Is it possible for a 4-wire Delta system to be balanced withing 10% when serving a large quantity of single-phase 120V loads (line to neutral)
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Is it possible for a 4-wire Delta system to be balanced withing 10% when serving a large quantity of single-phase 120V loads (line to neutral)
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- Figure 4.37 shows the conductor configuration of a three-phase transmission line and a telephone line supported on the same towers. The power line carries a balanced current of 250 A/phase at 60 Hz, while the telephone line is directly located below phase b Assume balanced three-phase currents in the power line. Calculate the voltage per kilometer induced in the telephone line.Consider the balanced three-phase system shown in Figure 2.34. Deter mine v1(t) and i2(t). Assume positive phase sequence.Rework Example 3.12 for a+10 tap, providing a 10 increase for the high-voltage winding.
- Overhead transmission-line conductors are bare with no insulating cover. (a) True (b) FalseA single phase transmission line is delivering 460 kVA load at 10 kV. Its resistance is 6 Ω and inductive reactance is 6 Ω if the load power factor is 0.7 lagging. Determine the Current through the line Answer for part 1 Sending end voltage Answer for part 2 Sending end power factor Answer for part 3 Regulation of transmission line Answer for part 4 Efficiency of transmission line Answer for part 5A single phase transmission line is delivering 480 kVA load at 14 kV. Its resistance is 4 Ω and inductive reactance is 8 Ω if the load power factor is 0.9 lagging. Determine the Current through the line Answer for part 1 Sending end voltage Answer for part 2 Sending end power factor Answer for part 3 Regulation of transmission line Answer for part 4 Efficiency of transmission line
- A 24A, 240V single-phase load having a length of 100 ft is located 100 ft from a panel board and is wired with two 10 AWG conductors. What's the approximate voltage drop of the branch-circuit conductors? (a) 4.25V (b)5.97V (c)3% (d)5% Please answer in typing format please ASAP forPurely resistive loads of 24 kW, 18 kW, and 12 kWare connected between the neutral and the red, yellow and blue phases respectively of a 3-Φ, four-wire The line voltage is 415 V. Calculate: I. the current in each line conductor (i.e., IR, IYand IB); and the current in the neutral conductor.The sequence component line-to-line voltages of a three-phase, 4-wire system are the following: Vab0 = 60cis(-60); Vab1 = 80cis(-12); and Vab2 = 120 cis(40) volts. What is the magnitude of Vbc in volts?
- The resistance and reactance of the single-phase 60Hz transmission line conductors are 8.8 ohm and 10.4 ohm respectively. The transmission line delivers 55MW at a power factor of 0.78 lagging to the load with 50kV receiving end voltage. Determine the following a) The inductance of the transmission line in mH Answer for part 1 b) Sending end power factor Answer for part 2 c) Percentage voltage regulation Answer for part 3 d) Percentage Efficiency Answer for part 4Non-Reactive Loads of 10kW, 20kW and 12kW are connected between the neutral and the red, yellow and blue phases respectively of 3-phase, 4 wire . The line voltage is 400.a. Calculate the current in each line andb. The current in the neutral,A three-phase four-wire system has unbalanced connected loads that draws 7 amps from line A, 16 amps from line B, and 9 amps from line C. What is the current flowing in the neutral conductor?
