Question
Download Solution PDFSymmetrical components are used in power system for the analysis of
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFSymmetrical components:
Any unbalanced system of n phasors can be resolved into the n-system of balanced phasors. These subsystems of balanced phasors are called symmetrical components. These are used in the analysis of unbalanced three-phase faults.
Positive sequence components:
Set of three phasors equal in magnitude, displaced from each other by 120° in phase, and having the same phase sequence as the original phasors constitute positive sequence components. They are denoted by suffix 1.
Negative sequence components:
Set of three phasors equal in magnitude, displaced from each other by 120° in phase, and having phase sequence opposite to that original phasors constitute the negative sequence component. They are denoted by suffix 2.
Zero sequence components:
The set of three phasors equal in magnitude and all phases (with no mutual phase displacement) constitute zero sequence components. They are denoted by suffix 0.
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