
| Circuits, Formulas and Tables Electrical Engineering - Basic Vocational Knowledge |
| 1. Selected Graphical Symbols of Electrotechnology |
|
Term |
Graphical Symbol | |
| |
in full |
simplified |
|
Polarity |
| |
|
positive |
+ | |
|
negative |
- | |
|
centre point, neutral |
N | |
|
Directions of transmission and motion | |
|
|
energy direction |
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|
direction of motion |
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|
sense of rotation (rotating) |
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|
direction of turning |
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|
Possibilities of adjusting, setting | |
|
|
adjusting |
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|
setting |
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|
Variabilities |
| |
|
general, linear |
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|
non-linear |
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|
Pulse shapes |
| |
|
rectangular pulse, positive |
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|
rectangular pulse, negative |
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|
Shieldings |
| |
|
general |
- - - - |
|
|
electrostatic |
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|
electromagnetic |
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|
shielding of a component |
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