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Testing & Maintenance of Electrical Equipment (26753/66775)

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.
Basic Electricity (26711)
Course Conducted By
Pulak Biswas
Instructor
Daffodil Polytechnic Institute

Course Conducted By
Rubel Hossen
Instructor
ENT ,TCT , Textile Technology
Semester: 1st, 3rd
Daffodil Polytechnic Institute

AIMS
• To familiarize the basic quantities & laws and to apply them in solving problems of electrical circuits.
• To acquaint with electro-chemistry, electro-magnetism, electro-magnetic induction and electrostatic.
• To develop skill in electrical wiring.
• To appreciate the safety measures to be taken for electrical wiring

SHORT DESCRIPTION
Electric current and ohm's law; conductors and insulators; basic electrical circuits; power and energy; basic electro-chemistry; electro-magnetism; electro-magnetic induction; electrostatics; wires and cables; hand tools used in wiring; house wiring; controlling devices; protective devices; earthing.
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ELECTRICAL ENGINEERING MATERIALS (EEM)-26712
Course Conducted By
Md. Shahriyar Rahman
Instructor, Electrical Technology.
Daffodil Polytechnic Institute

OBJECTIVES:
● Develop and understand the concept of conducting materials.
● Develop and understand the concept of insulating materials.
● Develop and understand the concept of semiconducting materials.
● Understand the magnetic materials.
● Understand the transformer oil.
● Understand the optical fiber.

SHORT DESCRIPTION:
Conducting and no conducting materials, conduct materials, high resistive materials, magnetic materials, insulating
materials, transformer oil, semiconducting materials, optical fiber.
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Electrical Installation Planning and Estimating (26741)
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
DC Machine (26753)
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.
Digital Electronics-1 (26831)
Course Conducted By
MD. Badeuzzamal Sarker
Instructor
Electrical Technology
Daffodil Polytechnic Institute
This Course is for: Diploma in Engineering (CMT 4th Semester)
Objectives of the Course
After completion of the course students will be able to:
You will get concept of digital electronics; Logic gates, Boolean algebra and logic simplification &Combinational logic circuits.
Microcontroller & PLC (66868)
Conducted Class by
Md. Badeuzzamal Sarker
Instructor
Electrical Technology
Daffodil Polytechnic Institute

AIMS
To provide the students with opportunities to acquire knowledge, skills and attitude in the area of Microcontroller and PLC emphasizes on:
The Fundamentals of microcontroller.
The features of the 8051 microcontroller.
The architecture of 8051 microcontroller.
Develop C language program for the 8051 microcontroller.
Understand I/O port Programming.
Understand the Timer and Counter of the 8051.
Interfacing LCD and Real world devices.
Relay logic control Ladder diagram elements and programming.
SHORT DESCRIPTION
Fundamentals of microcontroller, hardware of 8051, instruction set, Assembly language programming, C programming, Timer, Interrupt, DC motor interfacing, Stepper motor interfacing, interfacing LCD display, Relay logic control, Fundamentals of PLC, PLC ladder diagram programming, Inter relay, Jump and Call, Timer and Counter.