor.
WILSON, DAVE // Design Engineering; Jul2001, p15
Focuses on a motor called Motorformer from British company ABB. Advantages of a motor that can be connected directly to high-voltage grid transformers; Features of Motorformer's stator; Problems associated with starting an electric motor for a heavy-duty application; Benefits of a high voltage...
- WEG's efficient motors live long and prosper too.
WILSON, DAVE // Design Engineering; Jul2002, p22
Introduces the W21 electric motor from WEG. Features; Applicability; Availability.
- AEG eff1 motors.
WILSON, DAVE // Design Engineering; Jul2002, p22
Introduces AMHE eff1 motor to reduce carbon dioxide emissions from AEG.
- A Priority Energy Management Strategy.
Fetters, John // Energy User News; Nov2002, Vol. 27 Issue 11, p10
Reports on advantages of upgrading electric motors in making them energy efficient. Methods of measuring the efficiency of motors; Benefits of upgrading electric motors; Objectives of the motor challenge program that was administered by the U.S. Department of Energy's Office of Industrial...
- Rightsize your electric motors.
Bishop, Thomas P. // Motion System Hydraulics & Pneumatics; May2003, Vol. 56 Issue 5, p41
Provides strategies on how to match the type of electric motor with hydraulic pump. Ensurance of pump motor operation at peak continuous load; Calculation of the actual load required; Documentation of the nameplate current.
- Motor management.
Zimmerman, Steve // Pit & Quarry; May97, Vol. 89 Issue 11, p40
Offers advice on the management of electrical motors. Causes of motor failure; Advances in motor management technology; Factors to consider in determining the right level of management for a particular application.
Zimmerman, Steve // Energy User News; Jun98, Vol. 23 Issue 6, p32
Presents a listing of manufacturers of electric motors. Names of these manufacturers; Technical specifications of the motors; Features of these motors.
- Motors: A glossary of terms.
SIMON, NEIL // Air Conditioning Heating & Refrigeration News; 01/25/99, Vol. 206 Issue 4, p105
Defines terms to help people with their electric motor knowledge. Ambient temperature; Axial load; Breakdown torque.
- Motor doctor talks torque talk.
SIMON, NEIL // Air Conditioning Heating & Refrigeration News; 01/25/99, Vol. 206 Issue 4, p108
Provides information on torque, which is used to describe the output of an electric motor. How to calculate a motor's horsepower using torque; Four parts of the torque speed curve.
- Determining DC motor rotation direction.
DeDad, John A. // EC&M Electrical Construction & Maintenance; Aug96, Vol. 95 Issue 8, p36
Offers tips on how to properly determine direct current (DC) motor rotation direction. Variety of methods in connecting a DC compound motor; Provision of a more constant speed at all loads; Labeling of DC motor terminals for easy identification; Reversing direction by reversing field leads;...
- The case for solar-powered ELECTRIC Tractors.
DeDad, John A. // Mother Earth News; Apr/May2002, Issue 191, p106
Focuses on the advantages of solar-powered electric tractors in the U.S. Efficiency of electric motors; Elimination of internal combustion engine, transmission and differential; Inclusion of separate power-take-off motor.
- Induction motor...
DeDad, John A. // Power; Jul95, Vol. 139 Issue 7, p64
Features the induction motor for constant speed applications from ABB Industrial Systems Inc.
- STARTING anew.
Jacobson, Marcus // Automotive Engineer; Sep98, Vol. 23 Issue 8, p49
No abstract available.
- Electric motors provide pump power.
Childs, C. // Hydraulics & Pneumatics (1996); Aug98, Vol. 51 Issue 8, p53
States that a hydraulic power unit can have the best pump for the application, but if you do not specify the right motor, your design could be ineffective. Problems that arise when specifying an electric motor to drive a hydraulic pump; What should be considered when selecting these motors;...