Chapter 4: Q5MCQ (page 220)
Question:Shield wires located above the phase conductors protect the phase conductors against lightning. (a) True (b) False
Short Answer
Answer
Therefore, the correct option is (a) True.
Chapter 4: Q5MCQ (page 220)
Question:Shield wires located above the phase conductors protect the phase conductors against lightning. (a) True (b) False
Answer
Therefore, the correct option is (a) True.
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Get started for freeCalculate the capacitance-to-neutral in and the admittance-to-neutral in for the single-phase line in Problem 4.8. Neglect the effect of the earth plane.
Re-work Problem 4.18 if the phase spacing between adjacent conductors is (a) increased by to
or (b) decreased by
to
. Compare the results with those Of Problem 4.18.
Problem 4.18
A, three-phase completely transposed overhead line has one ACSR
conductor per phase and flat horizontal phase spacing, With
between adjacent conductors. Determine the inductance in
and the inductive reactance in
.
For the single-phase line of Problem 4.14 (b), if the height of the conductor above ground is 80ft, determine the line-to-line capacitance in F/m. Neglecting earth effect, evaluate the relative error involved. If the phase separation is doubled, repeat the calculations.
Is Geometric Mean Distance (GMD) the same as Geometric Mean Radius (GMR)?
(a) Yes
(b) No
Along with limiting corona and its effects, particularly for EHV lines, the maximum ground-level electric field strength needs to be controlled to avoid the shock hazard.
(a) True
(b) False
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