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S4 - Intermittent periodic duty with starting. Identical duty cycles, significant starting time, constant load, de-energized at rest. FI = (JL+JM)/JM. Stamp e.g.:
S5 - Intermittent periodic duty with electric braking. This is like S4 but with electric brake.
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S8 - Continuous-operation periodic duty with related load/speed changes. Stamping example:
S9 - Duty with non-periodic load and speed variations. The duty includes frequently applied overloads that may greatly exceed the reference load (Pref is appropriately based on duty type S1).
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S10: p/Δt = 1,1/0,4; 1/0,3; 0,9/0,2; r/0,1 TL = 0,6
Alla olevassa kuvassa on esitetty millainen mottorin arvokilpi voisi olla. Huomaa, että moottori vastaa luokkaa S1.
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The nominal electrical power can be calculated as shown here:
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In the USA, NEMA-standards are followed.
Katso: IEC 60034-1
Katso: NEMA vs. IEC