question archive ELECTRICAL ENGINEERING TEST ASSIGNMENT The test paper is divided into two sections: Total Marks: 50 Section 1: Numerical – 20 Marks Section 2: Theoretical – 30 Marks Section 1: Numerical 1

ELECTRICAL ENGINEERING TEST ASSIGNMENT The test paper is divided into two sections: Total Marks: 50 Section 1: Numerical – 20 Marks Section 2: Theoretical – 30 Marks Section 1: Numerical 1

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ELECTRICAL ENGINEERING TEST ASSIGNMENT
The test paper is divided into two sections: Total Marks: 50
Section 1: Numerical – 20 Marks
Section 2: Theoretical – 30 Marks
Section 1: Numerical
1. Consider a machine which has following properties:
a. Stator has smooth surface
b. Rotor possesses open type of slots
Given that the slot width and tooth width is both equal and have value 15mm. Also the
air gap length is 3mm.
The Carter’s coefficient is: 1
1 +5(????????????????)
If the effective air gap length is x2 dm, then the value of ?x? is?
2. We have a 3.333kW motor with a mass of 506kg. The casing of motor can be
approximated to a cylinder with length 100cm and 70cm diameter. The motor is 75%
efficient. Given the specific heat of motor 700 J/kgoC. Also we know that the surface of
motor is capable of dissipating 12.5 W/m2 oC of heat.
If the heating time constant of the motor is ?a? seconds and the final temperature rise
is ?b?, then the value of ?
?
- ??? ?is? (Use π = 22/7)
Section 2: Theoretical
1. Discuss the following with respect to a transformer:
a. Definition
b. Types of Transformer
c. Working
d. Uses
Expected Format
a. Title Page
b. Table of Content
c. Abstract
d. Introduction
e. Main Content
f. Conclusion
g. References – Harvard Style
Formatting guidelines:
a. Word Limit: 500 words
b. Font Size (Headings): 14
c. Font Size (Content): 12
d. Line spacing: 1.5

e. Font: Times New Roman

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