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the operation of an induction machine here used as an asynchronous generator her connected to a 3 phase electric system.
a) What does asychronous mean in this context?
b) How is it possible to improve the operation of this generator on the system?
c) At what range of speeds approximately must an induction machine be operated to perform as a generator?
Step-down transformer
The basic column control system shown in Figure is somewhat more complicated than the basic neutralizer control system
Why developing software for wireless devices is challenging? List and briefly describe the two (2) reasons given in your textbook for why developing software for wireless devices is challenging.
Estimate the diffusivity of a spherically shaped protein with a MW of 36,000 in water at 37oC.
Suppose you are the supplier and can produce 20 units now but cannot start production on the second 20 units for two months. What price would you try to negotiate for the last 20 units?
Efficiency in a power transformer is 98.6 percent when loaded such that its copper losses are five times its core losses. Calculate the per unit resistance of this transformer.
A simple low-pass discrete-time filter is characterized by the following linear difference equation: y[n] = f y[n-1] +(1- f) x[n] , with 0 1 Draw and clearly label an adder-gain-delay diagram for the filter. using the same difference equation from a..
In US, electric wires are classified based on their gauge numbers. The larger the gauge number is, the smaller the diameter of the cross-section of the wire becomes. You are given four different types of wire with gauge numbers 1, 3, 7, and 8.
a) what is the frequency f, of the ac circuit signal b) what is the period, T, of the ac circuit signal what is the angular velocity/frequency (omega), of the ac signal if v(t) = 24 cos (2pie 500t).
A shunt regulator utilizing a zener diode is biased on through a 100 resistor. Determine the change in the regulated output voltage for the two situations below: a) VI changes +2.0 V, ILoad constant b) ILoad changes +100 mA, VI constan..
What is the minimum number of bits required to represent each of the following decimal numbers: 10, 1000, 100,000, and 1,000,000?
Explain the function of the HMI in a SCADA system.
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