All Courses

Course conducted by
Rubel Hossen
Instructor
Electrical Technology
Semester : 5th & 7th
Daffodil Polytechnic Institute

Subject Overview : Diploma in engineering level students is required to acquire the knowledge and skills on the area of Testing and Maintenance of Electrical Equipment. It is one of the most important subject in respect to provide the students opportunities to acquire knowledge, skill and attitude in the area of testing and maintenance of electrical equipment with the special emphasizes on: Trouble shooting and Maintenance of electrical equipment, Faults findings and remedy the faults of Battery, DC Generators, DC motors, Faults findings and remedy the troubles of Transformers, Induction motors, Auto Star-Delta starter, Forward-Reverse ( 3 - Phase ) motor starter, Magnetic contact, Over Load Relay (OLR ), Test trip , 3 -Phase motor reverse rotation, Phase Sequence change, Alternator Faults findings and remedy the troubles of Synchronous motor and Circuit breaker, Power factor improvement unit (PFI), Solar system maintenance
Learning Outcome (Theory:

After Completing the subject, students will be able to:

1. Find the troubles of battery, DC generators and DC motor.

2. Describe the faults of single phase and three phase Transformer.

3. Outline the provable faults of single-phase induction motor.

4. Explain the faults of three phase induction motor

5. Explain the troubles of Alternator and Synchronous motors.

6. State the faults of Circuit breaker.

7. Illustrate the faults of Auto Star-Delta starter.

8. Explain the troubles of Overload Relay (OLR).

9. Discuss the troubles of power factor improvement unit (PFI).

10. State the faults of solar system.

Learning Outcome (Practical):

After undergoing the subject, students will be able to:

1. Perform the different test of storage Battery.

2. Detect the causes of voltage build up failure of DC generator and failure of running of DC motor.

3. Perform routine test of Single phase and Three phase distribution Transformer.

4. Recognize the faults of Single phase and Three phase Induction motors.

5. Detect the faults of Auto Star-Delta Stater and Overload relay.

6. Detect the common faults of Alternator.

7. Detect the troubles of Synchronous motor.

8. Identify common faults of High Voltage circuit Breaker.

9. Perform the testing of power factor improvement unit (PFI)

10. Detect the faults of solar system.

Course Conducted By
Md.Shafikul Islam (Milon)
Head of Department
Electrical Technology.
Daffodil Polytechnic Institute

AIMS
To provide the student with an opportunity to acquire knowledge, skill and attitude in the area of alternating current machines with special emphasis on:
1. Alternator
2. Synchronous motor
3. Single phase motor Motor control.

SHORT DESCRIPTION
Alternators: Principle, construction, emf equation, effect of load on alternator; voltage regulation, parallel operation and starting procedure of alternator; Synchronous motor: Operation, torques and excitation, Phase swinging, Starting method and uses, Power factor correction; Single phase motor: Operation of single phase motor; Operation of AC commentator motor; Motor control: Speed control of single phase motor; Starting of three phase induction motor; Controlling speed of three phase induction motor.

Course Conducted By
Md. Shafikul Islam (Milon)
Sr. Instructor and Head
Electrical Technology.
Daffodil Polytechnic Institute

AIMS

To provide the student with an opportunity to acquire knowledge, skills and attitude in the area of alternating current machines with special emphasis on :
• power transformer.
• auto transformer.
• 3-phase induction motor.


Outcome

 My Students will be able to understand principle of operation & construction of transformer, EMF equation, transformation ratio, losses, equivalent resistance, leakage reactance, tests, regulation, efficiency, three phase connection, auto transformer, parallel operation,
 My Students will be able to understand Three-phase induction motor: working principle, construction, magnetic field, torque, power stage, tests, starting and speed control.
 They will be able to Perform various test of Ac machine
 They will be able to operate and speed control of induction motor
 They can Identify efficiency of Transformer and motor

Course Conducted By
Rubel Hossen
Instructor
Electrical & Telecommunication Technology.
Daffodil Polytechnic Institute

OBJECTIVES
After completion of these contents students will be able to acquire, achieve and develop:
 To acquire knowledge and skills of Electrical house wiring.
 To develop the capacity to know constructional details and working principles of electric lamps.
 To develop understanding about earthing.
 To develop understanding about controlling and protective devices.
 To acquaint the principles of Electro-magnetic Induction.
 To familiarize Magnetism and magnetization
SHORT DESCRIPTION
Advance wiring; Electric lamps; Earthing; Controlling and Protective devices; Electro-magnetic Induction;
Magnetism and Magnetization; Hysteresis and eddy current loss; Energy stored in magnetic field

Course Conducted By
Md.Shafikul Islam (Milon)
Sr. Instructor and Department Head
Electrical Technology.
Daffodil Polytechnic Institute

Aim

To provide the student with an opportunity to acquire knowledge, skill and attitude in the area of planning and
estimating of electrical installation with special emphasis on:
• Planning and preparation of estimate for an electrical installation.
• Internal wiring and service connection.
• Installation of electrical machines.
• Electricity act / rules and safety practices..

Outcome

 Student will be able to know about Planning and estimating;
 They will be able to know how to use Measurement book,
 They will be able to understand importance of price sheet, catalogue and schedule of labor rate;
 They can calculate the Illumination;
 They will be able to chose Conductor size and can calculate current carrying capacity;
 They will be able to know Electricity Acts/Rules; Electrical codes;
 They will be able to perform Internal wiring installation;
 They can estimate for Distribution line;
 They can perform winding of electrical machine
 They will be able to Test electrical installation.

Course Conducted By
Md.Husne Fahad
Instructor
Electrical Technology.
Daffodil Polytechnic Institute

AIMS
My students will be able to acquire knowledge, skills and attitude in the area of transmission and distribution electrical power with special emphasizes on:
 Transmission and distribution systems of electrical power.
 Comparison of different types of transmission and distribution systems.
 Electrical and Mechanical design of overhead lines.
 Survey of transmission and distribution line routes.
 Voltage regulation and Efficiency of transmission lines.

SHORT DESCRIPTION

Different systems of transmission; Aspect of transmission system; Mechanical design of overhead lines; support of overhead lines; conductors & conductor materials; Insulators; Effect of sag; Methods for survey of transmission/distribution line route; Voltage distribution of suspension insulator; Corona; Erection of poles and drawing of conductors of overhead lines; Electrical design of overhead line; Resistance of the line conductor; Skin effect of transmission line; Effect of inductance on transmission line; Effect of capacitance of overhead transmission line; Voltage regulation and efficiency of short transmission line.

Course Conducted By

Md. Shafikul Islam (Milon)
Sr. Instructor and Head
Electrical Technology.
Daffodil Polytechnic Institute

Rubel Hossen
Instructor
Electrical Technology.
Telecommunication Technology
Semester : 5th
Daffodil Polytechnic Institute

Subject Overview : Diploma in Engineering Level students are required to acquire the knowledge and skill on the area of DC Machines with special emphasis of basic concept of Cell & Battery, Fuel cell, procedure of Battery charging and testing, DC generator and its characteristics, Losses and Efficiency of DC generator, DC motor, Speed control and voltage regulation of DC motor, Industrial Application of DC motor, electric traction. Electrical machines is a subject where a student will deal with various types of electrical machines which are employed in industries, power stations, domestic and commercial appliances etc. As such the knowledge of DC Machine the pre-requisite for these fields for effective discharge of their duties. These necessities of electrical engineering subjects in the curriculum of Diploma in engineering. After completion of this course student will be able to construct Cell & Battery, Perform Battery charging and testing, assemble and re-assemble of DC Generator, Operate DC generator and motor, develop lap and wave winding and speed control of DC motor. Have been given more emphasis on practical aspect rather than theory in teaching learning approach.
Learning Outcome (Theoretical:
After Completing the subject, students will be able to

Define cell, fuel cell and battery.

 Illustrate procedure of Battery charging and testing.

 Outline DC generator and its characteristics.

 Calculate Losses and Efficiency of DC generator.

 Describe DC motor.

 Enumerate Speed control and Regulation of DC motor

 Explain Industrial Application of DC motor.

 Mention electric traction.

Learning Outcome (Practical):

After undergoing the subject, students will be able to:

 Construct cell, fuel cell and battery.

 Perform Battery charging and testing.

 Assemble and de-assemble of varies parts of D.C. Generator

 Operate DC shunt, series and compound motors

 Develop Lap and wave winding.

 Execute speed control on DC Motors.

 Demonstrate Industrial Application of DC motor.

Course Conducted By
Md.Shafikul Islam (Milon)
Head of Department
Electrical Technology.
Daffodil Polytechnic Institute

Aim
To provide the student with an opportunity to acquire knowledge, skill, and attitude in the area of planning and
estimating electrical installation with special emphasis on:
• Planning and preparation of estimate for an electrical installation.
• Internal wiring and service connection.
• Installation of electrical machines.
• Electricity act/rules and safety practices.

Outcome
Students will be able to know about Planning and estimating;
They will be able to know how to use the Measurement book,
They will be able to understand the importance of price sheet, catalog, and schedule of labor rate;
They can calculate the Illumination;
They will be able to choose Conductor size and can calculate the current carrying capacity;
They will be able to know Electricity Acts/Rules; Electrical codes.
They will be able to perform Internal wiring installation;
They can estimate for Distribution line;
They can perform winding of electrical machine
They will be able to Test the electrical installation.