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

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GETCO Exam Paper (22-07-2015)
Which of the following is the wrong statement in terms of slack bus?

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

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GETCO Exam Paper (22-07-2015)
The rating of given on the name plate of a transformer indicates the:

Apparent power which it can supply
True power which it can supply
Apparent power which it draws from the supply mains
True power whichh it draws from the supply mains

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