GETCO Exam Paper (22-07-2015) Which of the following is the wrong statement in terms of slack bus? it has finite reactive power generation capability it should be located at the centre of the area it should be the largest generator bus in the system voltage and angle is specified at this bus it has finite reactive power generation capability it should be located at the centre of the area it should be the largest generator bus in the system voltage and angle is specified at this bus ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) What is the surge impedance loading of 400 kV line with surge impedance given as 160 Ω 250 MW 1000 kW 400 MW 1000 MW 250 MW 1000 kW 400 MW 1000 MW ANSWER EXPLANATION DOWNLOAD EXAMIANS APP SIL = (kV)²/Z₀
GETCO Exam Paper (22-07-2015) The value of holding ratio of relay is always Infinite zero greater than 1 less than 1 Infinite zero greater than 1 less than 1 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The fault occurring in transmission actually are mostly L-L-G L-L L-G L-L-L L-L-G L-L L-G L-L-L ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) For eliminating 7th harmonics from generated EMF in alternator the fractional pitch must be 7\8 5\6 6\7 2\3 7\8 5\6 6\7 2\3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP fractional pitch = Cos( α/2)α is obtain from: (nα/2)=90˚ where n is harmonicα=25.7143˚fractional pitch=6/7
GETCO Exam Paper (22-07-2015) The Y bus matrix is a sparse matrix because … bus incidence matrix is a sparse matrix no of lines are less lines are connected to less no. of buses Y primitive is a sparse matrix bus incidence matrix is a sparse matrix no of lines are less lines are connected to less no. of buses Y primitive is a sparse matrix ANSWER DOWNLOAD EXAMIANS APP
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