meeid 103 dynamics of electrical machines
... 1. (a) Show that the magnitude of the speed voltages is maximum when the moving coil is magnetically at right angles to the other coil and magnitude of transformer voltage is maximum when the coils are aligned magnetically along the axis. ...
... 1. (a) Show that the magnitude of the speed voltages is maximum when the moving coil is magnetically at right angles to the other coil and magnitude of transformer voltage is maximum when the coils are aligned magnetically along the axis. ...
2011/12 - CSM2044 - Electrical Energy Conversion and Transport
... an magnetic material, Determining the relative permeability, Faraday’s law of electromagnetic induction, Voltage induced in a conductor, Lorentz force on a conductor, Direction of the force acting on a straight conductor, Residual flux density and coercive force, Hysteresis loop, Hysteresis loss, Hy ...
... an magnetic material, Determining the relative permeability, Faraday’s law of electromagnetic induction, Voltage induced in a conductor, Lorentz force on a conductor, Direction of the force acting on a straight conductor, Residual flux density and coercive force, Hysteresis loop, Hysteresis loss, Hy ...
Electrical_Machines_Lab_Upgrading_Proposal_Fall_2009
... squirrel cage rotors) single and three phases machines, Permanent Magnet brushless DC motor, DC motor with brushes, couplings, connectors, DC power supplies and single and 3-Phase power supplies to drive the motors. Load torque, three phase Resistive, Inductive, and Capacitive loads. AC and DC curre ...
... squirrel cage rotors) single and three phases machines, Permanent Magnet brushless DC motor, DC motor with brushes, couplings, connectors, DC power supplies and single and 3-Phase power supplies to drive the motors. Load torque, three phase Resistive, Inductive, and Capacitive loads. AC and DC curre ...
Micromouse Lecture #2 Power Motors Encoders
... Reverse the polarity of the input voltage -> Reverse the rotation Most digital microcontrollers do not have an analog signal output MCU’s output digital signals – either high or low How do we control brushed motors? ...
... Reverse the polarity of the input voltage -> Reverse the rotation Most digital microcontrollers do not have an analog signal output MCU’s output digital signals – either high or low How do we control brushed motors? ...
ELECTRIC MOTORS
... DC STEPPER MOTORS • Stepping motors are electric motors without commutators • Commutation is handled externally by the motor controller • Controller charges opposite coils attracting the center rotor magnets ...
... DC STEPPER MOTORS • Stepping motors are electric motors without commutators • Commutation is handled externally by the motor controller • Controller charges opposite coils attracting the center rotor magnets ...
Presentation by Yongguo
... V = iR + Ldi/dt + Vemf T = Kti Vemf = Ktω T– torque ω– angular velocity Kt – torque constant P=V*i Convenient, but enough? ...
... V = iR + Ldi/dt + Vemf T = Kti Vemf = Ktω T– torque ω– angular velocity Kt – torque constant P=V*i Convenient, but enough? ...
Induction motor control
... For the firing angle , the motor terminal voltage remains constant and nearly equal to the supply voltage. Both motor voltage and current are sinusoidal. For higher values of firing angle , the current flows discontinuously and the motor voltage decreases with an increase in .The zero motor vo ...
... For the firing angle , the motor terminal voltage remains constant and nearly equal to the supply voltage. Both motor voltage and current are sinusoidal. For higher values of firing angle , the current flows discontinuously and the motor voltage decreases with an increase in .The zero motor vo ...
1. Explain the constructional details of Alternator in detail with neat
... Low and medium-speed alternators (120-400 r.p.m.) such as those driven by diesel engines or water turbines have salient pole type rotors due to the following reasons: (a) The salient field poles would cause an excessive windage loss if driven at high speed and would tend to produce noise. (b) Salien ...
... Low and medium-speed alternators (120-400 r.p.m.) such as those driven by diesel engines or water turbines have salient pole type rotors due to the following reasons: (a) The salient field poles would cause an excessive windage loss if driven at high speed and would tend to produce noise. (b) Salien ...
Electric Motors
... cobalt). This magnetic effect comes from a special alignment of the atomic structure of the material. All magnets have two poles, a north pole and a south pole. It is impossible to have a singular magnetic pole; they always come in pairs. Magnets follow the rule that opposite poles attract and like ...
... cobalt). This magnetic effect comes from a special alignment of the atomic structure of the material. All magnets have two poles, a north pole and a south pole. It is impossible to have a singular magnetic pole; they always come in pairs. Magnets follow the rule that opposite poles attract and like ...
Series MS Synchronous motors
... Synchronous motors are preferred for standard applications when a reduced reactive power absorption is required. These machines generate lower operating costs and yield higher efficiencies than squirrel cage induction machines. Designed to meet specific application needs on a job by job basis, these ...
... Synchronous motors are preferred for standard applications when a reduced reactive power absorption is required. These machines generate lower operating costs and yield higher efficiencies than squirrel cage induction machines. Designed to meet specific application needs on a job by job basis, these ...
2A. Two similar inductive coils with negligible resistance are wound
... The field winding of a motor has a resistance of 500 Ω at 150C. By how much will the resistance increase if the motor attains a temperature of 450C, when it is running? The winding is made of copper and its temperature coefficient of resistance at 00C is 0.00428/0C. ...
... The field winding of a motor has a resistance of 500 Ω at 150C. By how much will the resistance increase if the motor attains a temperature of 450C, when it is running? The winding is made of copper and its temperature coefficient of resistance at 00C is 0.00428/0C. ...
Lecture 7
... Synchronous generators are used to produce nearly all the electric power produced in the world ...
... Synchronous generators are used to produce nearly all the electric power produced in the world ...
Synchronous Generators
... In the picture above, we have in fact managed to build what is called a 2-pole permanent magnet synchronous motor. The reason why it is called a synchronous motor, is that the magnet in the centre will rotate at a constant speed which is synchronous with (running exactly like the cycle in) the rotat ...
... In the picture above, we have in fact managed to build what is called a 2-pole permanent magnet synchronous motor. The reason why it is called a synchronous motor, is that the magnet in the centre will rotate at a constant speed which is synchronous with (running exactly like the cycle in) the rotat ...
Application of VFDs on Airxchange Wheels
... Application Recommendations for use with Airxchange Supplied VFD motors ...
... Application Recommendations for use with Airxchange Supplied VFD motors ...
Motor-Generator Sets
... usually unit-mounted but can also be free-standing or wall-mounted. The panel will include the motor starter, output circuit breaker, metering, protective relaying, voltage regulator and any other required components. ENCLOSURE: An open drip-proof enclosure for rotating parts is standard with oth ...
... usually unit-mounted but can also be free-standing or wall-mounted. The panel will include the motor starter, output circuit breaker, metering, protective relaying, voltage regulator and any other required components. ENCLOSURE: An open drip-proof enclosure for rotating parts is standard with oth ...
AC motor
An AC motor is an electric motor driven by an alternating current (AC). The AC motor commonly consists of two basic parts, an outside stationary stator having coils supplied with alternating current to produce a rotating magnetic field, and an inside rotor attached to the output shaft producing a second rotating magnetic field. The rotor magnetic field may be produced by permanent magnets, reluctance saliency, or DC or AC electrical windings.Less commonly, linear AC motors operate on similar principles as rotating motors but have their stationary and moving parts arranged in a straight line configuration, producing linear motion instead of rotation.