Motor Starting Methods: autotransformer_starting
IEEE Std 3002.7-2018 motor starting study data: critical voltage limits during motor starting, autotransformer tap current and torque percentages, locked-rotor starting power factor by motor rating, reduced-voltage starter method comparison (voltage/current/torque), and net acceleration torque vs speed profile.
| category | parameter name | current pct (%) | description | standard | torque pct (%) | voltage pct (%) |
|---|---|---|---|---|---|---|
| autotransformer_starting | Tap_50pct | 25 | Autotransformer 50% tap: motor receives 50% voltage; line current = tap^2 x locked-rotor current | IEEE Std 3002.7-2018 | 25 | 50 |
| autotransformer_starting | Tap_65pct | 42 | Autotransformer 65% tap: motor receives 65% voltage; line current = tap^2 x locked-rotor current | IEEE Std 3002.7-2018 | 42 | 65 |
| autotransformer_starting | Tap_80pct | 64 | Autotransformer 80% tap: motor receives 80% voltage; line current = tap^2 x locked-rotor current | IEEE Std 3002.7-2018 | 64 | 80 |
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