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A 30-kVA 8000/230-V distribution transformer has an impedance referred to the primary of 20 + j100 W. The components of the excitation branch referred to the primary side are and
(a) If the primary voltage is 7967 V and the load impedance is ZL = 2.0 + j0.7 W, what is the secondary voltage of the transformer? What is the voltage regulation of the transformer?
(b) If the load is disconnected and a capacitor of -j3.0 W is connected in its place, what is the secondary voltage of the transformer? What is its voltage regulation under these conditions?
Compare this with the shift when the source approaches the observer head-on.
When writing or speaking about reactance, how do we distinguish inductive reactance from capacitive reactance. How are resistances, inductive, and capacitive reactance treated in calculations of AC voltage and current.
Design, simulate and program a 4-bit, 8-function ALU to implement the operations F2 F1 F0 Output Function S0 - S4 0 0 0 Output = A Input S = A 0 0 1 Output = A Complement S = NOT A 0 1 0 Output = A Plus B S = A + B0 1 1 Output = A Minus B S = A - B
The chosen switch to be used in an inverter is an IGBT (Insulated Gate Bipolar junction Transistor), the voltage-controlled drive side of a MOSFET with the power side of a power transistor.
In the 3-Op Amp Instrumentation amplifier, all the resistor values are the same with the exception of RG which determines the gain. Is it possible to have additional gain at the output Op Amp of Rf/Rin
a 350° pot is connected to a shaft through a 3:1 gear ratio a. What is the maximum angle the shaft can turn b. What is the maximum difference in degrees from where the shaft is and where the pot reports is to be
a signal st is defined as st 4cos3pit 5cos21pit volts. the signal st is sampled using ideal sampling with a
The voltage drops across three resistors in series are measured to be 10.0V, 15.0V, and 25.0V. If the largest resistor is 47.0 ?, what is the value of the smallest resistor?
Find the sinusoidal expression for e. - Find the value of the capacitance C in microfarads. - Find the average power loss in the capacitor.
pick two specific energy assets such as a specific power plant natural gas processing plant oil tanker oil production
A step down transformer is supplied with 100 V on the primary, from a source capable of only 1 A. if the voltage on the secondary of the transformer is 20 V, what is the current available from the secondary
Potential in infinite channel. A two-dimensional geometry consists of four infinitely long plates, shown in cross section in Figure 5.52. For the given potential, calculate the electric potential between the plates.
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