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The article evaluates the VDG drum motor offered by VDG.

The article offers a review of VDG's innovative drum motors, emphasizing their role as efficient, compact, and energy-saving conveyor drive solutions for the mining and heavy equipment industries.

The article focuses on VDG Drum Motors as an efficient and energy-saving conveyor drive solution for the mining, aggregate, and heavy equipment industries. Topics include are the advantages of using VDG motors, the challenges of adjusting belt speed, and the development of an advanced drum motor design with an integrated VFD called the VDG Intelligent Drum Motor.

The article discusses the process of selecting motors for applications in motion control. It notes the need to consider shaft-bearing systems, commutation and motor windings in determining whether a specific motor will handle an intended application. It also highlights the importance of understanding where the intended operation point lies on the possible torque-versus-speed curves. INSETS: Example: Finding the winding for a fan motor;Selecting motor commutation and bearing systems ….

Presents factors to consider in planning electric generator upgrades. Includes features of stator and field rewinds; Reliability and efficiency gain from generator rewinds; Measuring generator uprate capability; Analysis of generator rewind approach at Southern Co.'s Georgia Power Corp. INSET: Record-setting rewind..

The aticle discusses VDG has the designer and manufacturer of high-efficiency drum motors to drive belt conveyors in the mining, aggregate and heavy equipment industries. Topics include on a standard electric motor, the rotor has to be magnetically induced by the stator; and the general approach to overcome issues has to substantially increase the dielectric strength value of the magnet wire used in the electric motor windings.

The article offers the author's calculation of thermal safety margins for servomotors in the U.S. He says that the margin is the difference between the winding maximum allowable thermal temperature and its maximum continuous winding temperature. He notes that most motor-system designers release the maximum peak torque of the motors to acquire high performance that leads to the rapid overheating of its windings. An overview of the process of sizing a competitor's motor is also presented.

The article presents the interview of President at VDG Alex Kanaris. Topics include the overall sales of VDG's drum motor products in the marketplace; the continuos redesigning of aggregate producers for the improved efficiency and reliability and VDG's new product, GrizzlyDrive with the patented IronGrip; and acceptance of drum motor use in states such as Texas, by Minnesota, and Utah.

The article offers a preview of the drum motor from VDG.

Provides strategies for cutting down electricity costs in plant operations to increase production efficiency. Factors to consider when rewinding motor systems; Cost of rewinding motors; Savings from replacing non-efficient electric motors rather than rewinding; Importance of determining the schedule of plant operations.

Derives an analytical expression for the cage rotor magnetomotive force (MMF) using the winding function approach. Equation for the MMF of symmetrical three-phase stator winding; Overview of the cage rotor MMF; MMF waves produced by the rotor currents.

Deals with generator rotor winding shorted turns. Benefit of the use of air-gap magnetic flux probes in the detection of generator shorted turns; Effects of shorted turns on a generator and its performance; Conditions that may result in running a rotor with shorted turns.

The article offers information on the T012 Pre-Stretched Film Rewinder to be exhibited by Unitech SRL of Italy at the National Plastics Exposition (NPE) 2018.

The article discusses the four key features which must be considered in the selection miniature coil supplier. Topics discussed include specialized technology and training required in the handling and assembling technology, the importance of the identification of a partner with a commitment in quality, and the need for the supplier to provide wire winding capability for the assurance of optimal performance.

The article discusses important facts that power plant operators should know when it comes to the safe use of current transformers. It says that even if the design of such transformers is similar with those that have parts for a primary winding, secondary winding and a magnetic core, their main function is for the secondary circuit to duplicate the primary circuit status efficiently. According to the author, most nuclear power plants use these transformers throughout the electrical system.

The article focuses on the advancement in power supplies to improve efficiencies. It says that the direct current (dc) power systems were evaluated by manufacturers to improve the efficiencies of their power usage for data centers. It adds that new digitally controlled power supplies, such as inductor windings were introduced by many companies for various applications. Moreover, efficiency standards for electric vehicles are also another area wherein high efficiency is important.

The article describes the use of two-channel audio amplifier to drive stepper motor. Each of the bipolar stepper motor's two windings need eight driving transistors connected in groups of four in an H-bridge configuration. Each transistor must withstand and recover from overloads and short-circuit conditions and a driver must consequently include complex and large discrete-component protective circuity. A motor-driven circuit based on surface-mount, 2.8W Class D audio amplifier is illustrated.

The article provides information on the T-Connection winding system for stepmotors developed by Lin Engineering. The system is designed to bridge the performance gap between series and parallel connections to optimize torque, minimize resonance and provide smooth motion at midrange speeds. It lowers current consumption by wiring two opposing windings in series. T-Connection also reduces stepmotor resonance and helps smooth motor response to create a smoother pan.

The article describes the development and implementation of a programmable-logic-device-based interface that can connect a personal computer's parallel port to as many as eight switches and four stepper motors. Each rotation of the two-winding stepper motors requires a sequence of four mechanical steps that one produce by applying a pair of long pulses to the motor's windings. The personal computer reads the busy, paper or select register to determine which of the switches is active.

The article discusses the two application note one by metal manufacturer Micrometals concerning simulation and modeling of toroidal windings, and another by American Microwave concerning PIN-diode parameters. It mentions that Micrometals produced an application note that discusses the simulation and modeling of toroidal windings at high frequencies. It further highlights application note by American Microwave, regarding PIN-diode parameters required to specify PIN diodes within a system.

Focuses on induction electric motors based on alternating current. Deployment of sensorless vector control technique in the motor to provide distinction between an inverter and vector drives; Problems associated with hard switching of electric motors; Examination of coil windings technology developed from a magnet wire.

Lists companies in the United States that manufacture coils. Armature; Choke, A.F.; Choke, power frequency; Coils, surface mount; Cooling or heating; Degaussing; Field; Pickup, proximity; Relay; Solenoid; Toroidal; Variable.

The article discusses the Back-Electromotiveforce (BEMF) technique to overcome limitations of traditional stall-detection methods of current and duty-cycle sensing. It has been stated that BEMF is directly proportional to angular velocity and according to Ohm's Law, lack of BEMF increases the potential current in a winding at a given voltage. Several figures associated with BEMF technique are also presented.

The article reports that the Advanced Magnet Lab will use funding from the U.S. Department of Energy to develop a direct-drive generator with superconducting wires in its windings for use in wind turbines. The article reports that the generator, which will be cryogenically cooled, will eliminate the need for a gearbox.

The article offers information on the linear shaft servomotor technology. It mentions the benefits of the technology and states that it consists of only a magnetic shaft and a forcer. It also mentions about the changes which have been incorporated in the technology with the adjustments in the windings. It compares the design of shaft motors from Nippon Pulse America Inc. It further mentions about the new motor L427 introduced by Nippon.

The article presents information related to micro motors. New micro brushless motors from Sanyo DC Micro Motor Division feature a ceramic air bearing that eliminates the need to lubricate oil. New MG16 series sub-miniature brush dc motors from Nidec Copal USA feature special higher torque metal planetary gear boxes. A new brushless dc motor from MicroMo Electronics Inc. provides high power-to-volume ratio by using a skewed winding.

Evaluates the N500 series high pressure spring rewind reels from Hannay Reels Inc. Information that it features spring motor with self-contained rewind power and four-way roller guide assembly.

Automobile manufactures are stuffing more motors into cars these days. A new design may help in freeing up some room. Hong Kong-based Johnson Electric SA has developed an asymmetrical lamination for DC brush motors that shortens a typical four-pole design by 18 mm, or about 18 percent. According to Elvio Bononi, the engineering manager of motor research, the asymmetrical laminations reduce the space needed for the windings at the armature ends. Among the new design's advantages are reduced thermal gradients, better heat dissipation, and increased flux density.

Presents a letter to the editor on use of silver for generator windings.

The article focuses on a study published by trade association on how rewinding affects the efficiency of electric motors. The new report, by the Electrical Apparatus Service Association Inc. in St. Louis, refutes the widely held notion that rewound motors are less efficient than new ones, said the group's technical support specialist, Thomas Bishop. Because as much as 97 percent of a motor's lifetime cost is in the electricity it consumes, the report makes a case for rewinding motors according to the highest industry standards.

Focuses on the construction of a prototype generator which could make wind power more practical for farms, isolated homes, and remote settlements in the third world. Who were the builders of this generator; Reference to David A. Torrey, an associate professor; Contact information.

Focuses on the on-site repair of the windings of a 630 MW generator at the Clauscentrale powerplant in the Netherlands. Mobile service equipment provided by Siemens AG; How the repair was carried out.

Reports on a new brochure `Failures in Three-Phase Stator Windings,' published by the Electrical Apparatus Service Association which shows close-up photographs of 12 typical reasons why three-phase stator windings fail.

The article evaluates an improved service-ability of a electric motor with the integration of a voltage-change switch into a molded plastic base plate. The motor was designed for pool and spa applications. The improvement of the motor solved the problem of burned out windings due to errors in wiring. The base plate was designed by GE Motors in Indiana.