Name different types of fault and which instrument is used
to measures earth,short,open cicuit fault?
Answers were Sorted based on User's Feedback
Answer / vivek
open and short circuit fault is commonly cheked by megger.
earth fault also checked by megger or multimetter.
|Is This Answer Correct ?||20 Yes||3 No|
Answer / gulshan goyal
MAINLY THERE ARE TWO TYPES OF FAULTS SHORT CIRCUIT AND OPEN
CIRCUIT FAULTS.IN SHORT CIRCUIT FAULTS WE STUDY ABOUT
SYMMETRICAL AND UNSYMMETRICAL FAULTS.THE THREE PHASE FAULT
WHICH IS RARE MOST SEVERE FAULT IS SYMMETRICAL FAULT.AND
LL.LG ,LLG ARE UNSYMMETRICAL FAULTS.By performing short
circuit MVA analysis for positive, negative and zero
sequences, symmetrical three phase
and unsymmetrical phase-to-ground, phase-to-phase and
double phase-to-ground fault currents can be resolved.
|Is This Answer Correct ?||8 Yes||3 No|
Answer / mahaboob
plz send correct answers
|Is This Answer Correct ?||5 Yes||2 No|
Answer / monalisa rout
unsymmetrical faults,symmetrical faults,ground-to-
ground,line to ground ,nline to line and megger is a unit
to measure it.
|Is This Answer Correct ?||6 Yes||4 No|
Answer / barkha jha
Above answer is very correct
i want to add some value
for short circuit protection we use fuse as primary
protection & overload load relay for backup protection
for earth fault- we check phase to ground insulation
resistance,in case of earth fault its value comes to zero
For open circuit - check the continuity of supply
|Is This Answer Correct ?||1 Yes||0 No|
Answer / ankit goel
in addition to above ans i would like to add that for earth faults core balance transformers can be used.
|Is This Answer Correct ?||1 Yes||1 No|
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