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11.4 Refer to the circuit in Fig. 11.5(b). Assume that there are no external connections to the terminals a, b, c. Assume further that the three windings are from a three-phase generator whose voltages are those de- scribed in Problem 11.2(b). Determine the current circulating in the A-connected generator.

11.4 Refer to the circuit in Fig. 11.5(b). Assume that there are no external connections to the terminals a, b, c. Assume further that the three windings are from a three-phase generator whose voltages are those de- scribed in Problem 11.2(b). Determine the current circulating in the A-connected generator.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Need help with question 11.4. Using part b from number 2. 

Section 11.2 11.4 Refer to the circuit in Fig. 11.5(b). Assume that there are no external connections to the terminals a, b, c. Assume further that the three windings are from a three-phase generator whose voltages are those de- scribed in Problem 11.2(b). Determine the current circulating in the A-connected generator. Rw V jX R (a) a V jX Vb (b) Figure 11.5 A A model of a three-phase source with winding impedance: (a) a Y-connected source; and (b) a A-connected source.
Transcribed Image Text:Section 11.2 11.4 Refer to the circuit in Fig. 11.5(b). Assume that there are no external connections to the terminals a, b, c. Assume further that the three windings are from a three-phase generator whose voltages are those de- scribed in Problem 11.2(b). Determine the current circulating in the A-connected generator. Rw V jX R (a) a V jX Vb (b) Figure 11.5 A A model of a three-phase source with winding impedance: (a) a Y-connected source; and (b) a A-connected source.
%3D %3D 11.2 For each set of voltages, state whether or not the voltages form a balanced three-phase set. If the TM set is balanced, state whether the phase sequence is positive or negative. If the set is not balanced, explain why. 180cos 377t V, 180 cos(377t- 120°) V, 180 cos(377t-240°) V. 180 sin 377t V, 180 sin(377t + 120°) V, 180 sin(377t- 120°) V. ILLE 400 sin(377r + 210°) V, 400cos(377t - 30°) V. LLE 10002 01 =201 cos(2000r + 150°) V, 200 cos(2000t + 270°) V. 208 cos(630f + 42°) V, 208cos(630r -78°) V, 208cos(630t 201") V. 240 cos 377t V, 3 240 cos(377t 120°) V, ve3D240 cos(397t + 120°) V.
Transcribed Image Text:%3D %3D 11.2 For each set of voltages, state whether or not the voltages form a balanced three-phase set. If the TM set is balanced, state whether the phase sequence is positive or negative. If the set is not balanced, explain why. 180cos 377t V, 180 cos(377t- 120°) V, 180 cos(377t-240°) V. 180 sin 377t V, 180 sin(377t + 120°) V, 180 sin(377t- 120°) V. ILLE 400 sin(377r + 210°) V, 400cos(377t - 30°) V. LLE 10002 01 =201 cos(2000r + 150°) V, 200 cos(2000t + 270°) V. 208 cos(630f + 42°) V, 208cos(630r -78°) V, 208cos(630t 201") V. 240 cos 377t V, 3 240 cos(377t 120°) V, ve3D240 cos(397t + 120°) V.
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