Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN: 9781305632134
Author: J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher: Cengage Learning
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- 8. The total power supplied to a balance delta load is found in the same way as for a balance wye load. True False Either Neither 12. A load of 20 + j35 ohms is connected across a 220 V, 60 Hz supply. Find the reactive power of the load in var. 595 2420 1042 1382 13. A type of DC source where the characteristic output voltage has perfect unidirectional waveform and is based on electrochemical principle. Generator Inverter Converter Battery 14. Calculate the Rf of a circuit whose impedance is 20+j35 and current of 2A. 0.86 0.91 0.50 0.71 15. What capacitor shall be installed in parallel with a circuit to achieve a unity power factor if the reactive power of a circuit is 200VARS and the voltage is 100V. 80.45 microfarad 53.05 microfarad It's already in unity 62.45 microfaradarrow_forwardIf, in one (360 degrees), all of the instantaneous power falls under positive loops (no negativeloops), the load must be:a. A resistorb. An inductor or capacitorExplain:arrow_forwardSuppose I have two peak phasor voltages, V, = 100245° and V, = 75Z-60°. Circle Your Choices: I. The frequencies associated with the phasors are (0 Hz, 60 Hz, 50 Hz, Unknown). II. The rms value of the first phasor is (100, 70.7, 141, 200) volts. III. If you want to add these two phasors, the frequencies must be (60 Hz, 50 Hz, The same, Integer multiples of a given frequency.)arrow_forward
- Please help with the solution.arrow_forwardA 60 Hz sinusoidal voltage v = 141sinwt is applied to a series RL circuit. The values of the resistance and the inductance are 3 ohms and 0.016 henry respectively. a) Compute the rms value of the current and its phase angle with respect to the voltage.b) write the expression of the instantaneous current.arrow_forwardA series circuit contains only a resistor and an inductor. The voltage V of the generator is fixed. If R = 12 and L = 4.5 mH, find the frequency at which the current is one-half its value at zero frequency. Note: The ac current and voltage are rms values and power is an average value unless indicated otherwise.arrow_forward
- can you doing this with detail explaination..thank you!arrow_forwardFor a capacitive load: a) Investigate the complex power in terms of real power, reactive power, and power factor. b) Draw the phasor diagram c) Investigate the possibility of correcting the load power factor in details. Show diagrams, circuits, equations, etc.arrow_forwardA load has a leading power factor. a) Is it a capacitive or inductive load? b) Is the reactive power positive or negative? c) Repeat for a load with lagging power factorarrow_forward
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