A load operating at 3,500 V rms draws 24 A rms at a power factor of...
A single Phase load draws 10 kW from a 410 V line at a power factor of 0.707 lagging. Determine: (a) The rms current (b) The reactive power required by the load (c) We want to correct the power factor to be 0.9 lagging by adding a capacitor, what will be the new reactive power? (d) draw the power triangle with the old and new reactive powers
A 110-V rms,60-Hz source is applied to a load impedance Z The apparent power entering the load is 120 VA at a power factor of 0.507 lagging References eBook& Resources Learning Objective: Understand apparent power power and power factor Section Break Difficulty Medium value 10.00 points Calculate the complex The complex power is VA. Hints References eBook & Resources
A plant draws 380 A from a 370-V rms line to supply a load with 110 kW. What is the power factor of the load? the tolerance is +/-2%
A single-phase electrical load draws 1000KVA at 0.8 power factor lagging. a) Find the real and reactive power absorbed by the load. b) Draw the power triangle. c) Determine the KVAR of a capacitor to be connected across the load to raise the power factor to 0.95.
(4) Three single-phase AC loads draw power from the same 12020으 kms source. Load 1 draws 120 w at a lagging PF of 0.75, Load 2 draws 75 VA at a leading PF of 0.6 and Load 3 draws 100 VA at a leading PF of 0.8. Determine the complex power consumed by each load. Calculate the rms current phasor for each load. a. b.
Question 1 Load and Power Factor (Constant Rotor Field, E < V) Load and Power Factor (Constant Rotor Field, E = V) Load and Power Factor (Constant Rotor Field, E > V) Eno-load = V Eno-load 12 12 12 min = ? Omar = ? Amin = ? emax = ? Amin = ? emax = ? V : no-load Pmax Emar-load Emar-load Emax-lond chteh chteh chteh With reference to Chapter 4: Slides 22-24, determine the range of power factors...
A computer draws an rms current of 3.90 A at an rms voltage of 120 V. The average power consumption is 220 W. What is the power factor?
2. [15 pts total] A single-phase load draws 1 MW at 0.75 power factor lagging. a. [10 pts] Determine the power required from an added parallel capacitor to bring the power factor of the parallel combination up to 0.95 lagging. b. [05 pts) Determine the power required from an added parallel capacitor to bring the power factor of the parallel combination up to 0.95 leading.
5. The first load (zl) is drawing an apparent power of 7kVA at power factor of 0.82 lagging. The second load (22) is drawing 25kW of real power at power factor of 0.24 lagging. The third load (23) is drawing 23.25kW of real power and supplying 19kVAR of reactive power. Find the complex power from the voltage source and the power factor of the voltage source. vg(t) =159cos(337t).
1. A 480 V (rms) source supplies power to two loads connected in parallel. The first load draws 80 kW and 30 kVAR. The second load draws 100 kVA at a power factor of 0.6 lagging. a) Draw the power triangle for the first load and determine its power factor; b) Determine the current (both magnitude and phase, using the source voltage as the phase reference) drawn by the first load; c) Draw the power triangle for the second load...