Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > Single phase to ground fault is a/an ______ f...
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Single phase to ground fault is a/an ______ fault.
- a)unsymmetrical
- b)disaster
- c)thermal
- d)symmetrical
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
Single phase to ground fault is a/an ______ fault.a)unsymmetricalb)dis...
Single line-to-ground fault:
On a transmission line when one conductor drops to the ground or comes in contact with the neutral conductor, then there is an insulation breakdown between one of the phases and earth, due to which single line to ground fault takes place. Such types of failures may occur in a power system due to many reasons like high-speed wind, falling off a tree, lightning, etc.
Unsymmetrical faults:
These are faults that lead to unequal currents with unequal phase shifts in a three-phase system. The unsymmetrical fault occurs in a system due to the presence of an open circuit or short circuit of transmission or distribution line. These are classified as
These are faults that lead to unequal currents with unequal phase shifts in a three-phase system. The unsymmetrical fault occurs in a system due to the presence of an open circuit or short circuit of transmission or distribution line. These are classified as
- Single line to ground fault (LG)
- Double line fault (LL)
- Double line to ground fault (LLG)
Most Upvoted Answer
Single phase to ground fault is a/an ______ fault.a)unsymmetricalb)dis...
Single line-to-ground fault:
On a transmission line when one conductor drops to the ground or comes in contact with the neutral conductor, then there is an insulation breakdown between one of the phases and earth, due to which single line to ground fault takes place. Such types of failures may occur in a power system due to many reasons like high-speed wind, falling off a tree, lightning, etc.
Unsymmetrical faults:
These are faults that lead to unequal currents with unequal phase shifts in a three-phase system. The unsymmetrical fault occurs in a system due to the presence of an open circuit or short circuit of transmission or distribution line. These are classified as
These are faults that lead to unequal currents with unequal phase shifts in a three-phase system. The unsymmetrical fault occurs in a system due to the presence of an open circuit or short circuit of transmission or distribution line. These are classified as
- Single line to ground fault (LG)
- Double line fault (LL)
- Double line to ground fault (LLG)
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Single phase to ground fault is a/an ______ fault.a)unsymmetricalb)disasterc)thermald)symmetricalCorrect answer is option 'A'. Can you explain this answer?
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