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close this bookElectrical Machines - Basic Vocational Knowledge (IBE - Deutschland; 144 pages)
View the documentIntroduction
Open this folder and view contents1. General information about electrical machines
close this folder2. Basic principles
Open this folder and view contents2.1. The magnetic field
Open this folder and view contents2.2. Measurable variables of the magnetic field
close this folder2.3. Force action of the magnetic field
View the document2.3.1. Force action on cur rent-carrying conductors
View the document2.3.2. Force action on current-carrying coils (motor principle)
Open this folder and view contents2.4. Voltage generation through induction
Open this folder and view contents3. Execution of rotating electrical machines
Open this folder and view contents4. Synchronous machines
Open this folder and view contents5. Asynchronous motors
Open this folder and view contents6. Direct current machines
Open this folder and view contents7. Single-phase alternating current motors
Open this folder and view contents8. Transformer
 

2.3.2. Force action on current-carrying coils (motor principle)

Motor principle

As opposed to Figure 17, Figure 19 features a conductor loop is positioned in a rotatable manner. A force is exerted on both conductor sides. This yields an overall torque.

M = 2 • F • r


Figure 19 - Torque incidence in a conductor loop

1 Radius, 2 Effective length, 3 Current direction, 4 Force action

Motor equation

The following equation is forthcoming from the electrodynamic law of force

M = 2 • B • l • I • N • r

M = c • Φ • I

c

machine constants (constructive values)

 

magnetic flow of the external magnetic field

I

current in the conductor loop or coil

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