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close this bookElectrical Machines - Basic Vocational Knowledge (IBE - Deutschland; 144 pages)
View the documentIntroduction
close this folder1. General information about electrical machines
View the document1.1. Definition of terms
View the document1.2. Types of electrical machines
View the document1.3. Operations of electrical machines
View the document1.4. System of rotating electrical machines (generators, motors, converters)
View the document1.5. System of stationary electrical machines (transformers)
Open this folder and view contents2. Basic principles
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
 

1.1. Definition of terms

An electrical machine converts energy from one category into another. Thereby at least one energy category features as electric power.

Survey 1 - Energy transformation of electrical machines

Mechanical system (prime mover)

Generator

Electrical system (mains)

Mechanical system

Motor

Electrical system (mains)

Electrical system (mains)

Rotating converter and transformer

Electrical system (mains)

Irrespective of manifold features, for instance the external shapes of the electrical machines, they all comprise two electric circuits which have been coupled through a magnetic circuit.

An electrical machine is an energy converter in which two electric circuits have been coupled by means of a magnetic circuit.
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