Sérgio CRUZ 1,2 , Flávio GASPAR 2
... When the inertia of the load is very high, the speed oscillations of the motor will be very small, and that ellipse will tend to a circumference. On the other hand, for extremely low values of the inertia, the ellipse tends to degenerate into a straight line oriented along the second quadrant of th ...
... When the inertia of the load is very high, the speed oscillations of the motor will be very small, and that ellipse will tend to a circumference. On the other hand, for extremely low values of the inertia, the ellipse tends to degenerate into a straight line oriented along the second quadrant of th ...
LS7290 - LSI CSI
... The LS7290 contains a mode controlled look-up table for generating the motor duty cycle drive sequences. There are four outputs which are used to drive two H-Bridges for the two motor windings (Refer to Table 1). The LS7290 can step a motor in full steps, half steps or in 1/4, 1/8, 1/16 or 1/32 micr ...
... The LS7290 contains a mode controlled look-up table for generating the motor duty cycle drive sequences. There are four outputs which are used to drive two H-Bridges for the two motor windings (Refer to Table 1). The LS7290 can step a motor in full steps, half steps or in 1/4, 1/8, 1/16 or 1/32 micr ...
I PN = 500 … 2500 A Current Transducer HAX 500 … 2500-S
... Variation of the offset during the test IEC 61000-4-3 between 100 to 200 MHz: 8 % of ISN. ...
... Variation of the offset during the test IEC 61000-4-3 between 100 to 200 MHz: 8 % of ISN. ...
EL23829834
... three-phase drive system composed of two parallel single-phase rectifiers, a three-phase inverter, and an induction motor. The proposed topology permits to reduce the rectifier switch currents, the harmonic distortion at the input converter side, and presents improvements on the fault tolerance char ...
... three-phase drive system composed of two parallel single-phase rectifiers, a three-phase inverter, and an induction motor. The proposed topology permits to reduce the rectifier switch currents, the harmonic distortion at the input converter side, and presents improvements on the fault tolerance char ...
A General Approach for Brushed DC Machines Simulation Using a
... Figure 1. Global circuit representation of a 4 wound field poles and 4 brushes DC motor; relevant parameters of the armature winding. The positions of brushes on the commutator determine the electrical behavior of armature sections. It is possible to know, for each mechanical position of the rotor, ...
... Figure 1. Global circuit representation of a 4 wound field poles and 4 brushes DC motor; relevant parameters of the armature winding. The positions of brushes on the commutator determine the electrical behavior of armature sections. It is possible to know, for each mechanical position of the rotor, ...
Model 348 Universal Voltage Regulator
... connected between terminals EXT1 and EXT2. Before connecting the remote rheostat, follow all of the steps above for installation and adjustment. The rheostat should be wired so that its resistance decreases with clockwise rotation. See illustration. Perform output voltage adjustment as follows: 1. S ...
... connected between terminals EXT1 and EXT2. Before connecting the remote rheostat, follow all of the steps above for installation and adjustment. The rheostat should be wired so that its resistance decreases with clockwise rotation. See illustration. Perform output voltage adjustment as follows: 1. S ...
Electric Reliability Troubleshooting Guide
... Install power conditioner/UPS Install surge protection Improve grounding, use optical isolator for data links ...
... Install power conditioner/UPS Install surge protection Improve grounding, use optical isolator for data links ...
CBSE/12th Class/2010/PHYSICS S.No Questions Answers
... AC generator consists of the four main parts: (i) Field Magnet: It produces the magnetic field. In the case of a low power dynamo, the magnetic field is generated by a permanent magnet, while in the case of large power dynamo, the magnetic field is produced by an electromagnet. (ii) Armature: It con ...
... AC generator consists of the four main parts: (i) Field Magnet: It produces the magnetic field. In the case of a low power dynamo, the magnetic field is generated by a permanent magnet, while in the case of large power dynamo, the magnetic field is produced by an electromagnet. (ii) Armature: It con ...
26 24 19 Motor Control Centers
... 9. Individual control power transformers for all starters, capacity as required for all control circuit devices, 100 VA minimum, Class A insulation, two primary fuses, 120-volt secondary, one secondary fuse, and the other secondary leg grounded. NTS: Modify paragraphs “10” through “22”, below, to su ...
... 9. Individual control power transformers for all starters, capacity as required for all control circuit devices, 100 VA minimum, Class A insulation, two primary fuses, 120-volt secondary, one secondary fuse, and the other secondary leg grounded. NTS: Modify paragraphs “10” through “22”, below, to su ...
IMPULSE ® •VG+ Series 3 Theory of Operation IMPULSE ® Drive
... tells the motor what to do, then checks to see if it did it, then changes its command to correct for any error.” ...
... tells the motor what to do, then checks to see if it did it, then changes its command to correct for any error.” ...
4 Set-up - FabLab Web
... The series TRM amplifiers are four-quadrant power amplifiers for permanent-field DC motors, that means that acceleration and braking is possible in both directions. To enable this, a 2.2-fold or triple continuous current is available for a certain time (about 2.5 seconds) depending on the version. F ...
... The series TRM amplifiers are four-quadrant power amplifiers for permanent-field DC motors, that means that acceleration and braking is possible in both directions. To enable this, a 2.2-fold or triple continuous current is available for a certain time (about 2.5 seconds) depending on the version. F ...
Super-E - Clark Transmission
... Severe Duty Motors -“ECP” • 230/460V or 460V – 1- 400 HP 2 and 4 pole – stock – 1- 350 HP 6 pole – stock – 1- 900 HP - custom ...
... Severe Duty Motors -“ECP” • 230/460V or 460V – 1- 400 HP 2 and 4 pole – stock – 1- 350 HP 6 pole – stock – 1- 900 HP - custom ...
WARD LEONARD CONTROL SYSTEM
... Mr. Ward Leonard was born in 1861 in Cincinnati, USA. He graduated from the Massachusetts institute of technology at age of 22. A year later he became associated with Thomas A. Edison when he was joined a group of four engineers to introduce the new Edison power-station system. He was appointed supe ...
... Mr. Ward Leonard was born in 1861 in Cincinnati, USA. He graduated from the Massachusetts institute of technology at age of 22. A year later he became associated with Thomas A. Edison when he was joined a group of four engineers to introduce the new Edison power-station system. He was appointed supe ...
practical motor basics
... DC motors have extremely high torque capabilities and can be used in conjunction with relatively simple solid state control devices to give programmed acceleration and deceleration over a wide range of selected speeds. Because the speed of a DC motor is not dependent on the number of poles, there is ...
... DC motors have extremely high torque capabilities and can be used in conjunction with relatively simple solid state control devices to give programmed acceleration and deceleration over a wide range of selected speeds. Because the speed of a DC motor is not dependent on the number of poles, there is ...
Brushed DC electric motor
A brushed DC motor is an internally commutated electric motor designed to be run from a direct current power source. Brushed motors were the first commercially important application of electric power to driving mechanical energy,and DC distribution systems were used for more than 100 years to operate motors in commercial and industrial buildings. Brushed DC motors can be varied in speed by changing the operating voltage or the strength of the magnetic field. Depending on the connections of the field to the power supply, the speed and torque characteristics of a brushed motor can be altered to provide steady speed or speed inversely proportional to the mechanical load. Brushed motors continue to be used for electrical propulsion, cranes, paper machines and steel rolling mills. Since the brushes wear down and require replacement, brushless DC motors using power electronic devices have displaced brushed motors from many applications