GATE Electrical Engineering (EE) 2018 Solved Paper

Question : 27 of 65

Marks: +1, -0

1000 × 1000

bus admittance matrix for an electric power system has 8000 non-zero elements. The minimum number of branches (transmission lines and transformers) in this system are. (upto 2 decimal places).

Your Answer:

Validate

Solution:

Number of buses = Number of diagonal elements = 1000
No. of non-zero elements = 8000
No. of non-zero off diagonal elements = 7000
No. of transmission lines

=\;{\;\text " No.of non-zero off diagonal elements "\;}/{2}=\;{7000}/{2}=3500

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