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A single phase transformer rated 150kVA Vp=7.2kV Vs=240V
•Transformer secondary winding leakage reactance Xs= 0.07 ohm•The resistance Rs = 0.025 ohm on secondary side•Transformer magnetizing reactance xm = 850 ohm, core resistance Rc = 2450 ohm on primary side•Primary windings leakage Xp = 0.25 ohm, Rp= 0.15 ohm•Transformer load = 120 KVA pf = 0.81 lagging
Determine:
A)Load current and transformer secondary voltage when load V=235V
B)Transformer primary voltage and current
C)Magnetizing current
D)Transformer supply voltage and current.
You have three receivers: a superhet, a direct conversion, and one that downconverts to a baseband signal. You're operating in 700-750MHz. Pick a set of analog IF frequencies and find required LO frequencies.
on a 150-q lossless transmission line the following observations were noted distance of first voltage minimum from
(a) A student would like to find the relative dielectricconstant of a non-magnetic medium. He transmitted a plane EM waveat 10GHz inside the medium and found that the propagating wave hasa wavelength of 1.5 cm. What is the relative dielectricconst..
The following test data were obtained from short-circuit and open circuit tests of a 5-kVA, 2400-600V, 60Hz transformer. Voc=600V Ioc=3.34A Poc=484W Vsc=76.4V Isc=20.8A Psc=754W
A series circuit consists of a voltage source and four resistors (R1=1k-ohm; R2=30-ohm; R3=470-ohm; R4=2k-ohm). The resistor of 1k-ohm has a voltage of V1=3V across its terminals. a) Find the current out of the voltage source.
4-pole , 500 volts shunt motor has a simplex lap winding placed in 80 solts , each cotain 30 conductors . The shunt filed resistance and the armature resistance are 250 and 0.005 ohm respectively . the flux per pole is 0.001 webers
Charges +Q and +3Q are separted by a distance 2m. A third charge is located such that the electrostatic system is in equilibrium. Find the location and kthe value of the third charge in terms of Q.
Explain charge sharing in dynamic circuits. For a 3-input dynamic NAND gate, discuss charge sharing, and explain the design requirements under which the gate operates correctly in the presence of charge sharing.
The amount of heat Q needed to turn a mass, m, of room temperature ( T_1) water into steam at 100 Celcius. ( T_2) can be found using the specific heat, c, of water and the heat of vaporization, H_v, of water at 1 atmosphere of pressure.
Find the impulse response, h[n], for the difference equation - Determine the impulse response by first finding the unit step response, ys(t), for the following system
Design a discrete time Echo filter in order to process the demo signal Splat, using Fs = 8192 Hz. The filter should pass the original signal unchanged and the first echo should be located at 0.7 seconds with 10% attenuation
What is the maximum allowable ampacity of a #2 AWG THHN copper conductor connected to a breaker having 60 C termimal ratings
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