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Two single phase transformers are connected in parallel with the following parameters.
Transformer A, rated at 60 kVARc=250 k OhmReq=25 OhmXm=45 k OhmXeq=150 Ohm
Transformer B, rated at 30 kVARc=400 k OhmReq=30 OhmXm=90 k OhmXeq=300 Ohm
What is the total input current and power factor when supplying a combined seconday load current of 250A at 0.85 PF lagging if the output terminal voltage is 125V?
An input signal of 10V at 0degrees and a frequency of 1592Hz is applied to a series RLC circuit with resistor R=100ohm, inductor L= 40mH, and a capacitor C=0.5uF. The value of the total circuit complex impedance is
Refer to the Wheatstone Bridge diagram. If R1=1ohm, R2=111ohm, Runknown= 1ohm, R3 is set at 1Kohm, and the battery is 9V:What is the current flowing through the galvanometerohm Use 60ohm for the internal galvanometer resistance in calculations.
If the resistance of dry skin is 5 k? and accidental contact is made with a conductor that is at a voltage of 120 V, how much current can flow through the human conducting path. If contact with this same conductor is maintained for 10 s
A 2000 hp, 1.0 power factor three phase Y connected 2300V, 30 Pole, 60Hz; synchronous motor has a synchronous reactance of 1.95 ohms/phase. For this problem all losses may be neglected.
An AC synchronous motor operates at 1200 rpm on a 60 hz, 240 Vrms supply. The supply is changed to 50 hz, 240 Vrms, What is the mechanical rotational velocity when the motor reaches steady state
A liquid level system converts a 4-10 m level into a 4-20mA current. Design a three mode controller (PID im assuming) that outputs 0-5 volts with 50% PB, 0.03 min integration time, and 0.05 min derivative time. Fastest expected change time is 0.8 ..
1) What does an electron in the valence band need to go to the conduction band in a direct bandgap material 2) Si and C are both elements in Group IV ogf the periodic table. What property makes one a semiconductor and the other an insulator
A 1000V, 50 hp compound motor runs at a speed of 750 rpm at full load. The armature, series and shunt field resistances are 0.5 ohm, 1 ohm, and 200 ohm, respectively. The motor efficiency at this condition is 80%. Calculate the motors starting cur..
Sketch the Capacitance-Voltage characteristics for both devices based on part (d) by giving appropriate labeling to the voltage and capacitance axis. You may assume high f measurements.
what is the range of sampling frequencies you can use such that you don't violate Nyquist theorem and still meet or exceed the needed resolution when you perform the FFT operation on the full set of collected data
Determine the transfer function for a first order low pass filter with a cutoff frequency of 1000 radians/sec (note radians and not Hertz) and a pass band gain of 1 using the following types. (a) Butterworth type
Assume a 20 V voltage drop occurs across an element from terminal 2 to terminal 1 and that a current of 4A enters terminal 2. (1) Based on passive network convention, state whether the element is absorbing or delivering power.
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