Generator Design Using MotorSolve v6
... Motors can also operate as generators Common design principles for motors and generators Design of outputs is different for motors and generators Optimal generator design will be different than optimal motor design • Most software tools use the fact that motors can act as generators and address only ...
... Motors can also operate as generators Common design principles for motors and generators Design of outputs is different for motors and generators Optimal generator design will be different than optimal motor design • Most software tools use the fact that motors can act as generators and address only ...
Fuses - Time Delay
... When used in circuits with surge currents such as those caused by motors, transformers, and other inductive components, the Cooper Bussmann LowPeak and Fusetron dual-element, time-delay fuses can be sized close to fullload amps to give maximum overcurrent protection. Sized properly, they will hold u ...
... When used in circuits with surge currents such as those caused by motors, transformers, and other inductive components, the Cooper Bussmann LowPeak and Fusetron dual-element, time-delay fuses can be sized close to fullload amps to give maximum overcurrent protection. Sized properly, they will hold u ...
Printable Version of Questions for Evaluation Test
... rated at 75 degrees C, and THHN conductors will be used. 77. 12 AWG, THHN conductors installed in EMT which passes over a ceiling that is heated with electric space heating cable and having a clearance of 3 inches shall have their ampacity reduced to _____________. 78. The emergency controls for att ...
... rated at 75 degrees C, and THHN conductors will be used. 77. 12 AWG, THHN conductors installed in EMT which passes over a ceiling that is heated with electric space heating cable and having a clearance of 3 inches shall have their ampacity reduced to _____________. 78. The emergency controls for att ...
Design and Implementation of a Hybrid Electric Bike
... The two stage design is also compatible with our goal of enabling regeneration, but also creating an efficient hybrid-electric solution. The two stage design enabled us to use a clutch in the system which would not have been possible in either the single stage or roller based drive system given our ...
... The two stage design is also compatible with our goal of enabling regeneration, but also creating an efficient hybrid-electric solution. The two stage design enabled us to use a clutch in the system which would not have been possible in either the single stage or roller based drive system given our ...
Modeling electric drivetrains (as covered in class)
... No-load test (rm , Bm ): In a no-load test, the motor input voltage, vin , is varied, and armature current and motor speed are measured. From KVL on the armature circuit: vin − Rm im − rm ωm = 0, which allows determination of rm . Once rm is found, the mechanical rotational losses can be found since ...
... No-load test (rm , Bm ): In a no-load test, the motor input voltage, vin , is varied, and armature current and motor speed are measured. From KVL on the armature circuit: vin − Rm im − rm ωm = 0, which allows determination of rm . Once rm is found, the mechanical rotational losses can be found since ...
Learning Examples | Foundations | Hacking | Links
... This page shows two examples on how to drive a unipolar stepper motor. These motors can be found in old floppy drives and are easy to control. The one we use has 6 connectors of which one is power (VCC) and the other four are used to drive the motor sending synchronous signals. The first example is ...
... This page shows two examples on how to drive a unipolar stepper motor. These motors can be found in old floppy drives and are easy to control. The one we use has 6 connectors of which one is power (VCC) and the other four are used to drive the motor sending synchronous signals. The first example is ...
STEVAL-IHM041V1
... 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 services described herein. No license, express or implied, by estoppel or other ...
... 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 services described herein. No license, express or implied, by estoppel or other ...
Diesel-Electric Propulsion Systems
... are based on the principle of speed controlled AC or DC motors driving the propeller directly or by gearing. The most reliable and low noise design is the direct drive. Electric propulsion systems are designed according to the „power station principle“. That means that under normal conditions all al ...
... are based on the principle of speed controlled AC or DC motors driving the propeller directly or by gearing. The most reliable and low noise design is the direct drive. Electric propulsion systems are designed according to the „power station principle“. That means that under normal conditions all al ...
Diesel-Electric Propulsion Systems
... are based on the principle of speed controlled AC or DC motors driving the propeller directly or by gearing. The most reliable and low noise design is the direct drive. Electric propulsion systems are designed according to the „power station principle“. That means that under normal conditions all al ...
... are based on the principle of speed controlled AC or DC motors driving the propeller directly or by gearing. The most reliable and low noise design is the direct drive. Electric propulsion systems are designed according to the „power station principle“. That means that under normal conditions all al ...
Interfacing hardware with microcontroller
... STEPPER MOTOR is a brushless DC motor whose rotor rotates in discrete angular increments when its stator windings are energized in a programmed manner. Rotation occurs because of magnetic interaction between rotor poles and poles of sequentially energized stator windings. The rotor has no elec ...
... STEPPER MOTOR is a brushless DC motor whose rotor rotates in discrete angular increments when its stator windings are energized in a programmed manner. Rotation occurs because of magnetic interaction between rotor poles and poles of sequentially energized stator windings. The rotor has no elec ...
101 basics series starters and contactors
... arcs produce additional heat, which, if continued, can damage the contact surfaces. ...
... arcs produce additional heat, which, if continued, can damage the contact surfaces. ...
Diagnostic News Is On-Line PD Testing Useful for Hydrogen-Cooled Turbine Generators? September 2015
... been known for the last 100 years, there has been an increase in occurrences and intensity of shaft current damage as machines become larger, operate at higher speeds, and more magnetic-based non-destructive inspection tools are used. This problem may affect all types of rotating machines (electrica ...
... been known for the last 100 years, there has been an increase in occurrences and intensity of shaft current damage as machines become larger, operate at higher speeds, and more magnetic-based non-destructive inspection tools are used. This problem may affect all types of rotating machines (electrica ...
Institutionen för systemteknik Department of Electrical Engineering Modeling and Control of Electromechanical
... Introduction In this chapter, an introduction to the thesis work is given, which includes background, purpose and goals, problem formulation and expected results. ...
... Introduction In this chapter, an introduction to the thesis work is given, which includes background, purpose and goals, problem formulation and expected results. ...
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.