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An automatic automotive spray painting system consists of conveyors, spraying, dustand overspray extraction fans with electrostatic and water walls, finishing with bakingovens. This system is connected to a 415V, 50 Hz three phase and has been divided into three balanced loads, as follows:
LOAD 1 (STAR): 15 kVA at a power factor of 0.60 lagging;LOAD 2 (DELTA): 24 kW at a power factor of 0.55 lagging;LOAD 3 (DELTA): ZRW = ZWB = ZBR = Unknown impedance, but components are known to be balanced.
The system draws a total apparent power of 44kVA at a power factor of 0.82 lagging from the supply.
Determine:
(i) the STAR capacitance required to correct the overall supply Power Factor to 0.87 lagging.(ii) The total line current drawn from the supply before power factor correction and after.(iii) LOAD 3 apparent power.(iv) LOAD 3 impedances ZRW = ZWB = ZBR.
The counter must stop at a value which is defined by using the 8 slide switches. Use the discrete LEDs as the output to validate the counter. The counter should run when a push button ‘run' is being pressed.
An electric heating element is connected to a 110 v circuit and a current of 3.2 A is flowing through the element. How much energy is used up during a period
Determine the maximum and minimum spectral frequencies received from a stationary GSM transmitter that has a center frequency of exactly 1950.000000 MHzassuming that the receiver is traveling at speeds of.
An EKG signal is contaminated by 60-Hz noise. Design a bandstop filter to remove this noise while limiting distortion of the EKG signal. Sketch the magnitude and phase response.
a positive-sequence shunt admittance y= j4.4* 10-6 S/km. for this line if it has 70% shunt reactive (inductors) compensation and 40% series capacitive compensation. Half of this compensation is installed at each end of the line.
A selective-repeat (SR) data link layer protocol uses 4 sequence bits to number it's frames. The source, C starts from frame 0 and proceeds following the Sr protocol. Let us start analyzing the frame/ACK transmissions when the first outstanding fr..
Basics problems of Induction motor, The frequency of the induced rotor currents in the rotor of a 60 Hz induction, machine is 2 Hz. Furthermore, the fields in the air gap turn at -40 rpm with respect to the rotor.
Important information about Frequency Divider, Design a frequency divider circuit that will output three pulse frequencies: 25 kHz, 10kHz, and 2.5kHz. Assume that only a 150 kHz CMOS compatible signal is available for the divider input
An AM broadcast receiver's pre-selector has a total effective Q of 90 to a received signal at 1180 kHz and uses an IF of 455 kHz. Calculate the image frequency and its dB of suppression.
AN SSB signal is generated by modulating a 5 MHz carrier with a 400 Hz sine tone. At the receiver, carrier is reinserted during demodulation, but its frequency is 5.00015 MHz rather than exactly 5 MHz. How does this affect the recovered signal
A solar pond consists of a thin layer of fresh water floating on top of a denser layer of salt water. When the salty layer absorbs sunlight it warms up and much of that heat is held there by the insulating effect of the fresh water above it
Use specific details to support your answer. Then evaluate the relative success of democracy and capitalism in Russia, after the end of the Cold War.
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