Glossary of standardization terms

Standardization fieldElectrical engineering
Technical committeeBAS/TC 18- Power transformers, measuring relays and protective equipment
Term (EN)positive (sequence) component (of a three-phase system)
Definition (EN)One of the three symmetrical sequence components which exists in symmetrical and unsymme-trical three-phase system(s) of sinusoidal quantities and which is defined by the following complex mathematical expression: X1 = 1/3 (XL1 + aXL2 + a2 XL3 ) where a is the 120 degree operator, and XL1 , XL2 and XL3 are the complex expressions of the phase quantities concerned, and where X denotes the system current or voltage phasors.
Term (FR)
Definition (FR)
Term (DE)
Definition (DE)
Term (BS)komponenta direktnog redoslijeda (trofaznog sistema)
Definition (BS)Jedna od tri simetrične komponente sinusoidalnih veličina koja postoji u simetričnom i nesimetričnom trofaznom sistemu (sistemima) i definirana je slijedećim kompleksnim matematičkim izrazom: X1 = 1/3 (XL1 + aXL2 + a2 XL3 ) gdje je a operator rotacije od 1200, a XL1 , XL2 i XL3 su kompleksni izrazi faznih veličina na koje se odnose, a X znači fazore struje ili napona sistema.
Term (HR)
Definition (HR)
Term (SR)
Definition (SR)
Date2016-02-10
StandardsBAS IEC 60050-448:2005