Single Phase Transmission Line has two parallel conductors 2 meters apart. The diameter of each conductor is 0.6 centimeter. What is line to neutral capacitance for 1 kilometer long line?: a. 4.135 nano farads b. 4.135 pico farads c. 8.555 nano farads d. 8.555 pico farads
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- 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 isOver string of three phase transmission line has a four insulators and Ce=D0.12 C. If the voltage between the steal pin of the first insulator and the metal cap of the third insulator is 33 kv. 1- Find the voltage distribution over the insulator. What will be the string efficiency 2- If the sting is supplied by a guard ring and this lead to add one air capacitance of value 0.2 C. What will be the new distribution over the insulators and what will be the new string efficiency.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 meter. Determine 1)The capacitance in uF/km without effect of ground 2)The capacitance in uF/km with effect of ground
- One circuit of a single-phase transmission line is composed of three solid 0.12" radius wires. The return circuit is composed of two 0.15" radius wires. Find the inductance of the complete line in mH/mi. The distance between wires are 40" horizontally and 25" vertically. A. 2.54 mH/mi B. 2.478 mH/mi C. 2.488 mH/mi D. 2.567 mH/mi Provide Clear ExplainationThe capacitance of a single phase two-wire transmission line depends on: Select one: a. All the above O b. the material of cables c. the radius of cables d. the distance between the cables O e. None of abovevii. RCC poles... R... .C... . used to support transmission tower ix. Calculate charring current per phase for 66kV overheard line in cable using line to neutral capacitance of 0.9 nano Farad capacitance. х. What do you understand by electrical potential at a point on the transmission line conductor... .(one line answer) (Note: add reference if required at the end of answer sheet)
- A three phase transmission line has its conductors arranged in a triangular formation so that two of the distances between the conductors are 9 m and the third distance is 15 m. The conductor radius is 6.37 cm. If the length of the line is 39.2 km and the normal operating voltage is 308 kV determine the total charging reactive power in MVAR at 50 Hz, given that o = 8.85419 x 10-12 F/m.Over string of three phase transmission line has a four insulators and Ce=D0.12 C. If the voltage between the steal pin of the first insulator and the metal cap of the third insulator is 33 kv. 1- Find the voltage distribution over the insulator. What will be the string efficiency 2- Ifthe sting is supplied by a guard ring and this lead to add one air capacitance of value 0.2 C. What will be the new distribution over the insulators and what will be the new string efficiency.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]
- Q2: 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 meter. The capacitance in µF/km without effect -1 of ground is إجابتك The capacitance in µF/km with effect of -2 ground isDiscuss the desirable properties of insulators. Explain the causes of insulator failure due to electrical breakdown. Each line of a three-phase system is suspended by a string of three identical insulators of self-capacitance C farad. The shunt capacitance of connecting metal work of each insulator to earth is 20.7 % of C while for line it is 13.8 % of C. Calculate the string efficiency of the system if a guard ring increases the capacitance to the line of metal work of the lowest insulator to 0.25 C.q10/ Complete the blank The inductive reactance of the line conductor is 60 Ω per km, then the inductance of the conductor in Henry for the 41 km long transmission line operating with 20 kV, 50Hz supply is ................................................