AC Generators I Notes
... Phase sequence: The phase sequence is the time order in which the voltages pass through their respective maximum values. Phase sequence is important because it determines the direction of rotation of a connected motor. Positive phase sequence (ABC): ...
... Phase sequence: The phase sequence is the time order in which the voltages pass through their respective maximum values. Phase sequence is important because it determines the direction of rotation of a connected motor. Positive phase sequence (ABC): ...
FS2/4 Field Regulator
... SAF’s FS2/4 Field Regulators are designed specifically to provide controlled DC current output for the highly inductive loads found in the motor field coils. The use of a regulator provides the following benefits: • Consistent field flux level independent of motor temperature changes • Allows over ...
... SAF’s FS2/4 Field Regulators are designed specifically to provide controlled DC current output for the highly inductive loads found in the motor field coils. The use of a regulator provides the following benefits: • Consistent field flux level independent of motor temperature changes • Allows over ...
stepper motors and drive methods
... within reason, draw the higher current they need to start up quickly. Stepper motors depend on reluctance torque only, so they can not start up as large a load as a comparable conventional motor. A stepper motor will move a load a certain discrete amount for each pulse applied, then stop and do noth ...
... within reason, draw the higher current they need to start up quickly. Stepper motors depend on reluctance torque only, so they can not start up as large a load as a comparable conventional motor. A stepper motor will move a load a certain discrete amount for each pulse applied, then stop and do noth ...
Universal motor
... motors is not limited by the supply frequency and may be as high as 20,000 rpm , they are most suitable for applications requiring high speeds . The factors that determine the speed for any dc motor are the same as those for ac series or universal motors i.e flux and generated voltage . Generated vo ...
... motors is not limited by the supply frequency and may be as high as 20,000 rpm , they are most suitable for applications requiring high speeds . The factors that determine the speed for any dc motor are the same as those for ac series or universal motors i.e flux and generated voltage . Generated vo ...
Section 2 notes--Electromagnetism
... Electric Motors • An electric motor is a device that changes electrical energy into mechanical energy Electric motors contain electromagnets that are free to rotate between the poles of a permanent, fixed magnet The coil in the electromagnet is connected to a source of electric current ...
... Electric Motors • An electric motor is a device that changes electrical energy into mechanical energy Electric motors contain electromagnets that are free to rotate between the poles of a permanent, fixed magnet The coil in the electromagnet is connected to a source of electric current ...
MAGNASTART Slipring Motor Starters TM P O W E R
... the starting current/torque requirements. A shorting contactor operated by a timer is connected across the MagnastartTM, to short out the rotor once near full speed is reached. During commissioning, test starts followed by adjustment of MagnastartTM tappings allow the best balance between start curr ...
... the starting current/torque requirements. A shorting contactor operated by a timer is connected across the MagnastartTM, to short out the rotor once near full speed is reached. During commissioning, test starts followed by adjustment of MagnastartTM tappings allow the best balance between start curr ...
Introduction - The City University of New York
... Applied Motion Products: Step/DC motors and drives, ...
... Applied Motion Products: Step/DC motors and drives, ...
Series 30xx - Lehner
... 6. All efficiency figures (ŋ) contain losses of motor and controller. Total efficiency of 94% contains a controller loss of ca. 1 - 2% which corresponds to a pure motor efficiency of ca. 95 - 96%. 7. Series 30xx motors are optimized for partial load through finely segmented rotors. 8. The temperatur ...
... 6. All efficiency figures (ŋ) contain losses of motor and controller. Total efficiency of 94% contains a controller loss of ca. 1 - 2% which corresponds to a pure motor efficiency of ca. 95 - 96%. 7. Series 30xx motors are optimized for partial load through finely segmented rotors. 8. The temperatur ...
Types of Electric Motors
... Note: Figure is misleading. The number of poles must be an even integer of the number of phases used be an even integer of the number of phases used. Thus this diagram should have 6 coils, but that would prevent one from imagining the rotation. ...
... Note: Figure is misleading. The number of poles must be an even integer of the number of phases used be an even integer of the number of phases used. Thus this diagram should have 6 coils, but that would prevent one from imagining the rotation. ...
EC FANS EN
... parts and therefore it is more reliable than a reed switch. To no surprise it is now the most widely used sensor in industrial ...
... parts and therefore it is more reliable than a reed switch. To no surprise it is now the most widely used sensor in industrial ...
doc - Cornerstone Robotics
... energy. Using magnetism, a motor converts electrical energy into mechanical energy by turning an output shaft. o "The electric motor is the most convenient of all sources of motive power. It is clean and silent, starts instantly, and can be built large enough to drive the world's fastest trains or s ...
... energy. Using magnetism, a motor converts electrical energy into mechanical energy by turning an output shaft. o "The electric motor is the most convenient of all sources of motive power. It is clean and silent, starts instantly, and can be built large enough to drive the world's fastest trains or s ...
Introduction - City University of New York
... Applied Motion Products: Step/DC motors and drives, ...
... Applied Motion Products: Step/DC motors and drives, ...
AC Induction Motor Slip – What It Is And How To
... construction, the shaft with bearings and the cooling fan Motor Slip Is Necessary For Torque Generation An AC induction motor consists of two assemblies,stator and rotor. The stator structure is composed of steel laminations shaped to form poles. Copper wire coils are wound around these poles. These ...
... construction, the shaft with bearings and the cooling fan Motor Slip Is Necessary For Torque Generation An AC induction motor consists of two assemblies,stator and rotor. The stator structure is composed of steel laminations shaped to form poles. Copper wire coils are wound around these poles. These ...
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 ...
Zigbee based Stepper Motor Speed and direction control
... The purpose of this project is to control the speed and direction of a dual stepper motors using Zigbee based remote control. For applications where precise measuring of a motors' rotor position is critical, a Stepper Motor is the best choice. Stepper motors operate differently from other motors rat ...
... The purpose of this project is to control the speed and direction of a dual stepper motors using Zigbee based remote control. For applications where precise measuring of a motors' rotor position is critical, a Stepper Motor is the best choice. Stepper motors operate differently from other motors rat ...
Mobile Robotics - Actuators
... electromagnet push and pull against the permanent magnets on the outside of the motor As the poles of the armature electromagnet pass the poles of the permanent magnets, the commutator reverses the polarity of the armature electromagnet. During that instant of switching polarity, inertia keeps the m ...
... electromagnet push and pull against the permanent magnets on the outside of the motor As the poles of the armature electromagnet pass the poles of the permanent magnets, the commutator reverses the polarity of the armature electromagnet. During that instant of switching polarity, inertia keeps the m ...
Analysis of power parameters of the squirrel cage motor and LSPMS
... skończonych, model polowo-obwodowy ...
... skończonych, model polowo-obwodowy ...
Water System Capacity
... Why Is This Important? During design, we can avoid using fittings and materials with high friction losses Bottom line – SAVING $$$$$$$ ! ...
... Why Is This Important? During design, we can avoid using fittings and materials with high friction losses Bottom line – SAVING $$$$$$$ ! ...
- Switched Reluctance Drive Systems
... The absence of rotor copper loss eliminates the problem that the induction motor has associated with rotor cooling due to its poor thermal effects. The absence of permanent magnets on the rotor eliminates the problem that the Brushless DC motor has with high temperature environments whereby the magn ...
... The absence of rotor copper loss eliminates the problem that the induction motor has associated with rotor cooling due to its poor thermal effects. The absence of permanent magnets on the rotor eliminates the problem that the Brushless DC motor has with high temperature environments whereby the magn ...
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.