Computer (Electrical Circuit& Machines) 4th Semester Course Outline

Computer (Electrical Circuit& Machines) 4^th Semester Course Outline

Bangladesh Polytechnic Institute (23104)

Technology: Computer

Semester: 4th

Subject Name: Electrical Circuit& Machines (6745)

Course Outline

Class No.	Discussion and Explanation of Topics/ Titles	Remarks
Class-1	 Apply the Principle of Vector and Vector Quantities.  Define Vector Quantities.  Explain the Vector representation of alternating voltage and current.  Explain the Vector in polar and rectangular form.  Formulate the relation between Vectors Expressed in rectangular and polar co-ordinate.  Solve problems related to Vector sum and difference, multiplication and division.
Class-2	Apply the concept of AC series circuit containing resistor, Inductor and Capacitor.  Draw the circuit containing resistor, Inductor and Capacitor.  Draw the Vector diagram RLC series circuit.  Compute the results of RLC series circuit in cartesian form and polar form notation.  Solve problems of RLC series circuit in rectangular coordinate system and polar co-ordinate system
Class-3	Draw the circuit containing resistor, Inductor and Capacitor In parallel.  Draw the Vector diagram of RLC parallel circuit.  Compute the results of parallel AC circuit in cartesian form and polar form notation.  Solve problems on parallel Ac circuit in cartesian form and polar form notation.
Class-4	Understand the application of complex algebra for power calculation  Calculate power employing complex form.Calculate VAR employing complex form.  Describe the conjugate method of calculating real power.  Describe the conjugate method of calculating reactivepower.
Class-5	Feedback(Class Presentation)
Class-6	Feedback(Class Presentation)
Class-7	Class Test-1
Class-8	 Understand the concept of poly-phase system.  State the term poly-phase system.  List the advantages of poly-phase system over single phase system.State the generation of poly-phase emf.  Sketch the phase voltage wave diagram.  Identify the phase sequence of poly-phase system.State the effects of reverse phase sequence.  Explain the methods of checking phase sequence.
Class-9	Apply the concept of polyphase for interconnection.  Write down possible ways of interconnection of three phase system.  Draw the circuit diagram of star connected 3-phase, 3-wire system.  List the application of 3-phase, 3-wire, star connected system.Sketch 3-phase, 4-wire, star connection system.
Class-10	List application of 3-phase, 4-wire star connection system.  Draw the vector diagram of 3-phase, 4-wire, star connection system.  Interpret the relation between line and phase voltage and current in a balanced 3-phase, 3-wire, star connection system.  Simplify the relation between line and phase voltage and current in a balanced 3-phase, 4-wire star connection system
Class-11
Class-12
Class-13	Understand the function of 3-phase star connection system.  Define Balance and Unbalance System Identify neutral wire in a 3-phase star connection system.  Evaluate the current in the neutral wire in an unbalanced 3- phase, 4-wire, star connected system.  Draw the phasor diagram of 3-phase, 4-wire star connected system.
Class-14	Discuss the formula IL = IP and VL = 3 Vp  Calculate volt-ampere, power and power factor in a balanced 3-phase, 4-wire star connected system.  Solve problems on star connected (balanced and unbalanced) power system.
Class-15	Feedback(Class Presentation)
Class-16	Feedback(Class Presentation)
Class-17	Understand the features of 3-phase delta connection system.  Draw the circuit diagram of a 3-phase delta connected system.  Draw the phasor diagram of delta connected system.  Express the deduction of the formula VL = VP and IL = 3 IP for connected system.  Simplify the relation between line and phase current & voltage in a balanced delta connected system
Class-18	Calculate the volt-ampere, power and power factor in a balanced 3-phase, delta connected system.  Solve problems on delta connected balanced system.  Compare the advantages of star connected system with those of delta connected system.
Class-19	Understand the principle of operation of transformer.  Define transformer.Explain the working principle of transformer.  Explain the emf equation of a transformer
Class-20	Understand the concept of losses, efficiency and voltage regulation of transformer.  Explain different losses in transformer.  Explain the factors affecting core loss and copper loss.  Explain the equation for maximum efficiency.  Explain the open circuit test and short circuit test of a transfoer.  Solve problems on efficiency and maximum efficiency  Explain the equation for voltage regulation of transformer.  Solve problems on voltage regulation of transformer
Class-21	Understand the principle of DC motor.  Explain the working principle of DC motor  Explain generator action of motor.  Explain the term torque, running torque and break down torque.Explain the torque equation of motor.  Describe the constructional features of DC motor.  Explain the function of commutator
Class-22	Understand the characteristics of DC motor.  Identify different types of DC motor.  Explain the performance characteristics of different types of DC motor.  Describe starting methods of DC motor.  Describe speed control of DC motor.  Understand the principle of induction motor.  Explain the general principle of induction motor.  Distinguish between the principles of induction motor and conduction motor.  Define sleep and sleep speed.Identify the types of induction motor.  List the uses of induction motor
Class-23	Feedback(Class presentation)
Class-24	Feedback(Class presentation)
Class-25	 Understand the working principle of 3-phase induction motor.  Explain the construction of 3-phase induction motor.  Explain the construction of a 3 phase squirrel case induction motor.  Explain the construction of a 3 phase wound rotor induction motor.  State the production of rotating magnetic field in a 3-phase induction motor.  Describe the methods of starting 3-phase induction motor.  State the principles of speed control of 3-phase induction motor.
Class-26	Understand the working principle of 1-phase induction motor.  Explain working principle of 1-phase induction motor.  Explain the self starting method of single phase motor.  Describe the principles of operation of standard split phase motor.  Describe the principles of operation of capacitor motor.  Describe the principles of operation of shaded pole motor and repulsion motor.Identify hysteresis motor, universal motor, reluctance motor and AC series motor.  Mention the methods of speed control of single phase induction motor
Class-27	Understand the working principle of synchronous motor and Stepper motor.  Explain the principle of operation of synchronous motor.  Describe the constructional features of synchronous motor.  Describe the starting methods of synchronous motor.  Explain the working principle of stepper motor.  List the different types of stepper motor.  Describe construction of different stepper motors

REFERENCE BOOKS

1. Electrical Technology  B. L. Theraja

2. Electrical Machine  Siskind