lecture1424353332
... textbooks. The information presented here is merely a collection by the committee members for their respective teaching assignments. Various sources as mentioned at the end of the document as well as freely available material from internet were consulted for preparing this document. The ownership of ...
... textbooks. The information presented here is merely a collection by the committee members for their respective teaching assignments. Various sources as mentioned at the end of the document as well as freely available material from internet were consulted for preparing this document. The ownership of ...
An approach to sensorless operation of the
... A technique that monitors the third harmonic voltage to obtain the rotor angle has been developed in [2]. This technique is applicable to the brushless dc machine with trapezoidal back emf waveshape, but is of little relevance to the PMSM, which normally has a sinusoidal airgap flux distribution. In ...
... A technique that monitors the third harmonic voltage to obtain the rotor angle has been developed in [2]. This technique is applicable to the brushless dc machine with trapezoidal back emf waveshape, but is of little relevance to the PMSM, which normally has a sinusoidal airgap flux distribution. In ...
Design optimization of traction applications PL CN66
... a defined driving cycle with the aid of CEDRAT’s software suit (i.e. Flux, GOT-It and CEDRAT distribution engine - CDE) will be ...
... a defined driving cycle with the aid of CEDRAT’s software suit (i.e. Flux, GOT-It and CEDRAT distribution engine - CDE) will be ...
F1719
... A relay is an electrically operated switch. Many relays use on electro magnet to mechanically operate a switch , but other operating principles are also used ,such as solid state relays. Relays are used where it is necessary to control a circuit by a low power signal, or where several circuits must ...
... A relay is an electrically operated switch. Many relays use on electro magnet to mechanically operate a switch , but other operating principles are also used ,such as solid state relays. Relays are used where it is necessary to control a circuit by a low power signal, or where several circuits must ...
Microsoft Word - Rocky Mountain Power
... You may wish to consult a trained professional (electrician, engineer, etc.) prior to providing the information to your estimator. Commercial metering can have many restrictions that should be discussed with the estimator prior to the purchase and installation of your metering equipment. There are a ...
... You may wish to consult a trained professional (electrician, engineer, etc.) prior to providing the information to your estimator. Commercial metering can have many restrictions that should be discussed with the estimator prior to the purchase and installation of your metering equipment. There are a ...
Brushless Motors - PowerPoint Presentation (2.7MB PPT File)
... Io = Noload Current of the Motor, derived from running a motor WOT without a prop at varying voltages. Io can be expressed with an associated Voltage and should be. Kv = K value or voltage constant, the expressed value where the rpm can be surmised by a given voltage. For a 2000 Kv motor an input vo ...
... Io = Noload Current of the Motor, derived from running a motor WOT without a prop at varying voltages. Io can be expressed with an associated Voltage and should be. Kv = K value or voltage constant, the expressed value where the rpm can be surmised by a given voltage. For a 2000 Kv motor an input vo ...
Fairford Sizing Generators for Soft Starters
... As the soft starter operates, the motor and load will accelerate, the current will become less distorted and will increase in value towards a maximum at about two thirds speed before falling to the normal full‐speed load current. Depending on the ramp time, the peak current drawn w ...
... As the soft starter operates, the motor and load will accelerate, the current will become less distorted and will increase in value towards a maximum at about two thirds speed before falling to the normal full‐speed load current. Depending on the ramp time, the peak current drawn w ...
electricity generating dance floor by using rack & pinion mechanism
... electrically. Stepper motors are synchronous motors in which rotor’s positions depend directly on driving signal. Rotary moment is defined by magnetic energy and is proportional to the tooth number of the rotor. ...
... electrically. Stepper motors are synchronous motors in which rotor’s positions depend directly on driving signal. Rotary moment is defined by magnetic energy and is proportional to the tooth number of the rotor. ...
A lot thanks go to Head of Computer Department Dr. Luai Malhis
... The quad-copter is one of the most complex flying machines due to its versatility and maneuverability to perform many types of tasks. Classical quad-copters are usually equipped with a four rotors. Our specific project is concerned with the design and control of a miniature rotorcraft, known as a q ...
... The quad-copter is one of the most complex flying machines due to its versatility and maneuverability to perform many types of tasks. Classical quad-copters are usually equipped with a four rotors. Our specific project is concerned with the design and control of a miniature rotorcraft, known as a q ...
Bartłomiej Kamiński, Marcin Nikoniuk, Łukasz Drązikowski
... efficient energy transfer at very high power levels to the vehicle. Nevertheless, usage of energy transfer systems, which are based on physical contact in automated transit vehicles can make significant maintenance problems due to the presence of electrical arc and inherent contact wear. Live wires ...
... efficient energy transfer at very high power levels to the vehicle. Nevertheless, usage of energy transfer systems, which are based on physical contact in automated transit vehicles can make significant maintenance problems due to the presence of electrical arc and inherent contact wear. Live wires ...
Motor Efficiency and Power Factor
... Location of Capacitors (Cont’d) For motors that reverse, jog, etc., or where motor may at times be driven by the load (elevators, cranes), capacitors are connected on supply line side of motor controls with a separate switch. Adding excess capacitance can result in dangerous or damaging capacit ...
... Location of Capacitors (Cont’d) For motors that reverse, jog, etc., or where motor may at times be driven by the load (elevators, cranes), capacitors are connected on supply line side of motor controls with a separate switch. Adding excess capacitance can result in dangerous or damaging capacit ...
Submersible motor cable selection - E
... Cables consist of the active part – in today’s world almost always copper which conducts the electrical field and the current. The copper wire is insulated against neighboring conductors and the environment by different layers of electrically insulating materials, usually ...
... Cables consist of the active part – in today’s world almost always copper which conducts the electrical field and the current. The copper wire is insulated against neighboring conductors and the environment by different layers of electrically insulating materials, usually ...
Lab Exercise 6: Induction, Transformer, and Motor
... magnetic field (which results in the generation of current in the wire) has provided us with the means to reliably and consistently transform mechanical energy to electrical energy. This in turn has contributed to historic advancements in technology and dramatic changes in our way of life over the p ...
... magnetic field (which results in the generation of current in the wire) has provided us with the means to reliably and consistently transform mechanical energy to electrical energy. This in turn has contributed to historic advancements in technology and dramatic changes in our way of life over the p ...
What is magnetism?
... What are magnetic domains? Magnetic substances like iron, cobalt, and nickel are composed of small areas where the groups of atoms are aligned like the poles of a magnet. These regions are called domains. All of the domains of a magnetic substance tend to align themselves in the same direction when ...
... What are magnetic domains? Magnetic substances like iron, cobalt, and nickel are composed of small areas where the groups of atoms are aligned like the poles of a magnet. These regions are called domains. All of the domains of a magnetic substance tend to align themselves in the same direction when ...
Induction motor
An induction or asynchronous motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding. An induction motor therefore does not require mechanical commutation, separate-excitation or self-excitation for all or part of the energy transferred from stator to rotor, as in universal, DC and large synchronous motors. An induction motor's rotor can be either wound type or squirrel-cage type.Three-phase squirrel-cage induction motors are widely used in industrial drives because they are rugged, reliable and economical. Single-phase induction motors are used extensively for smaller loads, such as household appliances like fans. Although traditionally used in fixed-speed service, induction motors are increasingly being used with variable-frequency drives (VFDs) in variable-speed service. VFDs offer especially important energy savings opportunities for existing and prospective induction motors in variable-torque centrifugal fan, pump and compressor load applications. Squirrel cage induction motors are very widely used in both fixed-speed and variable-frequency drive (VFD) applications. Variable voltage and variable frequency drives are also used in variable-speed service.