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IEVref: | 448-11-28 | ID: | |

Language: | en | Status: Standard | |

Term: | negative (sequence) component (of a three-phase system) | ||

Synonym1: | |||

Synonym2: | |||

Synonym3: | |||

Symbol: | |||

Definition: | one of the three symmetrical sequence components which exists only in an unsymmetrical three-phase system of sinusoidal quantities and which is defined by the following complex mathematical expression:
where | ||

Publication date: | 1995-12 | ||

Source: | |||

Replaces: | |||

Internal notes: | 2017-08-29: Corrected order of <i> and <u> tags. LMO | ||

CO remarks: | |||

TC/SC remarks: | |||

VT remarks: | |||

Domain1: | |||

Domain2: | |||

Domain3: | |||

Domain4: | |||

Domain5: |

__X___{2} = 1/3(__X___{L1} + *a*^{2}__X___{L2} + *a* __X___{L3})

where *a* is the 120 degree operator, and __X___{L1}, __X___{L2} and __X___{L3} are the complex expressions of the phase quantities concerned, and where * X* denotes the system current or voltage phasors