Motor Drive Lecture 1#C
... The process of selecting an adjustable AC or DC drive is one where load is primary consideration. When considering load characteristics, the following should be evaluated: What type of load is associated with the application ? What is the size of the load? ...
... The process of selecting an adjustable AC or DC drive is one where load is primary consideration. When considering load characteristics, the following should be evaluated: What type of load is associated with the application ? What is the size of the load? ...
Tutorial final Questions
... c. Calculate the load requiring torque if output voltage armature winding rectifier and field winding rectifier is ...
... c. Calculate the load requiring torque if output voltage armature winding rectifier and field winding rectifier is ...
summary of topics
... protected motor designs will attain higher coil temperatures when run in the no-load state than they attain in the locked rotor state. Consequently, the proposed requirements specify evaluating the condition (no-load or locked rotor) that results in the highest power consumption and considering that ...
... protected motor designs will attain higher coil temperatures when run in the no-load state than they attain in the locked rotor state. Consequently, the proposed requirements specify evaluating the condition (no-load or locked rotor) that results in the highest power consumption and considering that ...
Instructions for servicing LMC motors
... generally not reduced by dropping the voltage and thus the speed of the motor, eg on a steep hill. It is therefore no solution to the problem to lower the speed (and thus the voltage) by means of an electronic controller because this will not necessarily reduce the current – rather it will usually m ...
... generally not reduced by dropping the voltage and thus the speed of the motor, eg on a steep hill. It is therefore no solution to the problem to lower the speed (and thus the voltage) by means of an electronic controller because this will not necessarily reduce the current – rather it will usually m ...
CHAPTER 4. DESIGN of EXPERIMENTAL INDUCTION MOTOR DRIVE SYSTEM. -
... Personal Computer (PC). This is the other processor that executes program code as well. It works as a host, not only due to the fact that it has inside all the DSP based boards, but also because it allows the edition and compilation of DSP and PC programs, keeping all the reference values and result ...
... Personal Computer (PC). This is the other processor that executes program code as well. It works as a host, not only due to the fact that it has inside all the DSP based boards, but also because it allows the edition and compilation of DSP and PC programs, keeping all the reference values and result ...
Horsepower and Torque Outline
... Why Amps? More AMPS means larger wire The types of electronic components Adaptation of motors for use in your robot DC brushed motors are designed to operate within a particular voltage range Battery Power Shifts Discharge or loose power over a period of time when under load May be above ...
... Why Amps? More AMPS means larger wire The types of electronic components Adaptation of motors for use in your robot DC brushed motors are designed to operate within a particular voltage range Battery Power Shifts Discharge or loose power over a period of time when under load May be above ...
Brushless Motor Frequently Asked Questions 1. What is an outrunner motor?
... case of the motor stays fixed. An 'outrunner' motor has an inner stator that is stationary, while the outer case rotates. This design allows relatively low RPM with very high torque, eliminating the need for a gearbox. Outrunners are also 'brushless', meaning their are no mechanical contact points t ...
... case of the motor stays fixed. An 'outrunner' motor has an inner stator that is stationary, while the outer case rotates. This design allows relatively low RPM with very high torque, eliminating the need for a gearbox. Outrunners are also 'brushless', meaning their are no mechanical contact points t ...
Neutral zone - Schunk Carbon Technology
... This will result in a series of marks surrounding the true neutral position or they may coincide. Repeating the process by moving the rocker in the opposite direction will produce a point coincident with the first series. This will be the neutral. ...
... This will result in a series of marks surrounding the true neutral position or they may coincide. Repeating the process by moving the rocker in the opposite direction will produce a point coincident with the first series. This will be the neutral. ...
Motor Starting Characteristics of Star
... • Most induction motors are started directly on line, but when very large motors are started that way, they cause a disturbance of voltage on the supply lines due to large starting current surges. • To limit the starting current surge, large induction motors are started at reduced voltage and then h ...
... • Most induction motors are started directly on line, but when very large motors are started that way, they cause a disturbance of voltage on the supply lines due to large starting current surges. • To limit the starting current surge, large induction motors are started at reduced voltage and then h ...
Comparison Study of Singly-Fed Electric Machine with Doubly
... achieved. Torque is the essence of dynamic performance. In addition, the air-gap flux and Maximum Torque Per Ampere are also the essence for motor efficiency, especially in EV/EHV applications. Based on the torque-speed characteristics described in Fig. 2, the following control algorithm is designed ...
... achieved. Torque is the essence of dynamic performance. In addition, the air-gap flux and Maximum Torque Per Ampere are also the essence for motor efficiency, especially in EV/EHV applications. Based on the torque-speed characteristics described in Fig. 2, the following control algorithm is designed ...
Powertec Genesis Start-up Procedure
... Turn the motor shaft by hand while observing the HS(x) LED’s for changing state. You should observe the three LED’s change state from HS1 to HS2 to HS3 emulating the rotation of the motor shaft. It is possible that the reverse will be indicated depending on rotational direction of the motor shaft. ...
... Turn the motor shaft by hand while observing the HS(x) LED’s for changing state. You should observe the three LED’s change state from HS1 to HS2 to HS3 emulating the rotation of the motor shaft. It is possible that the reverse will be indicated depending on rotational direction of the motor shaft. ...
INDUSTRIAL ELECTRICITY NCCER based training Module 1
... 4. Describe the voltage and current transients that occur in an inductive circuit. 5. Define inductive reactance and state how it is affected by frequency. 6. Describe the voltage and current transients that occur in a capacitive circuit. 7. Define capacitive reactance and state how it is affected b ...
... 4. Describe the voltage and current transients that occur in an inductive circuit. 5. Define inductive reactance and state how it is affected by frequency. 6. Describe the voltage and current transients that occur in a capacitive circuit. 7. Define capacitive reactance and state how it is affected b ...
EM-I QB - K.Sivakumar
... 10. What is meant by reactance voltage? 11. Why fractional pitched winding is preferred over full pitched winding? 12. Why do all practical energy conversion devices make use of the magnetic field as a coupling medium rather than an electric field? 13. What is meant by SPP? What is its significance? ...
... 10. What is meant by reactance voltage? 11. Why fractional pitched winding is preferred over full pitched winding? 12. Why do all practical energy conversion devices make use of the magnetic field as a coupling medium rather than an electric field? 13. What is meant by SPP? What is its significance? ...
DY23743747
... known to provide lower energy consumption and improved transient responses. The aim of this application note is to show that this approach, though more computationally intensive, can also be implemented on an AT90PWM3. ...
... known to provide lower energy consumption and improved transient responses. The aim of this application note is to show that this approach, though more computationally intensive, can also be implemented on an AT90PWM3. ...
FREQUENTLY ASKED QUESTIONS – PERMANENT MAGNET AC
... What are some of the major differences in performance between AC Induction and PMAC? The most obvious performance difference is that a PMAC motor rotates at the same speed as the magnetic field produced by the stator windings; i.e. it is a synchronous machine. If the field is “rotating” at 1800 rpm, ...
... What are some of the major differences in performance between AC Induction and PMAC? The most obvious performance difference is that a PMAC motor rotates at the same speed as the magnetic field produced by the stator windings; i.e. it is a synchronous machine. If the field is “rotating” at 1800 rpm, ...
Basic Principles and Functions of Electrical Machines
... machine that converts mechanical energy into electrical energy is called a generator, alternator, or dynamo, and a machine that converts electrical energy into mechanical energy is called a motor. Two related physical principles underlie the operation of generators and motors. The first is the princ ...
... machine that converts mechanical energy into electrical energy is called a generator, alternator, or dynamo, and a machine that converts electrical energy into mechanical energy is called a motor. Two related physical principles underlie the operation of generators and motors. The first is the princ ...
Electric motor
An electric motor is an electrical machine that converts electrical energy into mechanical energy. The reverse of this would be the conversion of mechanical energy into electrical energy and is done by an electric generator.In normal motoring mode, most electric motors operate through the interaction between an electric motor's magnetic field and winding currents to generate force within the motor. In certain applications, such as in the transportation industry with traction motors, electric motors can operate in both motoring and generating or braking modes to also produce electrical energy from mechanical energy.Found in applications as diverse as industrial fans, blowers and pumps, machine tools, household appliances, power tools, and disk drives, electric motors can be powered by direct current (DC) sources, such as from batteries, motor vehicles or rectifiers, or by alternating current (AC) sources, such as from the power grid, inverters or generators. Small motors may be found in electric watches. General-purpose motors with highly standardized dimensions and characteristics provide convenient mechanical power for industrial use. The largest of electric motors are used for ship propulsion, pipeline compression and pumped-storage applications with ratings reaching 100 megawatts. Electric motors may be classified by electric power source type, internal construction, application, type of motion output, and so on.Electric motors are used to produce linear or rotary force (torque), and should be distinguished from devices such as magnetic solenoids and loudspeakers that convert electricity into motion but do not generate usable mechanical powers, which are respectively referred to as actuators and transducers.