The weight of the transmission cable is 1.5kg/m distributed horizontally. If the maximum safe tension of the cable is 6000kg and the allowable sag is 30m, determine the horizontal distance between the electric posts supporting the transmission cable.
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- (ii) An overhead transmission line is supported at a river crossing by two towers of height 35 m. The weight of the conductor is 0.307 kg/m. The weight due to wind is 1.3 kg/m. The ultimate strength is 1400 kg and factor of safety is 3. If the Span length is 130 m. Determine a) Total weight of the conductor Answer for part 1 b) Sag Answer for part 2 c) Total Length of conductor between supports Answer for part 3 d) Clearance between the lowest point on the conductor and water level.1. Service-drop conductors must have__. A. Aufficient ampacity to carry the current for the load B. Adequate mechanical strenghth C. A or B D. A and BAn over head transmission line supported from two towers location at the same level. The distance between the towers is 200 m. The tension in the wires is 9000 N. The weight of one meter of the conductor is 10 N. The sag of the wires is *
- 1. Identify and describe the step-by-step process used to pull cable and the step-by-step process used to install cable in buildings.A two-wire DC splitter of 1Km length and resistance of each conductor (m/00030.0) and feeds the loads as shown in the augmented form: 1. Minimum voltage point on the conductor 2. The voltage at each load point 400V 200m 300m 400m 100m 80A 60A 10A SOAQ1(b) Draw the following effects occurred in the HIGH VOLTAGE transmission line conductors: i) Physical Transposition ii) "Proximity effect" based on position of the conductors and magnetic flux
- Problem #1 • An overhead line has span of 260m. The tension in the line is 1200kg while the conductor weighs 650 kg per 100 meters. Calculate the maximum SAG in the conductor. If the height of the tower is 13 meters, estimate the clearance of conductor to the ground. Draw a figure and mark values of sag, clearance, span, height of conductor etc.Which of the following is?are an application of electrimagnets. A) relays, B) generations, C) magnetic cluches, D) all of the above. When using the left hand rule for conductor, the fingers point in the direction of_______. A) the electron flow, B) the field around the conductor, C) both a and b, D) none Upon what does the strength of an air-cored coil depend?A) amount of current flow, B) number of turns, C) permeability of the core, D) all aboveA- Define Impedence. Mention the difference between Impedence and Resistance ? B- A coaxial cable's shiled diameter is 0.4cm and the inner conductor has a diameter of 0.02cm. What is the characteristic impedance of that cable? C- What is meant by impedance matching? Why is impedance matching is needed?
- Which of the following is the code of installation (single core single wire) cable? Tesisat kablosunun kodu aşağıdakilerden hangisidir? A) YW (NYY) B) NV (NYA) C) NYCY (YVMV) O D) NVV (NYM) E) NYMHY (H05VV-F)4. What is the effect of laid cables in proximity to each other?What are the colors of the conductors in nonmetallic-sheathed cable for a. 2-wire cable? _______________, _______________ b. 3-wire cable? _______________, _______________, _______________