0.3m 25mm 6m 6m Phase A Phase B Phase C
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Q: Let v1 = a + jb and v2 = c +jd, then v1 + v2 = (a+c) +j(b+d) only if a) v1 and v2 have the same…
A: Given v1=a+jb, v2=c+jd then v1+v2=(a+c)+j(b+d) this thing will happen when v1 and v2 have same…
Q: QUESTION I DIRECTIONS: Draw the following sinusoidal waveforms: 1. e = 220 sin ( wt - 50°) 2. į = 15…
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Q: 10. Draw the phasor diagram of the 2 succeeding currents if it is out of phase by 90o
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Q: 25. Transform each of the following into phasor form: (a) 75.928 cos (110.1t); (b) 5 cos (55t –…
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Q: 14.54 Express the following phasor currents and voltages as sine waves if the frequency is 60 Hz: a)…
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Q: R = 115 ohms XL = 26 ohms Xc = 51 ohms f = 268 Hz E sine Y m C m
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Q: "If Ibc is equal to 663.3752106 and la is 383angle;16,the phase sequence is:" O POSITIVE O NEGATIVE
A: Phase sequence is a order in which phase voltage are placed in a three phase network.
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Q: Find the phase relationship between the following waveforms: v(t) = 2cos(wt-30°) i(t) = 5sin(ot+60°)
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- The affect of the earth plane is to slightly increase the capacitance, and as the line height increases, the effect of earth becomes negligible. True FalseA single-phase overhead transmission line consists of two solid aluminum conductors having a radius of 3 cm with a spacing 3.5 m between centers. (a) Determine the total line inductance in mH/m. (b) Given the operating frequency to be 60 Hz, find the total inductive reactance of the line in /km and in/mi. (c) If the spacing is doubled to 7 m, how does the reactance change?Shield wires located above the phase conductors protect the phase conductors against lightning. True False
- Conductor spacings, types, and sizes do have an impact on the series impedance and shunt admittance. True FalseAlumoweld is an aluminum-clad steel conductor. True FalseA 60-Hz, single-phase two-wire overhead line has solid cylindrical copper conductors with a 1.5 cm diameter. The conductors are arranged in a horizontal configuration with 0.5 m spacing. Calculate in mH/km (a) the inductance of each conductor due to internal flux linkages only, (b) the inductance of each conductor due to both internal and external flux linkages, and (c) the total inductance of the line.
- 2.5 A 3-phase single circuit bundled conductor line with two sub-conductors per phase has horizontal spacing with 6.1 m between the centre lines of adjacent phases. The distance between the sub- conductors of each phase is 30.5 cm and each sub-conductor has a diameter of 2.54 cm. Find the inductance per phase per km. [0.988 mH]A single phase 2 conductor operates at 50Hz, the diameter of each condcutor is 60mm and spacing between condcutor is 5m, find the loop inductance of the line.b. Determine the inductance per km per phase of a single circuit 460 KV line using two bundle conductors per phase as shown in the figure. The diameter of each conductor is 5 cm. 40cm 6.5m 6.5m 13m --------
- a) The conductor shown in the figure below is composed of five strands. The diameter of each strand is 2.5 mm. Find the GMR (Geometric mean radius) of the conductor. b) The distance between conductors of a single-phase line is 3 m. Each conductor is composed of five strands as shown above. Find the inductance of the line.3-phase single circuit bundled conductor line with two sub-conductors per phase has horizontalspacing with 6.1 m between the centre lines of adjacent phases. The distance between the subconductorsof each phase is 30.5 cm and each sub-conductor has a diameter of 2.54 cm. Find theinductance per phase per km. [0.988 mh]A single-phase transmission line consisting of two conductors, the radius of each conductor is 0.4 cm, the distance between the conductors is three and half meters and the height above ground is eight 1-The capacitance in uF/km without effect of ground is 2-The capacitance in pF/km with effect of ground is