Three-phase system
concept · 1889 · Electric age
A system of three currents shifted in phase (Dolivo-Dobrovolsky).
Authors: Nikola Tesla, Mikhail Dolivo-Dobrovolsky, Galileo Ferraris, Jonas Wenström.
Principles and materials it uses
- Alternating current — uses. A three-phase system is three alternating currents shifted against each other.
Where it is used
- Electrical grid — is used in. A three-phase system.
- Induction motor — is used in. Three phases create a rotating field.