Electrical Engineering Answers

Write and execute a PYTHON program to perform the following tasks

1.Write a Python program to create a tuple with 10 items and display the first 3 items.

Write and execute a PYTHON program to perform the following tasks.

1.Program using function of numbers from 0 to 10 To find the factorial of a number, defined by fact(n)=1, if n=0. Otherwise fact(n)=n*fact(n--1).

Write and execute a PYTHON program to perform the following tasks.

1.Program to input 10 numbers and find the number of positive and negative numbers.

Write and execute a PYTHON program to perform the following tasks.

1. Find the sum of all numbers below 1000 which are multiples of 3 or 5 in Python

A customer calls the customer service of the e-commerce site where he is shopping. Customer service cannot be reached as it is full 60% of the time. How likely is a customer who makes 7 calls in a row to be connected to customer service on any one call?

Two power stations, A and B, work at 88 kV and deliver power to their separate

consumers as follows:

Power station B: 540 MVA at a power factor of 0.809 lagging

Power station A: 480 MVA at a power factor of 0.8387 lagging

An inter-connector with an impedance of Z = 7.25∠820 ohms per line joins power

station A with power station B. The voltage at A is advanced with an angle of 7.80

with respect to the voltage of B.

1.1 Use the complex power method and calculate the active power and reactive power

received and transferred.

(144.885 MW; - 10.3855 MVAr; 142.135 MW; - 29.9525 MVAr)

1.2 Write down the final distribution of active and reactive power between the tvo power

Stations.

(A sends 547.447 MW and sends 251.041 MVA'r ; B receives 579.0045 MW and receives 287.451 MVA'r)

1.3 Calculate the final power factor at the generators of each power station.

(0.909 lagging ; 0.8957 lagging)

4. Two power stations, A and B, which are in phase at 66 kV, supp!y respective

inductive loads of 455 MVA at an inductive power factor of 0.766 and 555

MVA at a lagging power factor of 0.88295 respectively. An inter-connector

with an impedance of 4.45∠75 0 ohms per line, links station A with station B.

By means of a phase regulator at A, the phase angle of the voltage at A is

advanced in order to increase the loading of station A to 620 MW.

4.1 Use standard formulae and calculate the angle of advance at power station A.

(16.060)

4.2 Calculate the transmission line active power loss.

(19.765 MW)

Draw the state diagram of the Moore machine which has 2 inputs (X1, X2) and one output Z. The output of the machine is determined by the following:

* Z does not change its value if X1 X2 = 00

* Z becomes 1 if X1 X2 = 01

* Z becomes 0 if X1 X2 = 10 * Z change its value if two consecutive 11 are received at the inputs X1X2

* The reset input initializes the machine to a 0 output. 

Write a MATLAB code to generate Double Side Band Full 

Carrier and Single Side Band Suppressed Carrier signals if 

Fc=500KHz and Fm = 1.2KHz and submit the simulated 

results.

Calculate the Rms value of a sinusoidal current of maximum value of 20A