11.30. A Y-connected load, with Z = 10Z–60° N, ZR = 10/0° Q, and Z. = 10Z60° Q, is connected to a three- phase, three-wire, CBA system having effective line voltage 147.1 V. Obtain the line currents I, I, and I. 11.31. A three-phase, three-wire, ABC system with a balanced load has effective line voltage 200 V and (maximum) line current I, = 13.61/60° A. Obtain the total power. 11.32. Two balanced A-connected loads, with impedances 20/-60° Q and 18/45°, respectively, are connected to a = 212.1 /0° V. Obtain the phase power of each load. After three-phase system for which a line voltage is V, using the single-line equivalent method to obtain the total line current, compute the total power, and compare with the sum of the phase powers. BC

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11.30. A Y-connected load, with Z, = 10/–60° N, Z, = 10/0° N, and Z, = 10/60° Q, is connected to a three-
phase, three-wire, CBA system having effective line voltage 147.1 V. Obtain the line currents I,, Ip, and I.
11.31. A three-phase, three-wire, ABC system with a balanced load has effective line voltage 200 V and (maximum)
line current I, = 13.61/60° A. Obtain the total power.
11.32. Two balanced A-connected loads, with impedances 20/-60° N and 18/45°, respectively, are connected to a
three-phase system for which a line voltage is Vpc= 212.1/0° V. Obtain the phase power of each load. After
using the single-line equivalent method to obtain the total line current, compute the total power, and compare
with the sum of the phase powers.
Transcribed Image Text:11.30. A Y-connected load, with Z, = 10/–60° N, Z, = 10/0° N, and Z, = 10/60° Q, is connected to a three- phase, three-wire, CBA system having effective line voltage 147.1 V. Obtain the line currents I,, Ip, and I. 11.31. A three-phase, three-wire, ABC system with a balanced load has effective line voltage 200 V and (maximum) line current I, = 13.61/60° A. Obtain the total power. 11.32. Two balanced A-connected loads, with impedances 20/-60° N and 18/45°, respectively, are connected to a three-phase system for which a line voltage is Vpc= 212.1/0° V. Obtain the phase power of each load. After using the single-line equivalent method to obtain the total line current, compute the total power, and compare with the sum of the phase powers.
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