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A 4.12 kV, 60 Hz, 3000-hp 0.8-PF-leading, Δ-connected, three- phase synchronous motor has a synchronous reactance of 1.1 per unit and an armature re at rated voltage with a line current of 300 A at 0.85 PF leading, what is the internal generated voltage per phase inside this motor? What is the torque angle δ?
A practical source delivers 50mA to a 300Ω load. The source delivers 12V to a 120Ω load. Find the maximum power available from the source.
Design a datapath which will do one of the following. (1) add the value in register A to the calue in one of the registers R0 through R3 and store the result back in A, (2) subtract the value of one of the four registers R0 through R3 into registe..
For the static rotor resistance control considered in the text for an induction motor drive, develop the fundamental frequency equivalent circuit of Figure 16.1.23.
Is connections in transformer are mains connected with the transformer or winding connections If it is mains connections then how can we connect zig-zag transformer in delta configuration
For evaporation from a point source, derive the ratio between the film thickness, d and the maximum thickness, d0 on a substrate of radius, r. What is the ratio for a surface source
The rectangular shaped current pulse is applied to 0.5microFarad capacitor.The initial voltege on the capacitor is a 20V drop in the reference direction of the current. Assume the passive sign convention. Derive the expression for the capacitor vo..
an electric pencil sharpener is rated 240 mw 6 v is connected to a 9-v battery and a series-dropping resistor rx
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 microcontroller memory map shows 16K bytes of Flash EEPROM in memory space $C000-$FFFF and 1 K bytes of RAM in memoryspace $1000-$13FF. a- Give the range of addresses (in hex) suitable for locating the code.
A boron diffusion into a 1 -ohm-cm n type wafer results in a Gaussian profile with a surface concentration of 5 x 10^18/cm^3 and a junction depth of 4um. a)how long did the diffusion take if the diffusion temperature was 1100 degrees C
Determine the binary code words for the second-order source extension using the Shannon-Fano and Huffman coding techniques. Determine the efficiency of the resulting codes and comment on the results.
A simple relay has an air gap of length 1.0mm and effective cross-sectional area of 1000mm2. The magnetising coilconsists of 1000 turns of wire carrying current of 200mA. Calculate the energy stored in the air gap.
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