Chapter 4: Q6MCQ (page 220)
Question:Conductor spacings, types, and sizes do have an impact on the series impedance and shunt admittance.
(a) True
(b) False
Short Answer
Answer
Therefore, the correct option is (a) True.
Chapter 4: Q6MCQ (page 220)
Question:Conductor spacings, types, and sizes do have an impact on the series impedance and shunt admittance.
(a) True
(b) False
Answer
Therefore, the correct option is (a) True.
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Get started for freeCalculate the inductive reactance in of a bundled, three-phase completely transposed overhead line having three ACSR
conductors per bundle, with
between conductors in the bundle. The horizontal phase spacings between bundle centers are
and
.
Question:EHV lines often have more than one conductor per phase; these conductors are called a _______.
If the per-phase line loss in a -long transmission line is not to exceedwhile it is delivering per phase, compute the required conductor diameter if the resistivity of the conductor material is.
The temperature dependence of resistance is also quantified by the relation where and are the resistances at Temperatures and , respectively, and is known as the temperature coefficient of resistance. If a copper wire has a resistance of at role="math" localid="1655276953435" , find the maximum permissible operating temperature of the wire if its resistance is to increase by at most role="math" localid="1655277180970" . Take the temperature coefficient at data-custom-editor="chemistry" to be data-custom-editor="chemistry" .
(a) In practice, one deals with the capacitive reactance of the line in ohms-mi to neutral. Show that Eq. (4.9.15) of the text can be rewritten as
Where is the capacitive reactance spacing factor
is the capacitive reactance at 1-ft spacing
role="math" localid="1655202080897" at f=60Hz
(b) Determine the capacitive reactance in for a single-phase line of problem 4.14. if the spacing is doubled, how does the reactance change?
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