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A single-phase transformer rated at 3000 kVA, 69 kV/4.16 kV, 60 Hz has a total leakage reactance Xp of 127 ohm, referred to the primary side. Calculate: a. The rated primary and secondary currents b. The secondary voltage if it is connected at full load of 2000 kW c. The voltage regulation from no-load to full load. Voltage regulation is given by: (E(no-load)-E (full-load))/E(full-load). d. The primary and secondary currents if the secondary is accidentally short circuited
A production plant has a requirement for a counter that will count 4,000 times before recycling and starting over. How many flip flpos are required?
A 150 MVA, 24 kV, 123% three-phase synchronous generator carries the rated load at a power factor 0.83 (lagging). Calculate the necessary excitation voltage and input complex power.
A waveform generator is connected to an op-amp which has been setup as a voltage follower. The voltage follower is then loaded with a 50 Ohm resistor. What output impedance setting should the waveform generator use
how to evaluate power dissipated in the components of an RLC series circuit by using matlab software?
A uniform magnetic field is applied perpendicular to the plane of a 60-turn circular coil with a radius of 6.0 cm and a resistance of 0.60 ohms. If the magnetic field increases uniformly from 0.20 T to 1.8 T in 0.20 s
An a.c. voltage, V, comprises of a fundamental voltage of 100 V rms at a frequency of 120 Hz, a 3rd harmonic which is 20% of the fundamental, a 5th harmonic which is 10% of the fundamental and at a phase angle of 1.2
Line A extends from (2,2, 0) to (-2, 2, 0) and Line B extends from (2, -2, 0) to (-2, -2, 0). Each has a linear charge density l = 1 nC / m. You want to calculate the magnitude and direction of the electric field due to the two line charges for al..
stochastic message signal, m(t), is transmitted down a (noiseless) cable channel by PCM, using an 8-bit code. If the ambient signal is equally likely to lie anywhere between its two extremes, (+/- mp), calculate the ration of the mean squared sign..
Explain the function of the HMI in a SCADA system.
Calculate the electrostatic energy that is stored in the structure if the intermediate space is filled with a dielectric whose relative dielectric constant is 10 and a voltage is applied between the conductors creating an electric field.
A wind speed sensor generates an output voltage that ranges between 10 to 55 mV when the wind speed varies from 0 to 120Km/Hr.The output of the sensor is connected to an Analog to Digital Converter (ADC) through a signal conditioning circuit.
Consider the following matrix of expected profits (in units of $1K) versus potential future material price scenarios (P1 - P5), for five different designs (D1 - D5): P1 P2 P3 P4 P5 D1 10 20 30 40 50 D2 20 25 25 30 35
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