Power Systems Objective Questions & Answers – Set 11
Power Systems Objective Questions & Answers
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Which of the following represents the transmission line positive sequence reactance
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Wrong!

For a line characteristic impedance z_{o} terminated is load z_{o}/3, the reflection coefficient is
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Wrong!

The positive, negative and zero sequence per unit impedance of two generators connected in parallel are X_{1} = 0.12 pu, X_{2} = 0.096 pu and X_{0} = 0.036 pu. For LG fault at generator terminals (with 1 pu voltage) the positive sequence current will be
Correct!
Wrong!

If R = 84 ohm/Km, G = 106 mho/Km, H = 0.01 H/Km, C = 0.061 Î¼ F/Km and frequency = 1000 Hz, then what is the value of propagation constant of the transmission line
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Wrong!

Which following statement are not true for line parameters R, L, G and C of transmission line
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Wrong!

The characteristic impedance of a transmission on line is
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In a lossless medium the intrinsic impedance Î· 60Ï€ and Î¼_{r} = 1. The relative dielectric constant Îµ_{r} shall be
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Wrong!

The characteristic impedance of a transmission on line is
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Which of the following is/are the methods of improving transient stability?
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For distortion less line which of following relation are true
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Which statement is not correct for the transmission line parameter R, L, G and C
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Wrong!

For distortion less line which of following relation are true
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Wrong!

A synchronous generator is of 100 MVA have inertia constant of 20 MJ/MVA. Find the angular momentum in MJsec/electrical degrees
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The SWR on a lossless transmission line of the characteristic impedance 100 ohm is 3. The line is the terminated by
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Consider a long, two wire line composed of solid round conductors. The radius of both conductors is 0.25 cm and distance between their centers is 100 cm. If this distance is doubled, then the inductance per unit length.
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Which statement is not correct for the transmission line parameter R, L, G and C
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Wrong!

If R = 84 ohm/Km, G = 10^{6} mho/Km, H = 0.01 H/Km, C = 0.061 Î¼ F/Km and frequency = 1000 Hz, then what is the value of propagation constant of the transmission line
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Wrong!

High capacity generators and motors are of
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Which of the following statements is/are true? In case of parallel transmission lines
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Wrong!

The positive (Z_{1}), negative (Z_{2}) and zero sequence (Z_{0}) impedances of a transmission line follows the relation
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Wrong!

For a lossy transmission line, the characteristic impedance does not depend on