Which of the following results in a symmetrical fault?

19EET601 - Protection and Switchgear

Quiz
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Education
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University
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Hard
SATHIYARAJ D
Used 4+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
single phase to earth
phase to phase
all the three phases to earth
two phases to earth
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which portion of the power system is more prone to faults?
Alternator
overhead lines
underground cables
transformer
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Most dangerous type of fault on any power system is:
Phase to earth
Phase to Phase
Phase to Phase to Earth
Three phase fault
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the protection scheme, relay functions as a.....
switching device
isolating device
breaking device
sensing device
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The unprotected zone in the power system is called as……..
hot spot
live spot
dead spot
zone spot
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which one of the following is not an essential quality of a relay?
Accuracy
Sensitivity
Reliability
Fast Operation
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Transformers are protected by ……….protection.
over current
differential
distance
carrier current
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