GETCO Exam Paper (22-07-2015) The Y bus matrix is a sparse matrix because … no of lines are less bus incidence matrix is a sparse matrix Y primitive is a sparse matrix lines are connected to less no. of buses no of lines are less bus incidence matrix is a sparse matrix Y primitive is a sparse matrix lines are connected to less no. of buses ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Differential equation is required to be solved in _____ Load flow studies economical operation of power systems Finding efficiency of a transmission line Stability studies Load flow studies economical operation of power systems Finding efficiency of a transmission line Stability studies ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Steady state stability of a power system is improved by decreasing generator inertia by fast switching reducing fault clearing time using double circuit line instead of single circuit line decreasing generator inertia by fast switching reducing fault clearing time using double circuit line instead of single circuit line ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Which of the following is a reason to decouple AVR and LFC loops when there is a shortage of reactive power? deference of error is the main reason angle of the voltage is not considered Change in voltage magnitude marginally affects real power AVR loop response is slower than LFC loop deference of error is the main reason angle of the voltage is not considered Change in voltage magnitude marginally affects real power AVR loop response is slower than LFC loop ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In a given current transformer, If permissible current ratio error rated primary current is 5% the CT is suitable for protection purpose measuring purpose both measuring and protection as power transformer protection purpose measuring purpose both measuring and protection as power transformer ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The relay which is most sensitive to power swings (mal operation) is Reactance Relay Over current Relay Mho Relay Impedance Relay Reactance Relay Over current Relay Mho Relay Impedance Relay ANSWER DOWNLOAD EXAMIANS APP
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