- 11.11.1: What is the phase sequence of each of the following sets of voltages?
- 11.11.2: For each set of voltages, state whether or not the voltages form a ...
- 11.11.3: Verify that Eq. 11.3 is true for either Eq. 11.1 or Eq. 11.2.
- 11.11.4: Refer to the circuit in Fig. 11.5(b).Assume that there are no exter...
- 11.11.5: Repeat 11.4 but assume that the three-phase voltages are those desc...
- 11.11.6: a) Is the circuit in Fig. P11.6 a balanced or unbalanced three-phas...
- 11.11.7: a) Find in the circuit in Fig. P11.7. b) Find c) Find d) Is the cir...
- 11.11.8: Find the rms value of in the unbalanced threephase circuit seen in ...
- 11.11.9: The time-domain expressions for three line-to-neutral voltages at t...
- 11.11.10: A balanced three-phase circuit has the following characteristics: Y...
- 11.11.11: The magnitude of the line voltage at the terminals of a balanced Y-...
- 11.11.12: The magnitude of the phase voltage of an ideal balanced three-phase...
- 11.11.13: A balanced -connected load has an impedance of The load is fed thro...
- 11.11.14: A balanced, three-phase circuit is characterized as follows: Y- con...
- 11.11.15: An acb sequence balanced three-phase Y-connected source supplies po...
- 11.11.16: In a balanced three-phase system, the source is a balanced Y with a...
- 11.11.17: A balanced Y-connected load having an impedance of is connected in ...
- 11.11.18: A three-phase -connected generator has an internal impedance of Whe...
- 11.11.19: The impedance Z in the balanced three-phase circuit in Fig. P11.19 ...
- 11.11.20: For the circuit shown in Fig. P11.20, find a) the phase currents an...
- 11.11.21: A balanced three-phase -connected source is shown in Fig. P11.21. a...
- 11.11.22: The -connected source of 11.21 is connected to a Y-connected load b...
- 11.11.23: a) Find the rms magnitude and the phase angle of in the circuit sho...
- 11.11.24: A balanced three-phase source is supplying 60 kVA at 0.6 lagging to...
- 11.11.25: In a balanced three-phase system, the source has an abc sequence, i...
- 11.11.26: The line-to-neutral voltage at the terminals of the balanced three-...
- 11.11.27: A three-phase positive sequence Y-connected source supplies 14 kVA ...
- 11.11.28: A balanced three-phase distribution line has an impedance of This l...
- 11.11.29: The three tools described below are part of a universitys machine s...
- 11.11.30: Calculate the complex power in each phase of the unbalanced load in...
- 11.11.31: Show that the total instantaneous power in a balanced three-phase c...
- 11.11.32: The total apparent power supplied in a balanced, three-phase Y- sys...
- 11.11.33: A balanced three-phase load absorbs 150 kVA at a leading power fact...
- 11.11.34: At full load, a commercially available 100 hp, threephase induction...
- 11.11.35: A three-phase line has an impedance of The line feeds two balanced ...
- 11.11.36: Three balanced three-phase loads are connected in parallel. Load 1 ...
- 11.11.37: The output of the balanced positive-sequence three-phase source in ...
- 11.11.38: A balanced three-phase source is supplying 540 kVA at 0.96 pf lag t...
- 11.11.39: The total power delivered to a balanced threephase load when operat...
- 11.11.40: A balanced bank of delta-connected capacitors is connected in paral...
- 11.11.41: The two-wattmeter method is used to measure the power at the load e...
- 11.11.42: The wattmeters in the circuit in Fig. 11.20 read as follows: W1 40,...
- 11.11.43: In the balanced three-phase circuit shown in Fig. P11.43, the curre...
- 11.11.44: The line-to-neutral voltage in the circuit in Fig. P11.43 is 680 V,...
- 11.11.45: The two wattmeters in Fig. 11.20 can be used to compute the total r...
- 11.11.46: Derive Eqs. 11.56 and 11.57.
- 11.11.47: a) Calculate the complex power associated with each phase of the ba...
- 11.11.48: The two-wattmeter method is used to measure the power delivered to ...
- 11.11.49: The balanced three-phase load shown in Fig. P11.49 is fed from a ba...
- 11.11.50: a) Calculate the reading of each wattmeter in the circuit shown in ...
- 11.11.51: a) Calculate the reading of each wattmeter in the circuit shown in ...
- 11.11.52: a) Find the reading of each wattmeter in the circuit shown in Fig. ...
- 11.11.53: Refer to the Practical Perspective example: a) Construct a power tr...
- 11.11.54: Refer to the Practical Perspective example.Assume the frequency of ...
- 11.11.55: Choose a single capacitor from Appendix H that is closest to the ra...
- 11.11.56: Choose a single capacitor from Appendix H that is closest to the ra...
- 11.11.57: In the Practical Perspective example, what happens to the voltage l...
- 11.11.58: In the Practical Perspective example, calculate the total line loss...
- 11.11.59: Assume the load on the substation bus in the Practical Perspective ...
- 11.11.60: Assume in 11.59 that when the load drops to 180 kW and 480 magnetiz...

# Solutions for Chapter 11: Balanced Three-Phase Circuits

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ISBN: 9780133760033

Solutions for Chapter 11: Balanced Three-Phase Circuits

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Solutions for Chapter 11

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