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DGVCL Exam Paper (11-12-2011)
If the percentage reactance of the system upto the point of fault is 20% and the base kVA is 10,000 the short ciruit kVA is
20 MVA
10 MVA
60 MVA
50 MVA
20 MVA
10 MVA
60 MVA
50 MVA
Answer
Explanation
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Short circuit kVA = Base kVA/%X
Related Question
DGVCL Exam Paper (11-12-2011)
Ybus used in power flow studies and Zbus used in short circuit studies
Are transpose of each other
Have no inter relation
Are the same
Are inverse of each other
Are transpose of each other
Have no inter relation
Are the same
Are inverse of each other
Answer
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DGVCL Exam Paper (11-12-2011)
What type of insulator is used if the direction of the transmission line is to be changed?
Pin type
Strain type
Suspebsion type
Shakle type
Pin type
Strain type
Suspebsion type
Shakle type
Answer
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DGVCL Exam Paper (11-12-2011)
A fixed step by step procedure for finding the solution of a problem on computer is called
Logic
Hardware
Software
Algorithm
Logic
Hardware
Software
Algorithm
Answer
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DGVCL Exam Paper (11-12-2011)
An IDMT relay provides
A definite time cuttent characteristic
An inverse time current characteristic
An inverse characteristic for low values of the fault current and a definite time characteristic for high values of the fault current
A definite time characteristic for low values of the failt current and an inverse characteristic for high values of the fault current
A definite time cuttent characteristic
An inverse time current characteristic
An inverse characteristic for low values of the fault current and a definite time characteristic for high values of the fault current
A definite time characteristic for low values of the failt current and an inverse characteristic for high values of the fault current
Answer
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DGVCL Exam Paper (11-12-2011)
Which of the following power distribution system gives better reliabity ?
DC 3 wire system
Ring main system
None of these
Radial system
DC 3 wire system
Ring main system
None of these
Radial system
Answer
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