A three-phase, three-wire Y-Y system a balance load. The following information are given of the system: Impedance of each line: 209+j4092 Power delivered to the load: 12KW at 13kV (Line voltage at load side) Power factor at the load side: 0.7 (lagging) Determine: i. ii. iii. iv. V. The magnitude of the line currents. The magnitude of the line and phase voltages at generator side. The total average power delivered by the generator. Power factor from the generator side. Efficiency of the system.
A three-phase, three-wire Y-Y system a balance load. The following information are given of the system: Impedance of each line: 209+j4092 Power delivered to the load: 12KW at 13kV (Line voltage at load side) Power factor at the load side: 0.7 (lagging) Determine: i. ii. iii. iv. V. The magnitude of the line currents. The magnitude of the line and phase voltages at generator side. The total average power delivered by the generator. Power factor from the generator side. Efficiency of the system.
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Transcribed Image Text:A three-phase, three-wire Y-Y system a balance load. The following information are given of the
system:
Impedance of each line: 209+j4092
Power delivered to the load: 12KW at 13kV (Line voltage at load side) Power factor at the load
side: 0.7 (lagging)
Determine:
i.
ii.
iii.
iv.
V.
The magnitude of the line currents.
The magnitude of the line and phase voltages at generator side.
The total average power delivered by the generator.
Power factor from the generator side.
Efficiency of the system.
Expert Solution
Step 1.
Given data:
3-phase, three-wire, Y-Y system with a balanced load.
The impedance of each line, Z=20+j40 ohm
At load side: power P=12 kW, 13kV, power factor is 0.7 lagging
Find:
The magnitude of the line current
The magnitude of the line and phase voltage at the generator side.
Average power delivered by the generator.
Power factor at the generator side.
The efficiency of the system.
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