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A three-phase symmetrical fault exists when all three line conductors are short-circuited, sometimes to earth (ground). An unsymmetrical fault occurs when only one or two of the three lines are involved.

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βˆ™ 12y ago
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βˆ™ 5mo ago

Symmetrical faults occur when all three phases of a power system experience a fault condition simultaneously. These faults are characterized by symmetrical components having equal magnitude and displaced by 120 degrees from each other. Common types include three-phase short circuits and line-to-line faults.

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βˆ™ 13y ago

Symmetrical faults are 3 phase faults i.e fault occurs on all phases at the same time symmetrically, Unsymmetrical faults involve one line to ground or two lines to ground

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Q: What are symmetrical faults?
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Related questions

Why are symmetrical faults more severe than unsymmetrical faults?

Symmetrical faults involve all three phases and create higher fault currents, leading to faster operation of protective devices. Unsymmetrical faults only involve one or two phases and result in lower fault currents, which may not trip protective devices as quickly, causing more damage to the system.


What is a symmetrical fault?

generally faults are of symmentrical and unsymmentrical faults that occur in majorly occurs in transmission lines........ the fault in electrical transmission line which give rise to symmetrical fault current is called symmetric fault. e.g; L-L-L-G fault. if they are in low values then system is said to be "protected" .... In order to avoid those NEUTRAL SHOULD GROUND with resistor or reactor etc,,,,,,,,...........


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No. Your terminology is close but not quite right. The three main types of faults are normal faults, reverse faults, and strike-slip faults. Strike-slip faults may also be called transform faults.


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