A three phase 400 kVAr, 480 V capacitor bank is comprised of ten steps of 40 kVAr each. The lead inductance of the cabling between steps is 6 microHenries. Determine the inrush current into the last step to be energized
A three phase 400 kVAr, 480 V capacitor bank is comprised of ten steps of 40...
A three phase 400 kVAr, 480 V capacitor bank is comprised of ten steps of 40 kVAr each. The lead inductance of the cabling between steps is 6 microHenries. Determine the inrush current into the last step to be energized.
1) (15 marks) A 400 kVAr, 480 V capacitor bank is comprised of ten steps of 40 kVAr each. The lead inductance of the cabling between steps is 6 micro Henries. Determine the inrush current into the last step to be energized 1) (15 marks) A 400 kVAr, 480 V capacitor bank is comprised of ten steps of 40 kVAr each. The lead inductance of the cabling between steps is 6 micro Henries. Determine the inrush current into the last...
Please show steps to solving. 1) A 220 V/60 Hz three-phase source supplies two loads. The first load is A-connected presenting P = 5 kW and Q=-3 kVAr. The second is Y-connected presenting a resistance of 8 Q and an inductance of 16 mH. Compute: a. The magnitude of the current passing in each phase/element of load 1 (A-connected.) b. The (three-phase) active power consumed by the second load (Y-connected). c. The (three-phase) apparent power supplied by the source. (15...
A 220 kW load having 0.8 lagging power factor is supplied from a 600 V (line to line) three-phase supply. A bank of power factor capacitors is delta connected Q2. (a) Draw neat schematic diagram showing the connection of the capacitor bank in Delta connection. (b) Determine the kVAR rating of each individual capacitor needed to bring power factor to 0.9 (c) Determine the capacitance of each capacitor in μF.
please solve the question in pu sysyem !!!! Solvein pu sysvem 2-10. A 13,800/480 V three-phase Y-A-connected transformer bank consists of three identical 100-kVA 967/480-V transformers. I is supplied with power directly from a large constant-voltage bus. In the short-circuit test, the recorded values on the high-voltage side for one of these transformers are Isc 12.6 A Pc3300 w (a) If this bank delivers a rated load at 0.85 PF lagging and rated voltage, what is the line-to-line voltage on...
Problem 84: A given load is driven by a 480 V six-pole 150 hp three-phase synchronous motor with the following load and motor data. Determine the voltage Ē, necessary for this operating condition. Note: assume that the rotational loss torque is negligible. Load: T1 = 0.05* w Nm Motor: Ey = 400 V; Xa = 11 Answer: Ēr = 4002-17.36° V Problem 85: A given load is driven by a 480 V four-pole 150 hp three-phase synchronous motor with the...
A line voltage of 480 V and a line current of 225 mA are supplying a balanced, 3-ф load. If the load for each phase consists of a 1 k(2 resistor in series with a 3.7 μF capacitor: is the load Δ-or Y-connected? give the magnitudes of the phase current and phase voltage a. b. A line voltage of 480 V and a line current of 225 mA are supplying a balanced, 3-ф load. If the load for each phase...
QUESTION 3 3.1 A single-phase 39 kW, 380 V, 50Hz induction motor operates on full load with an efficiency of 89% and at a power factor of 0.809 lagging. Three identical parallel- connected capacitors are used to raise the power factor to 0.96. 3.1.1 Calculate the kVAr rating of the capacitor bank. (9) 3.1.2 Calculate the capacitance of each capacitor. (6) [15]
If a 25-kW (rated) wind turbine has a three-phase, 480-V generator, what minimum size wire will be needed for each phase to connect the wind turbine to a load that is 50 m away? Remember, you need to count the length of wire down the 25-m tower. Peak power can be 30 kW. Calculate maximum current and reduce it by a factor of 1.7 because the system is three-phase. Each leg (wire) of the three-phase system carries 1/3 of the...
Please show detailed steps. Thanks Problem # 1: Three Phase Power [35 points] A three-phase substation bus supplies three wye-connected three phase loads that are connected in parallel through a three-phase feeder with an impedance of 0.3 30 per phase Load 1 draws 75kVA at 0.866 lagging power factor, load 2 draws 45 kW at 0.70 leading power factor and load 3 draws 20 kVAR at 0.85 lagging power factor. The line-line voltage at the load is 460V Take the...