A power system is comprised of three elements 0 – 1, 1 – 2, and 2 – 0 of equal pu impedances of 0.25. Determine the bus impedance matrix of the networka)b)c)d)Correct answer is option 'B'. Can you explain this answer?

Question

Answer

Where y₁₀ = y₁₂ = y₂₀ =

The bus admittance matrix can be written as

The bus impedance matrix pan be computed as

(y_bus) det (Y_bus) = (8 x 8) - ( - 4 x - 4) = 48

adjoint (y_bus) =

Hence Z bus =

Similar GATE Doubts

The positive, negative and zero sequence impedances of a three phase generator are Z1, Z2 and Z0 respectively. For a line-to-line fault with fault impedance Zf ,the fault current is If1 = kIf, where If is the fault current with zero fault impedance. The relation between Zfand kis

An alternator has positive, negative and zero sequence impedances as j0.25, j0.25 and j0.5 respectively, is grounded with an impedance of j0.2. For a LLG fault on phase b and c* the positive sequence current ofthe network is____________

A good Sample and Hold circuit should have1. High input impedance2. High output impedance3. Low input impedance4. Low output impedance

A transmission line of 50 ohm characteristic impedance is terminated with a 100 ohm resistance. Find minimum impedance measured across the line?

Top Courses for GATE

Related Content

Mock Test Series

Subject-wise Courses

Other Engg Branches

Related Exams

Company