structure of the program
... Building of the equivalent circuit of the transformer in the form of a complete polygon (that respects both resistances and inductances of particular windings). Investigation of steady-state operation regimes using the equivalent circuit. Solution of the 2D electric field distribution in the window. ...
... Building of the equivalent circuit of the transformer in the form of a complete polygon (that respects both resistances and inductances of particular windings). Investigation of steady-state operation regimes using the equivalent circuit. Solution of the 2D electric field distribution in the window. ...
Electricity and Magnetism
... factors of hundreds or thousands) the magnetic field of a current-carrying wire that has been wrapped around the magnet; when the current increases, so does the field of the "soft" magnet, which is much larger than the field due to the current. Permanent magnets occur naturally in some rocks, partic ...
... factors of hundreds or thousands) the magnetic field of a current-carrying wire that has been wrapped around the magnet; when the current increases, so does the field of the "soft" magnet, which is much larger than the field due to the current. Permanent magnets occur naturally in some rocks, partic ...
Buletin Stiintific - UPB - Seria C - numar 2 - 2006
... The present paper discusses the numerical analysis of the magnetic field in a cross-section of a permanent magnet synchronous machine (PMSM), achieved through the finite elements method. In the case of such machines, the attraction forces, developed between the permanent magnets on an armature and t ...
... The present paper discusses the numerical analysis of the magnetic field in a cross-section of a permanent magnet synchronous machine (PMSM), achieved through the finite elements method. In the case of such machines, the attraction forces, developed between the permanent magnets on an armature and t ...
Project Proposal Presentation (12/09/03)
... 2.) Backwards Coast with No Propulsion 3.) Stop 4.) Forwards Coast with No Propulsion 5.) Closed Loop Forwards Velocity Input with Control 6.) Open Loop Forwards Current Input Mode of ...
... 2.) Backwards Coast with No Propulsion 3.) Stop 4.) Forwards Coast with No Propulsion 5.) Closed Loop Forwards Velocity Input with Control 6.) Open Loop Forwards Current Input Mode of ...
Slide 1
... Data from the wind sensor network is imported into LabVIEW through a receiving node and USB. This data is used to control the motor speed which is coupled to the turbine. Data from voltage and current sensors is imported into this interface through a NI-6008-USB and DAQ Assist software. These measur ...
... Data from the wind sensor network is imported into LabVIEW through a receiving node and USB. This data is used to control the motor speed which is coupled to the turbine. Data from voltage and current sensors is imported into this interface through a NI-6008-USB and DAQ Assist software. These measur ...
International Electrical Engineering Journal (IEEJ) Vol. 5 (2014) No.12, pp. 1680-1687
... sequence of excitation of stator phases determines the direction in which the rotor will rotate. To achieve continuous rotation, the stator phase currents are switched ‘on’ and ‘off’ in each phase in a sequence manner. The successive movement of three phases, 6/4 SRM is shown in Fig. 1. The synchron ...
... sequence of excitation of stator phases determines the direction in which the rotor will rotate. To achieve continuous rotation, the stator phase currents are switched ‘on’ and ‘off’ in each phase in a sequence manner. The successive movement of three phases, 6/4 SRM is shown in Fig. 1. The synchron ...
syllbus DC_machines350
... power losses in ferromagnetic materials, faraday’s law-induced voltage from a time changing, production of induced force on a wire, induced voltage on a conductor moving in a magnetic field Transformers, types and constructions, single-phase ideal transformer, power calculation, reflected impedance, ...
... power losses in ferromagnetic materials, faraday’s law-induced voltage from a time changing, production of induced force on a wire, induced voltage on a conductor moving in a magnetic field Transformers, types and constructions, single-phase ideal transformer, power calculation, reflected impedance, ...
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.