electrical

Question 1

Choose one of the methods of analysis or circuit theorems from the following list: a. Superposition b. Source transformation c. Thevenin d. Norton e. Mesh f. Nodal Design a simple RLC AC Source electric circuit that can demonstrate the fundamental principle of the chosen method of analysis/circuit theorem. (Your circuit MUST unique and MUST not be the same as other’s group) Using the chosen methods of analysis/theorem, identify voltage, current, P, Q, S of each load and for the whole circuit. Then, determine the power factor of the whole loads in the circuit. Sketch the power triangle and phasor diagram of voltage and current source for the circuit. Prove your answers of voltage and current by simulating the circuit using any circuit analysis simulation tools. Show that the calculated values are closed to the simulated results.

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Choose one of the methods of analysis or circuit theorems from the following list: a. Superposition b. Source transformation c. Thevenin d. Norton e. Mesh f. Nodal Design a simple RLC AC Source electric circuit that can demonstrate the fundamental ...

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Question 2

You are working as an electrical engineer in a factory that manufactures electrical components and circuits. You have been asked by your manager to prepare a printed circuit board of the following systems

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You are working as an electrical engineer in a factory that manufactures electrical components and circuits. You have been asked by your manager to prepare a printed circuit board of the following systems:(a)Design a basic op-amp based BJT ...

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Question 3

Consider the single-line diagram of a power system shown in the figure with equipment rating as follows; Generator G1: 50 MVA, 13.2 kV, x = 0.15 pu Generator G2: 20 MVA, 13.8 kV, x = 0.15 pu Three-phase ∆-Y transformer T1: 80 MVA, 13.2∆/16YkV, X = 0.1 pu Three-phase Y-∆ transformer T2: 40 MVA, 165Y/13.8∆kV, X = 0.1 pu Load: 40 MVA, 0.8 PF lagging, operating at 150 kV Choose a base of 100 MVA for the system and 132 kV base in the transmission-line circuit. Let the load be modeled as a parallel combination of resistance and inductance. Neglect transformer phase shifts. Draw a per-phase equivalent circuit of the system showing all impedances in per-unit.

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Consider the single-line diagram of a power system shown in the figure with equipment rating as follows; Generator G1: 50 MVA, 13.2 kV, x = 0.15 pu Generator G2: 20 MVA, 13.8 kV, x = 0.15 pu Three-phase ∆-Y transformer ...

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Question 4

Q2: Sketch the following signals.(a) x[n]=u[n+5]-3u[n+1]+u[n-1]+u[n-4](b) x[n]=r[n](u[n+4]-u[n-5])(c) x(t)=3u(t+4)-u(t+2)-u(t-1)+2u(t-3)(d) x(t)=∑i=-

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Q2: Sketch the following signals.(a) x[n]=u[n+5]-3u[n+1]+u[n-1]+u[n-4](b) x[n]=r[n](u[n+4]-u[n-5])(c) x(t)=3u(t+4)-u(t+2)-u(t-1)+2u(t-3)(d) x(t)=∑i=-

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Question 5

Sketch the following signals. (a) x[n] = u[n + 5] − 3u[n + 1] + u[n − 1] + u[n − 4] (b) x[n] = r[n] (u[n + 4] − u[n − 5]) (c) x(t) = 3u(t + 4) − u(t + 2) − u(t − 1) + 2u(t − 3) (d) x(t) = P∞ i=−∞ δ(t − 6i) [u(t + 2) − u(t − 2)]

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Sketch the following signals. (a) x[n] = u[n + 5] − 3u[n + 1] + u[n − 1] + u[n − 4] (b) x[n] = r[n] (u[n + 4] − u[n − 5]) (c) x(t) = 3u(t + 4) − ...

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Question 6

data, and transformer input data. Note that bus 1 is the swing bus. Your output for this part consists of three power-flow input data files

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data, and transformer input data. Note that bus 1 is the swing bus. Your output for this part consists of three power-flow input data files.

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Question 7

data, and transformer input data. Note that bus 1 is the swing bus. Your output for this part consists of three power-flow input data files. Part 2:

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data, and transformer input data. Note that bus 1 is the swing bus. Your output for this part consists of three power-flow input data files. Part 2:

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Question 8

Una distribución esférica de carga ρ=ρ0[1-(R2b2)] existe en la región 0≤R≤b. Esta distribución de carga está rodeada concéntricamente por una capa conductora de radio interior Ri(>b) y

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Una distribución esférica de carga ρ=ρ0[1-(R2b2)] existe en la región 0≤R≤b. Esta distribución de carga está rodeada concéntricamente por una capa conductora de radio interior Ri(>b) y radio exterior R0. Determine E en todos los puntos.

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Question 9

A TE10 mode propagates between two parallel planes separated by a distance of 0.25 m. The planes are lossy and have a conductivity of 5 × 107 S/m. If the maximum electric field strength between the planes is 1000 V/m, determine the power loss per square meter on each plate when the operating frequency is 2 GHz. u will be sure to find an answer!

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A TE10 mode propagates between two parallel planes separated by a distance of 0.25 m. The planes are lossy and have a conductivity of 5 × 107 S/m. If the maximum electric field strength between the planes is 1000 V/m, ...

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Question 10

Question: A 60 Hz, 4 pole turbo-generator rated 100MVA, 13.8 KV has an inertia constant of 10 MJ/MVA. (a) Find stored energy in the rotor at synchronous speed. (5 marks) (b) If the input to the generator is suddenly raised to 60 MW for an electrical load of 50 MW, find rotor acceleration. (5 marks) (c) If the rotor acceleration calculated in part (b) is maintained

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Question: A 60 Hz, 4 pole turbo-generator rated 100MVA, 13.8 KV has an inertia constant of 10 MJ/MVA. (a) Find stored energy in the rotor at synchronous speed. (5 marks) (b) If the input to the generator is suddenly raised ...

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