• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Full text
Full text

(Wmin x 0.6)+(Wmin x 2)+(2 x 0.6 x 2) > 7.8 m2
(Wmin x 0.6)+(Wmin x 2)+(2 x 0.6 x 2) > 7.8 m2

... acceleration time, deceleration time, Full load current, etc. This allows the user to customise the Inverter for his application. Most Variable Speed Drives have advanced units that could copy parameters from one unit to another. Apart from this basic function most units available today are supplied ...
DC Machines
DC Machines

... • The rotor is supplied by dc current through the brushes, commutator and coils. • The interaction of the magnetic field and rotor current generates a force that drives the motor ...
CEN/CE Capstone Project @ EKU
CEN/CE Capstone Project @ EKU

... The 8-bit ADC of the AVR is setup to use a 5V reference voltage. We have 255 usable steps over the 5 volt range which is equal to 19mV per step. This will not allow us enough precision to detect the zero crossings of the wave form. The bias or baseline of the guitar signal needs to be at 2.56 volts, ...
How to Specify an Electric Flight System
How to Specify an Electric Flight System

... Electrical Power (PIN) is determined by voltage (V) x electrical current (I): PIN = V.I Motor Power (POUT) is determined by torque (t) x angular velocity (w): POUT = t.w = t x rpm ÷ 0.105 The system’s efficiency (e) is determined by: e = POUT ÷ PIN Torque is difficult to measure. For simplicity we w ...
Practice test for final exam
Practice test for final exam

... Solutions: 1a; 2a,c; 3d, 4d, 5c, 9a, 11b, 12a, 13c, 16ace, 17(see notes), 18 load would drop when current is zero, (optics: also see homework problems), 19a; 20c; 21b; 22a, 23a 2a. Power is transmitted at very high voltages from the power plants. The transformer steps this voltage down to 120 V. 2b. ...
Aug 2014 - Pump Ed 101
Aug 2014 - Pump Ed 101

GENERATOR DC / AC 60 HZ, SPEED = …3600 RPM
GENERATOR DC / AC 60 HZ, SPEED = …3600 RPM

M2 : DC Machines
M2 : DC Machines

Chapter 36 Summary – Magnetism
Chapter 36 Summary – Magnetism

... 1. ____________________ What the properties of magnets and their interactions are referred to as. 2. ____________________ The regions on a magnet where the magnetic force is strongest. 3. ____________________ Current that flows in only one direction. 4. ____________________ A device that uses an ele ...
Chapter 5
Chapter 5

MAXIMUM DEMAND CONTROLLER
MAXIMUM DEMAND CONTROLLER

cv 3-200 e - Europower Components Ltd
cv 3-200 e - Europower Components Ltd

... This transducer must be used in electric/electronic equipment with respect to applicable standards and safety requirements in accordance with the following manufacturer's operating instructions. ...
phase shift - Controlled Power Company
phase shift - Controlled Power Company

... PHASE SHIFT General Lenze’s law states: “An induced electromotive force (EMF) always has such a direction as to oppose the action that produces it.” Restated: “When a current in an inductive circuit is increasing, the induced EMF opposes the applied voltage and tends to keep the current from increas ...
Hola Agustin - UniMAP Portal
Hola Agustin - UniMAP Portal

... The induction motor is the most commonly used ac motor because of its simplicity, its robust construction, and its low manufacturing cost. These characteristics of the induction motor are due to the fact that the rotor is self-contained and usually not connected physically to the external source of ...
Synchronous Generator is a doubly excited machine
Synchronous Generator is a doubly excited machine

... phase voltage, VP of the supply, which is equal to 1/√3 × VL. Then each corresponding secondary winding will then have this same voltage induced in it, and since these windings are delta-connected, 5, Single phase power has a sine wave voltage that crosses zero before reversing its polarity. In the ...
Vehicle Power Plant and Transmission Characteristics
Vehicle Power Plant and Transmission Characteristics

... increases. The magnitude of torque at a given slip also increases with increase in slip with the exception of unity slip (starting condition). fs=10Hz fs=30Hz fs=50Hz ...
if on the Internet, Press  on your browser to
if on the Internet, Press on your browser to

... phasors connected by V = IZ, both in magnitude and phase. The diagrams are similar in shape and rotated by the phase angle between voltage and current in each impedance. Remember that the line voltages are the red vectors while the line currents are the blue vectors. Z relates either the line voltag ...
DESIGN AND FABRICATION OF SINGLE PHASE INDUCTION
DESIGN AND FABRICATION OF SINGLE PHASE INDUCTION

... conductors by the transformer action. The starting torque in the motor is developed by adjusting the position of the short-circuited brushes on the commutator [1]. Principle of operation A single phase Ac motor with transformer action coupling between the windings of the stator and rotor. The stator ...
- Melexis
- Melexis

... and any and all warranties, express, statutory, implied, or by description, including warranties of fitness for particular purpose, non-infringement and merchantability. Melexis reserves the right to change it at any time and without notice. Users should obtain the latest version of the information ...
To read a diagram, we must understand a circuit. Here is Dictionary
To read a diagram, we must understand a circuit. Here is Dictionary

... diagram should show a connection between the two as they are connected by a motor centrifugal start switch. When the motor gets up to speed, the start switch opens up, cutting off the start windings and power to the IR relay (more on that later). The run windings have two sets for each direction, 1 ...
Deragger Presentation June 2014
Deragger Presentation June 2014

... 2007 and expected to grow at a rate of 6 percent annually for the next five years. • This cost the water utilities Millions on inefficient Pumping ...
10. energy efficient technologies in electrical systems
10. energy efficient technologies in electrical systems

... These devices are capable of up to a 9:1 speed reduction ratio (11 percent of full speed), and a 3:1 speed increase (300 percent of full speed). In recent years, the technology of AC variable frequency drives (VFD) has evolved into highly sophisticated digital microprocessor control, along with high ...
Electricity Basics for Boiler Operation - Cleaver
Electricity Basics for Boiler Operation - Cleaver

Proceedings
Proceedings

... Diodes contain two junctions, a positively doped material and a negatively doped material. In order to allow a flow of electrons from one junction to another, the positive doped material needs to be at a higher potential than the negative doped junction. This means the junction will stop the flow fr ...
< 1 ... 419 420 421 422 423 424 425 426 427 ... 489 >

Stepper motor



A stepper motor or step motor or stepping motor is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can then be commanded to move and hold at one of these steps without any feedback sensor (an open-loop controller), as long as the motor is carefully sized to the application in respect to torque and speed.Switched reluctance motors are very large stepping motors with a reduced pole count, and generally are closed-loop commutated.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report