Investigation of DC Motors for Electric and Hybrid Electric Motor
... designers identify which motors would be best suited for an EV powertrain application. The feasibility of using DC motors coupled with an Infinitely Variable Transmission (IVT), to obtain an innovative new electric or hybrid electric powertrain is also presented. The results of this research include ...
... designers identify which motors would be best suited for an EV powertrain application. The feasibility of using DC motors coupled with an Infinitely Variable Transmission (IVT), to obtain an innovative new electric or hybrid electric powertrain is also presented. The results of this research include ...
Motors and generators notes
... Describe the main components of a generator (6 marks) The generator is a device which converts mechanical kinetic energy into electrical energy. It consists of conducting coils which are in relative motion to a magnetic field. The coils may be part of the rotor, connected to an external circuit by a ...
... Describe the main components of a generator (6 marks) The generator is a device which converts mechanical kinetic energy into electrical energy. It consists of conducting coils which are in relative motion to a magnetic field. The coils may be part of the rotor, connected to an external circuit by a ...
2 Principles of dc machines
... rotation but not both. The voltage induced would be very low but the currents of very large amplitudes can be supplied by such machines. Such sources are used in some applications like pulse-current and MHD generators, liquid metal pumps or plasma rockets. The steady field can also be produced using ...
... rotation but not both. The voltage induced would be very low but the currents of very large amplitudes can be supplied by such machines. Such sources are used in some applications like pulse-current and MHD generators, liquid metal pumps or plasma rockets. The steady field can also be produced using ...
F046013443
... PM which decreases the reactive power compensation arrangement used in electrically excited generators and removes the slip rings, minimizing size and lowering cost of the system. Regarding electrically losses than PM excitation which increases with number of poles, although PM also has low losses b ...
... PM which decreases the reactive power compensation arrangement used in electrically excited generators and removes the slip rings, minimizing size and lowering cost of the system. Regarding electrically losses than PM excitation which increases with number of poles, although PM also has low losses b ...
Determination of Sound Speed in a Magnetic Fluid Using
... This paper describes the interferometric methodology for determining the speed of ultrasonic wave’s propagation in a magnetic fluid. The technique uses acoustomagnetic effect, which can be observed in a magnetized magnetic fluid, when elastic oscillations inside it. We describe the experimental setu ...
... This paper describes the interferometric methodology for determining the speed of ultrasonic wave’s propagation in a magnetic fluid. The technique uses acoustomagnetic effect, which can be observed in a magnetized magnetic fluid, when elastic oscillations inside it. We describe the experimental setu ...
RS-485 for Digital Motor Control Applications
... This discussion focuses on the benefits of using RS-485 signaling for motor control and motion control applications. As discussed below, this technology has several benefits for these applications in terms of noise immunity, wide common-mode voltage range, adequate data rate, and multipoint capabili ...
... This discussion focuses on the benefits of using RS-485 signaling for motor control and motion control applications. As discussed below, this technology has several benefits for these applications in terms of noise immunity, wide common-mode voltage range, adequate data rate, and multipoint capabili ...
Versa-Pac as Forward Converter
... greater than 50% duty cycle. Figure 3 shows a reset method for a dual switch topology, this method allows the primary winding to operate in flyback mode with the current flowing through the two recovery diodes. This technique is similar to that shown in figure 1, the advantages of this topology incl ...
... greater than 50% duty cycle. Figure 3 shows a reset method for a dual switch topology, this method allows the primary winding to operate in flyback mode with the current flowing through the two recovery diodes. This technique is similar to that shown in figure 1, the advantages of this topology incl ...
Modeling Current Transformer (CT) Saturation for Detailed
... Jiles and Atherton and commonly referred to as the ‘Jiles-Atherton theory of Ferromagnetic hysteresis.’ These developed models have been extensively tested with field recordings in collaborations with CT, relay and protection equipment vendors. This case is used to illustrate the effects of CT sat ...
... Jiles and Atherton and commonly referred to as the ‘Jiles-Atherton theory of Ferromagnetic hysteresis.’ These developed models have been extensively tested with field recordings in collaborations with CT, relay and protection equipment vendors. This case is used to illustrate the effects of CT sat ...
Chapter 22: Electric motors and electromagnetic induction
... (But note that if the maximum design current for a motor is exceeded then the motor is likely to burn out.) ...
... (But note that if the maximum design current for a motor is exceeded then the motor is likely to burn out.) ...
July 2010
... The armature of 8 pole, 3-phase,50 Hz alternator has 17 slots and has 10 conductors per slot. There are 0.04 Wb entering the armature from 1 pole.Assume the flux to be distributed sinusoidal along the air gap. Calculate the induced EMF per Phase. ...
... The armature of 8 pole, 3-phase,50 Hz alternator has 17 slots and has 10 conductors per slot. There are 0.04 Wb entering the armature from 1 pole.Assume the flux to be distributed sinusoidal along the air gap. Calculate the induced EMF per Phase. ...
AN2446
... All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and service ...
... All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and service ...
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.