GETCO Exam Paper (22-07-2015) Which of the following is the wrong statement in terms of slack bus? voltage and angle is specified at this bus it should be located at the centre of the area it should be the largest generator bus in the system it has finite reactive power generation capability voltage and angle is specified at this bus it should be located at the centre of the area it should be the largest generator bus in the system it has finite reactive power generation capability ANSWER DOWNLOAD EXAMIANS APP
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 Y primitive is a sparse matrix lines are connected to less no. of buses bus incidence matrix is a sparse matrix no of lines are less Y primitive is a sparse matrix lines are connected to less no. of buses ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In sub stations for making and breaking of load current load interrupter switches are used relays are used circuit breakers are used isolators are used load interrupter switches are used relays are used circuit breakers are used isolators are used ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Which of the following is not true about fuel cells? no recharging is needed need more than two electrode cost is higher than batteries more efficient no recharging is needed need more than two electrode cost is higher than batteries more efficient 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 as power transformer measuring purpose protection purpose both measuring and protection as power transformer measuring purpose protection purpose both measuring and protection ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In rotating electrical machines, the insulation temperature limit for class B type is 150˚C 180˚C 130˚C 105˚C 150˚C 180˚C 130˚C 105˚C ANSWER EXPLANATION DOWNLOAD EXAMIANS APP insulation Class and temperature limit(in ˚C) is given below:Y - 90A- 105E- 120B-130F-155H-180C- above 180
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