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A balanced, three-phase, Y-connected source has a line voltage of 440 Vrms. The source frequency is 60 Hz. The balanced, three-phase loads have the following characteristics:Zy1: P1 = 15 kW and Q1 = +18 kVARZ?2: |S2|=21 kVA and PF2 = 0.500 laggingZ?3: PF3 = 0.2 lagging and Ip3 = 25 A rmsZy4: 1.67?60º O(note, power values are all three-phase quantities)
1. Determine each impedance and the current for each load.2. Determine the total line current, IaA.3. Determine the total complex power, average power, and reactive power delivered by the source to the loads.4. What is the power factor of the four loads combined?5. It is necessary to add a parallel load in the configuration to the circuit to minimize the magnitude of the line current. The line voltage and total average power delivered by the source may not change. What are the impedance and the component value of this load?6. What is the power factor of the additional load?7. What is the power factor of the five loads combined?
Each phase of the load consists of an impedance of 30 + j40 ohms. Find the line to neutral voltage phasors, the line to line voltage phasors , the power and the reactive power delivered to the load. Assume that the phase of Van is zero.
Project on LFC using tuned FOPID. I have considered a two area model. Need help regarding implementation of GA MATLAB code for a two area interconnected power system for LOAD FREQUENCY CONTROL.
Find the current that flows in a silicon bar of 10-µm length having a 5-µm x 4-µm cross section and having free electron and hole densities of 105 / cm³ and 1015 / cm³, respectively, when a 1 V is applied end-to-end. Use µn = 1200 cm²/V·s and µp =..
How big will be rated power of the motor if starting current at star-connection and phase to phase voltage of the supply 380 V is (150+17) A. the ratio of starting current for motor is 7 Ir efficiency factor is 0.85 but cos f =0.8
Design a circuit that has 4 inputs, WXYZ, and two outputs, f and g, where W is the most and Z is the least significant bit. The output f is asserted whenever the two-bit number WX is greater than the two-bit number YZ.
Suppose that two optical guides embedded in a substrate such as LiNbO3 are coupled as in the below figure and the transmission length Lo=10mm. If the coupling separation d is =10µm, n = 2.2, the operating wavelength is 1.3µm
A silicon diode with a breakdown voltage of 2000V that is conducting a forward current of 2000A is turned off with a constant diR/dt=250 A/s. Roughly estimate the time required for the diode to turn off.
DC supply=18v Motor Noload speed=9,000RPM 018V ton=40% -60% in 10ms in 5 steps a) Calculate B for each of the 5 steps b) calculate Vavrage over 10ms c)calculate no load speed d)draw a linear graph including the 5 steps over 10ms
A glass tube with a cross-sectional area of 9^-2 m^2 contains an ionizd gas. The densities are 10^15 positive ions/m^ and 10^11 free electrons/m^3. Under the influence of an applied voltage, the postive ions are moving.
A closed solenoid has a 100 turn coil. That core has a reluctance of 0.8(A-T/Wb). What current is needed in the coil to produce a flux of 200 Wb
A coil of wire contains 50 square turns, each one 5 cm long and 3 cm wide, and has a current of 30 A running through it. it is placed inside a magnetic field of 0.55 T at a 60 degree angle. what is the torque on the loop from the magnetic field
Each of these bands is split into two, allowing two operators. An operator is allocated 12.5 MHz in each direction. Each channel is allocated 30 kHz. If 21 channels are allocated for control, what is the total number of voice calls per operator.
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