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explian why a single phase IM is not self starting.descibe two ways that can make a single phase IM self starting?compare tha air gap mag filed produced bt 1 phase IM and 3 pahse IM?
The load on a 460-V, 60-Hz, Y-connected, balance three-phase source consists of three equal Y-connected impedances of 100+j100 ohms, and three equal Delta-connected impedances of 300-j300 ohms. Compute the line current, power, and power factor for..
An autotransformer with a total of 600 turns has its secondary windings embracing 200 turns. The 600 turns are connected to a 60-Hz, 2400-V driving voltage. A load connected to the secondary draws 4.8-kVA at 0.6 power factor lagging.
implement a circuit that generates VGA signals to draw a blue screen on your monitor in a resolution of 640x480. The following materials provide detailed descriptions of how VGA signals operate and some hints on how to design the VGA controller
A doorbell is connected to a transformer whose primary contains 3000 turns and which is connected to 120 VAC. If the doorbell requirs 0.2 A at 10 V, find the number of turns necessary for the secondary winding and the current that flows in the pri..
Write a main program to call a procedure that converts the Fahrenheit temperature value stored in the location labeled TdegF to its Celsius equivalent. The range of temperatures is 32F to 212F. The procedure stores the converted temperature in loc..
Write a declaration for a two-dimensional array named temperature reads. (For simplicity, assume that a month has 30 days.) The rows of the array should represent days of the month; the columns should represent hours of the day.
How high of a signal source impedance can exist and still provide an output signal from an inverting amplifier circuit. What effect would the signal source impedance have on the non-inverting amplifier.
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..
design a stable optical cavity using one mirror with infinite radius of curvature and 95% reflectivity. We want the cavity to 1 m long. Assume the second mirror is 100% reflective. a. Design the cavity such that g1g2 product is 0.5
The following test data were taken on a 110-KVA, 4400/440- volt, 60-Hz transformer: Short Circuit Test: P= 2000w, I = 200 amp, V = 18v Open Circuit Test: P=1200w, I= 2 amp, V = 4400v Calculate the voltage regulation of this transformer when it suppli..
A 400-kV transmission line has a hot-weather power rating of1400 MVA. If the transmission line is operating in cold weather, itis rated for 2200 MVA (at 400 kV). The transmission line is undercold weather conditions, and the operating voltage is 3..
a)Write the diffrenece equation for a four-term moving average filter. b) The input x[n] = cos(n pi/6)u[n] is passed through the four-term moving average filter. Solve for the first 5 samples of the output.
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