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Given a three phase motor: 5 hp, 3515 rpm, 230V, 10A, efficiency = 75%; derive the per-pharse equivalent circuit of the motor.
Electrical & Electronics, Engineering
Questions - Q1. A single-phase transformer rated 2.1 kV/130 V, 7.8 kVA has the following winding parameters: r1= 0.7Ω, x1 = 0.9Ω, r2 = 0.04Ω and x2 = 0.05Ω. Determine: a. The combined winding resistance ________ Ω and le ...
Problem # 1: Given a sequence x(n) for 0≤n≤3, where x(0) = 1, x(1) = 1, x(2) = -1, and x(3) = 0, compute its DFT X(k). (Use DFT formula, don't use MATLAB function) Problem # 2: Use inverse DFT and apply it on the Fourier ...
Assignment - Power Distribution System Transformers Complete your calculations, drawings, and answers, neatly handwritten on these sheets and hand in at the start of lecture in week 6. Absolutely no late submissions will ...
Problems - Problem 1 - Find v 0 in the op amp circuit of Fig. 1. Problem 2 - Compute i 0 (t) in the op amp circuit in Fig. 2 if v s = 4 cos(10 4 t). Problem 3 - If the input impedance is defined as Z in = v s /I s , find ...
Question 1 - For the transistor in the circuit shown in Figure, assume β = 120. Design the circuit such that I CQ = 0.15 mA and R TH = 200kΩ. What is the value of V CEQ ? Question 2 - (a) For the circuit shown in figure, ...
Question - (i) A star-connected, three-phase synchronous induction motor takes a current of 10 amps from a 415 volt supply at unity power factor when supplying a steady load. If the synchronous reactance is 5 ohms/phase ...
1 Goal In this project you will solve a non-trivial design problem explicitly using the divide-and-conquer (D&C) approach. The main reason for using the D&C approach is the ease of the design process and the streamlined ...
Problem 1: A two-phase servomotor has rated voltage applied to its excitation winding. The torque speed characteristic of the motor with Vc = 220 V, 60 Hz applied to its control phase winding is shown in Fig.1. The momen ...
Question 1. A pnp transistor with β = 60 is connected in a common-base configuration as shown in figure P5.8 (a) The emitter is driven by a constant-current source with I E = 0.75 mA. Determine I B , I C , α, and V C . ( ...
Advanced Computational Techniques in Engineering Assignment - Optimisation For this assignment, you are required to carry out the process of attempting to solve different optimisation problems. For each question, you are ...
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