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Department of Textile Engineering (TE) Khulna University of Engineering & Technology (KUET)

Course No. : EEE 2122 Course Title : Sessional on EEE 2121 Credits: 1.5. Course Teacher. Mr. Md. Sahabul Alam Assistant Professor, Dept. of EEE, KUET Mr. Md. Sakib Galib Sourav Assistant Professor, Dept. of EEE, KUET Mr. Abu Syed Md. Jannatul Islam Lecturer, Dept. of EEE, KUET.

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Department of Textile Engineering (TE) Khulna University of Engineering & Technology (KUET)

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  1. Course No. : EEE 2122 Course Title : Sessional on EEE 2121 Credits: 1.5 Course Teacher • Mr. Md. SahabulAlam • Assistant Professor, Dept. of EEE, KUET • Mr. Md. SakibGalibSourav • Assistant Professor, Dept. of EEE, KUET • Mr. Abu Syed Md. Jannatul Islam • Lecturer, Dept. of EEE, KUET Department of Textile Engineering (TE) Khulna University of Engineering & Technology (KUET)

  2. List of Experiments Exp.1: Familiarization with lab equipment's of Electrical Circuit Lab and measurement of voltage, current, power for both AC and DC supply. Exp.2: Verification of ohm’s law. Exp.3: Study on series and parallel circuit and verification of KVL and KCL. Exp.4:Verification of superposition theorem Exp.5: Determination of circuit parameters of an R-L series circuit. AJI

  3. List of Experiments Exp.6: Determination of open circuit characteristics curve of a dc generator Exp.7: Determination of variation of terminal voltage with speed of a separately excited DC generator at constant excitation Exp.8: Speed control of a DC shunt motor by varying field current with armature voltage keep constant Exp.9: Introduction to V-I characteristics of a semiconductor diode Exp.10: Study on tripping characteristics of a circuit breaker AJI

  4. Today’s Experiment Exp. No. : 01 Name of the Experiment: Familiarization with lab equipment's of electrical circuit lab and measurement of voltage, current, power for both AC and DC supply. AJI

  5. Task ! ! ! ! ! ! ! ! • AC • DC AJI

  6. AC

  7. AC • Alternating current describes the flow of charge that changes direction periodically. • As a result, the voltage level also reverses along with the current. AJI

  8. AC AJI

  9. DC AJI

  10. Task ! ! ! ! ! ! ! ! How can you measure these AC or DC voltage or Current??? AJI

  11. Commonly used Electric Meters • Ammeter • Voltmeter • Wattmeter AVO meter, Commercially called Multimeter AJI

  12. Ammeter Measures The amount of Current flow through the circuit Types: 1. DC Ammeter 2. AC Ammeter AJI

  13. Schematic Diagram of Ammeter Ammeter Should always be connected in Series with Load AJI

  14. Pictorial View of DC & AC Ammeter AC Ammeter DC Ammeter AJI

  15. Voltmeter • Used to measure Electrical potential difference between two points in an electric circuit Types: 1. DC Voltmeter 2. AC Voltmeter AJI

  16. Schematic Diagram of Voltmeter Voltmeter must be connected in Parallel with Load AJI

  17. Connection Diagram of Voltmeter AJI

  18. Pictorial View of DC & AC Voltmeter DC Voltmeter AC Voltmeter AJI

  19. Multimeter/AVO meter • A multimeter is a device used to measure voltage, resistance and current in electronics & electrical equipment. • It is also used to test continuity between to 2 points to verify if there is any breaks in circuit or line. • There are two types of multimeter Analog & Digital • Analog has a needle style gauge • Digital has a LCD display AJI

  20. Multimeter/AVO meter AJI

  21. Multimeter/AVO meter • Red meter lead Is connected to Voltage/Resistance or amperage port and Is considered the positive connection • Blackmeter lead Is always connected to the common port and Is considered the negative connection • ProbesAre the handles used to hold tip on the tested connection • TipsAre at the end of the probe and provides a connection point AJI

  22. Measuring Continuity AJI

  23. AJI

  24. AJI

  25. Tumbler Switch AJI

  26. Wattmeter Measures the Electric power in watts Types: 1. Analog Wattmeter 2. Digital Wattmeter AJI

  27. Pictorial View of Wattmeter: AJI

  28. Schematic Diagram of Wattmeter cc pc Measured Power,P=VI AJI

  29. Wattmeter AJI

  30. Rheostat It is an adjustable or variable resistor. It is used to control the electrical resistance of a circuit without interrupting the flow of current. Rheostat has 3 terminals and usually consist of a resistive wire wrapped to form a toroid coil with a wiper that slides along the surface of the coil. AJI

  31. Capacitor A capacitor is a passivetwo-terminalelectrical component that stores electrical energy in an electric field. The effect of a capacitor is known as capacitance. AJI

  32. Ballast An electrical ballast is a device placed in line with the load to limit the amount of current in an electrical circuit. It may be a fixed or variable resistor. A familiar and widely used example is the inductive ballast used in fluorescent lamps to limit the current through the tube, which would otherwise rise to a destructive level due to the negative differential resistance artifact in the tube's voltage-current characteristic. AJI

  33. Report Writing: 01. Objectives 02. Introduction 03. Apparatus Required 04. Experimental Setup or Circuit Diagram 05. Experimental Data 06. Calculation 07. Graphs (if any) 08. Results and Discussion 09. Conclusion 10. Question & Answer(if any) 11. References AJI

  34. Objectives: • Purpose of Experiment e.g.To be familiar with the working principle of various electric meters. • Should be mentioned in points AJI

  35. Introduction: • Introductory Description. e.g. Why and where ammeter, voltmeter & wattmeter are used. • Working principle and additional figures AJI

  36. Apparatus Required: • Should be mentioned in numbers • Name of Equipments with rating • Quantity AJI

  37. Experimental Setup: • The diagram of the work • Specify the Equipments • Direction of current flow • Polarity (if any) AJI

  38. Experimental Data: • Should be written in table • Draw Table using Pencil/Pen & scale. AJI

  39. Calculation: • Elaborate Calculation of the whole work [will be written in the board] AJI

  40. Graph: • Proper Scaling of axis • Encircle the plotted data points • Labeling [Units should be included] • Figure No. along with figure name and Table No. along with table should be mentioned AJI

  41. Result & Discussion: • Discuss your results • Is there any error in results & why? • Is there any deviation in your result from ideal value & why? • Comparison between measured and ideal value. • Mention numerical values (if any). • Discuss your graphs. AJI

  42. Conclusion: • What have you learnt from this experiment? • What is the necessity of this experiment? • What is the way to abase the error [if any] AJI

  43. Question and Answer: • Questions must be written in your report. • Relevant answer should be written. AJI

  44. Reference: • Sources- you have used to write the report • For more references – write in numbers e.g. [1] writer name, “source name”. [2]……………. AJI

  45. References of Today’s Experiment • [1] B.L. Theraja, “A Textbook of Electrical Technology, Volume I”. • [2] Robert L. Boylestad, “Introductory Circuit Analysis”. AJI

  46. Marks Distribution: Attendance: 10% Lab Reports and Class Performance: 50% Quizzes: 20% Central Viva: 20% Total 100% AJI

  47. Top page of Sessional Report: AJI

  48. AJI

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