For a fixed value of complex power flow in a transmission line having a sending and voltage V, the real

For a fixed value of complex power flow in a transmission line having a sending and voltage V, the real power loss will be proportional to 

A) V B) v2 C) 1/V2 D)1/V

by

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Answer :

For a fixed value of complex power flow in a transmission line having a sending and voltage V, the real power loss will be proportional to 1/V2

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A 100 km transmission line is designed for a nominal voltage of 132 kV and consists of one

Description : A 100 km transmission line is designed for a nominal voltage of 132 kV and consists of one conductor per phase. The line reactance is 0.726 ohm/km. The static transmission capacity of the line, in MW, would be   (a) 240 (b) 132 (c) 416 (d) 720

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If sending end voltage is Vs at no-load in a transmission line then receiving end voltage is if ABCD parameters of line is given a) Vs b) Vs/A c) 0 d) Infinity

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Description : A loss less transmission line having Surge Impedance Loading (SIL) of 2280 MW is provided with a uniformly distributed series capacitive compensation of 30%. Then, SIL of the compensated transmission line will be (A) 1835 MW (B) 2280 MW (C) 2725 MW (D) 3257 MW

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Choose two appropriate auxiliary components of a HVDC transmission system from the following P. D.C line

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A generator is connected through a 20 MVA, 13.8/138 kV step down transformer, to a transmission line.

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An HVDC link consist of rectifier, inverter transmission line and other equipments. Which one of the following

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A long overhead transmission line is terminated by its characteristic...

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The time taken for a surge to travel a 600 km long overhead transmission line is?

Description : The time taken for a surge to travel a 600 km long overhead transmission line is?

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A lossless radial transmission line with surge impedance loading?

Description : A lossless radial transmission line with surge impedance loading?

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A transmission line conductor at a river crossing is supported from two...

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A three phase over head transmission line has its conductors horizontally...

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For an existing ac transmission line, the string efficiency is 80%, if dc...

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A single-phase transmission line of impedance j 0.8 ohm supplies a resistive...

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A 100 km long transmission line is loaded at 110 kV.if the loss of line is ...

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In a DC transmission line?

Description : In a DC transmission line?

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When a wave propagates on a transmission line, it suffers reflection several times at (a) tapping (b) load end (c) sending end (d) sending and other end (e) all of the above

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A voltage of 1000 kV is applied to an overhead line with its receiving end...

Description : A voltage of 1000 kV is applied to an overhead line with its receiving end open. If the surge impedance of the line is 500 ohm, then the total surge power in the line ill

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A 60 Hz, 320 km lossless line has Bending end voltage 1.0 p.u, The receiving end voltage on no load is

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To increase the visual critical voltage of cporona for an overhead line, ...

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For a short line if the receiving end voltage is equal to the sending end voltage under loaded conditions...

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Description : A transformer has negative voltage regulation when its load power factor is   (1) Zero (2) Unity (3) Leading (4) Lagging

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If the reference bus is changed in two load flow runs with same system data and power obtained for

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Last Answer : For a single phase overhead line having solid copper conductors of diameter 1 cm, spaced 60 cm between centers, the inductance in mH/km is 0.05 + 0.2 ln (6010.5).

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Description : Corona loss in transmission lines can be reduced by (A) using small diameter conductors (B) using bundled conductors (C) using less spacing between conductors (D) increasing the transmission line voltage

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If a 5-bus test system contains 6 transmission lines and one transformer, how many non- zero elements are

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Suppose transmission rate of a channel is 32 kbps. If there are ‘8’ routes from source to destination and each packet p contains 8000 bits. Total end to end delay in sending packet P is _____. a. 2 sec b. 3 sec c. 4 sec d. 1 sec

Description : Suppose transmission rate of a channel is 32 kbps. If there are ‘8’ routes from source to destination and each packet p contains 8000 bits. Total end to end delay in sending packet P is _____. a. 2 sec b. 3 sec c. 4 sec d. 1 sec

Last Answer : a. 2 sec

Message can be sent more securely using DES by a. encrypting plain text by a different randomly selected key for each transmission b. encrypting plain text by a different random key for each message transmission and sending the key to the receiver using a public key system c. using an algorithm to implement DES instead of using hardware d. designing DES with high security and not publicizing algorithm used by it

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Last Answer : Ans: B