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Situation You are the manager of a large warehouse that is required to be operational 24 hours a day. The electrical distribution system for the warehouse supplies power to various electrical loads such as lighting, heating, air conditioning, various motors, and miscellaneous office components. Your monthly electrical costs are calculated based on the apparent power your warehouse is consuming. Corporate management has directed you to reduce your total power consumption by 15-20% while still maintaining the warehouse operational 24 hours a day. Assume all non-essential electrical loads have been secured and the remaining electrical loads are required to be operating 24 hours a day. What are some of the measures you can take to reduce the overall warehouse power consumption? Can 100% efficiency ever be achieved in a sinusoidal power system? Support the answer using power factor in sinusoidal power systems.
The shunt capacitance of metal work ofeach insulator is 0.26C to earth and 0.15C to line. Find the stringefficiency if a guard ring increases the shunt capacitance to lineof the metal work of the lowest insulator to 0.35C.
A 6 pole round rotor 3 phase star connected synchronous machine has the following test results: Open circuit test: 4000 V line to line at 1000 rev/min, 50 A rotor current Short circuit test: 300 A at 500 rev/min, 50 A rotor current
The counter should be designed using D flip-flops and using the state equation method. (No credit will be given if the circuit is designed using the excitation table method.) Draw the final logic diagram.
A lossless line having an air dielectric has a characteristic impedance of 100 Ohms. Another line that is identical in dimensions to the air line is fabricated with the air displaced by a dielectric material have an \(\epsilon_{r}\) value of 4.
A 50 ohm transmission line is terminated to the load (60-40j) ohm. How far from the load, a short ckt stub of a fix length of λ/8 needs to be placed so the minimum voltage standing wave ratio (VSWR) between generator and stub achieved. Find the VS..
The feedback capacitance of an inverting amplifier is 10pF. What is the Miller capacitance at the input if the gain of the amplifier is -120 What is the Miller capacitance at the output of the amplifier
1. Calculate the sample values for one period. 2. What is the Nyquist sampling rate for this waveform 3. If the samples are converted to 8 bits, find bits for each sample values. 4. What is the quantization step value and quantization error
Three delta connected transformers are supplying a balanced reactive load. The primary line voltage is 480 volts and the primary line current is 20.5 amps. The load power used is 4.8kw. What is the power factor, the apparent power supplied
The poles, zeros and gain K of the transfer function G(s) are given below. Determine the function G(s) in its simplest form for each part. 1. Two complex poles at -1 +2j and -1-2j, and zero at -1 with K=12.
Design the 4-bit adder/subtractor circuit with look ahead carry circuit. Draw a logic circuit diagram of your circuit with pin numbers on all logic gates.
what are two fundamental advances in the circuit theory that were developed in the 19th century in response to the challenges of telegraphy?
A battery has a measured voltage of 12.6 V when the circuit switchis open. The internal resistance of the battery is 0.25 ohms. Thecircuit contains resistors of 6.8, 13.7, and 63 ohms connected in parallel a. Draw the circuit diagram
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