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Two parallel connected 10 kV to 120 V 60 Hz single phase transformers supply a varying load.
Transformer 1, Rating 60 kVA, parameters referred to primary:Rc=250 k OhmReq=25 OhmXm=45 k OhmXeq=150 Ohm
Transformer 2, Rating 30 kVA, parameters referred to primary:Rc=400 k OhmReq=30 OhmXm=90 k OhmXeq=300 Ohm
Assuming 0.85 PF, what is the maximum load current that can be supplied by this parallel combination of transformers wihout overloading either of them?
Draw a strain gauge circuit and its external components to attach to a conveyor mounted only at the ends to measure the load at the center of the conveyor. What type of testing would you need to do to establish a baseline and calibration curve for..
What is the peak frequency deviation of the FM signal? What is the FM improvement in dB?
A certain load takes 10kW at 0.5pf lagging when connected to a 230V, 60Hz source. The supply company charges a penalty when the power factor fall below 0.8. What size of capacitor must be used in order to avoid penalty
Assume white Gaussian noise of zero means and power spectral density No/2 is added to the signal at the receiver input. Find the expression for SNRout (SNR at the output of the receiver)
Find the stall current, max speed in rotations per minute (RPM), and armature current at a speed of 480.769 radian/s (4591.006 RPM). Discuss the relationship (if any) between the armature current at max speed
Sketch a time diagram similar to Figure 3.22 illustrating what happens when a frame gets lost between the sender and the receiver. It should be clear from your diagram how the protocol handles this situation.
The signal transmitted by a Base Station has a power of 1 mW at a distance of 1 m from the transmitter. Measurements have shown that the propagation exponent for the path loss is n=3 up to a distance of 1 km and n=4 beyond that.
A single phase transformer has the following rating: 120 kVA, 2000 V/100 V, 60 Hz with 1000 primary turns. Determine (A) the maximum flux. (B) given a maximum flux density of 0.25 T, the cross-sectional area of the core.
Write an assembly language program that initialize data X to 0, and then when input device inputs data it is added to X and when output device asks for data the value of X is output. a) Use Programmed I/O Mode of data transfer for inputting and out..
Design a summing amplifier that produces an output Vout = (5/2)V1+(5/3)V2 - 4V3 . Draw the complete schematic and pick the appropriate component values. The smallest resistor in the circuit should be R
The detector will take in numbers from 1510 to 010 encoded in binary labeled [N3:N0] with N3 being the most significant bit. The output will be asserted when the decimal value of the input is a prime number (i.e., 2,3,5,7,11,13). The output is de-..
2. Design an amplifier with a gain of 2 using Multisim. 3. What is the phase shift between the input and output signals of an inverting op amp 4. What is the phase shift between the input and output signals of a non- inverting op amp
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