IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
... One of the most important purposes for single-shunt three phase reconstructions is to reduce the cost. This, in turn, simplifies the sampling circuit to one shunt resistor and some other electronic components. Moreover, the single-shunt algorithm allows the use of power modules that do not provide, ...
... One of the most important purposes for single-shunt three phase reconstructions is to reduce the cost. This, in turn, simplifies the sampling circuit to one shunt resistor and some other electronic components. Moreover, the single-shunt algorithm allows the use of power modules that do not provide, ...
... Partial discharges (PD) are small electrical sparks that occur within the high voltage electrical insulation in stator windings. PD occurs whenever there are small voids in or on the surface of the insulation. Over 60 years’ experience has shown that as a stator winding deteriorates from winding vib ...
Industrial Maintenance Mechanics Blueprint
... Select and demonstrate appropriate use and care of various hand tools Select and demonstrate appropriate use and care of various power tools Demonstrate knowledge, use, and care of measuring tools Identify and safely use large machine tools, (i.e., lathes, mills, hoists, rigging equipment, presses) ...
... Select and demonstrate appropriate use and care of various hand tools Select and demonstrate appropriate use and care of various power tools Demonstrate knowledge, use, and care of measuring tools Identify and safely use large machine tools, (i.e., lathes, mills, hoists, rigging equipment, presses) ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... Simulation of Four Quadrant Operation of Sensor less BLDC Motor controls the motor's speed by varying the DC bus voltage. The difference between the required speed and the actual speed is input into the PI controller, which then modulates the duty cycle of the PWM based on the error signal obtained ...
... Simulation of Four Quadrant Operation of Sensor less BLDC Motor controls the motor's speed by varying the DC bus voltage. The difference between the required speed and the actual speed is input into the PI controller, which then modulates the duty cycle of the PWM based on the error signal obtained ...
Control Engineering 12/15
... connected to the ground than the motor housing. This is often the case when the motor equipped with a conductive clutch is mechanically connected to the particular application, and the motor housing has a lower earth connection. By using an SFA filter, voltages supplied by the inverter are corrected ...
... connected to the ground than the motor housing. This is often the case when the motor equipped with a conductive clutch is mechanically connected to the particular application, and the motor housing has a lower earth connection. By using an SFA filter, voltages supplied by the inverter are corrected ...
DESCRIPTION
... accessory mounting provisions of most DC motors. Both stub shaft and through shaft mountings are accommodated for motor frame sizes from 180 through 500. This space saving design eliminates the need for costly adapters and shaft couplings. It not only saves installation time but, more importantly, c ...
... accessory mounting provisions of most DC motors. Both stub shaft and through shaft mountings are accommodated for motor frame sizes from 180 through 500. This space saving design eliminates the need for costly adapters and shaft couplings. It not only saves installation time but, more importantly, c ...
Slide 1
... Software receives characters and based on which character it will perform the various functions (speed, brake, direction, and blade motor) Currently working on the path recording Error correction with compass and velocity records ...
... Software receives characters and based on which character it will perform the various functions (speed, brake, direction, and blade motor) Currently working on the path recording Error correction with compass and velocity records ...
robot_canarrange
... • The main task of the microcontroller system is to control the motors. It interprets the processors commands of going forward, backward, left or right. It controls the output pins that are connected to the H-Bridge module connected directly to the motors ...
... • The main task of the microcontroller system is to control the motors. It interprets the processors commands of going forward, backward, left or right. It controls the output pins that are connected to the H-Bridge module connected directly to the motors ...
Gyro precessing system
... product LC remains constant, the values of L and C may be varied inversely to achieve the proper phase shift ...
... product LC remains constant, the values of L and C may be varied inversely to achieve the proper phase shift ...
Electric Generators and Motors
... made that is powered by the induced current from a magnet moving through a coil of wire. The coil and magnet are inside a plastic tube that can be shaken causing the magnet to move back and forth through the coil. Assume the magnet has a maximum field strength of 0.05 T. Make reasonable assumptions ...
... made that is powered by the induced current from a magnet moving through a coil of wire. The coil and magnet are inside a plastic tube that can be shaken causing the magnet to move back and forth through the coil. Assume the magnet has a maximum field strength of 0.05 T. Make reasonable assumptions ...
9.3.3 Generators
... o It is mechanically spun in a generator, such as using steam to turn a turbine to rotate across the magnetic field Split-ring commutator: ring that changes direction of current o Changes force directions and therefore keeps motor spinning one direction Carbon brushes: conducts current in and out of ...
... o It is mechanically spun in a generator, such as using steam to turn a turbine to rotate across the magnetic field Split-ring commutator: ring that changes direction of current o Changes force directions and therefore keeps motor spinning one direction Carbon brushes: conducts current in and out of ...
question bank - SIETK ECE Dept
... (iii) The rotor current frequency when the motor runs at 600 r.p.m. 6. Explain the difference between slip ring and squirrel cage induction motor. 7. a) Explain the principle of operation of 3-phase induction motor ...
... (iii) The rotor current frequency when the motor runs at 600 r.p.m. 6. Explain the difference between slip ring and squirrel cage induction motor. 7. a) Explain the principle of operation of 3-phase induction motor ...
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.