Transformers and Ac Motors Lab detail DTE Kar Diploma syllabus for Electrical And Electronics Engineering (EE), C15 scheme is extracted from DTE Karnataka official website and presented for diploma students. The course code (15EE45P), and for exam duration, Teaching Hr/week, Practical Hr/week, Total Marks, internal marks, theory marks, duration and credits do visit complete sem subjects post given below. The syllabus PDFs can be downloaded from official website.
For all other electrical 4th sem syllabus for diploma c15 scheme dte karnataka you can visit Electrical 4th Sem Syllabus for Diploma C15 Scheme DTE Karnataka Subjects. The detail syllabus for transformers and ac motors lab is as follows.
Pre-requisites:
Knowledge about Fundamentals of Electrical Engineering, Electrical circuits, Transformers and AC Motors.
Course Objectives:
To impart technical skills to the students through practical training that would enable the students to conduct experiments on Transformers, A.C. Motors and starters using suitable tools and equipments adopting safety measures, interpret the results, identify and locate faults, suggest remedies and perform general preventive maintenance on Transformers, A.C. Motors and starters.
Course Outcomes:
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LIST OF GRADED EXPERIMENTS:
- Identify the physical parts of 1 Phase and 3 phase transformers and Autotransformers. Note down the name plate details and interpret it. 03
- Identify the terminals of a 1 Phase transformer, test it for open circuit, short circuit and ground faults using test lamp / megger, check the insulation resistance, identify and locate the possible faults. Suggest remedies. 03
- Identify the HV/LV terminals, type of primary and secondary connections of a 3 Phase transformer, test it for open circuit, short circuit and ground faults using test lamp / megger, check the insulation resistance, identify and locate the possible faults. Suggest remedies. 03
- Identify the parts of single phase induction motors, test it for open circuit, short circuit and ground faults using test lamp / megger, check the insulation resistance, identify and locate the possible faults. Suggest remedies. 03
- Identify the terminals and parts of 3 Phase synchronous motor, test it for open circuit, short circuit and ground faults using test lamp / megger, check the insulation resistance, identify and locate the possible faults. Suggest remedies. 03
- Trace and draw the layout of Transformers and A/C motors in the labarotary and their power circuit wiring, healthy condition of fuses, switches ,MCB, ELCB check them for proper voltage, identify faults if any ,and rectify. 03
- Identify the parts of a DOL starter, test its parts locate faults if any. Suggest remedies. 03
- Identify the parts of a Star-Delta starter, test its parts and locate faults if any. Suggest remedies. 03
- Identify the parts of Autotransformer starters, test its parts locate faults if any. Suggest remedies. 03
- Conduct Polarity and Ratio tests on 1-ph transformer. 03
- Determine the efficiency and regulation of 1-ph transformer by direct loading. 03
- Pre-Determine the Regulation and Efficiency of 1-ph transformer by conducting O.C. and S.C. tests
- Parallel operation of two single phase transformers and analyse load sharing pattern for a given KVA rating. 03
- Measure Phase & Line Voltage and Phase & Line Current for the StarStar. (Y-Y Connection) transformer bank using 3 single phase transformers. 03
- Measure Phase & Line Voltage and Phase & Line Current for the StarDelta. (Y- A Connection) transformer bank using 3 single phase transformers. 03
- Connect ,Start, Run and Reverse the direction of rotation of 3-phase Induction Motor using DOL starter. 03
- Trace the start terminals and end terminals of three phase windings and mark the terminals u1,v1,w1 and u2,v2,w2 Connect, Start, Run and Reverse the direction of rotation of 3-phase Induction Motor using star delta starter. 03
- Start and run 3 ph Induction Motor using Autotransformer starter. Measure the speed for different voltages. 03
- Plot the Speed-Torque (Slip Vs Torque) Characteristics of 3-Phase Induction motor by mechanical loading (Brake-drum apparatus). 03
- Start, Run and Reverse the direction of rotation of synchronous motor. 03
- Identify and connect the starting winding, running winding , capacitor ,centrifugal switch terminals rotation of 1-ph capacitor start Induction Motor. Start, Run and Reverse the direction of rotation. 03
- Perform general preventive maintenance on transformers and synchronous Motors in the Electrical laboratory. 03
- Perform general preventive maintenance on 3 ph Induction motor and 1 ph Induction Motors in the Electrical laboratory. 03
- Perform general preventive maintenance on different types of motor starters. 03
- TESTS 06
Reference Books:
- Experiments in Basic Electrical Engineering by S. K. Bhattacharya, New Age International Publications, 2007 Edition.
- Electrical trade theory and trade practice ( 1st and 2nd year) – National Instructional Media Institute (NIMI).
- Laboratory courses in Electrical Engineering. by S.G. Tarnekar, P. K. Karbanda and others, S. Chand Publishers.
- Electrical Machines by M.V.Deshpande-PHI Publications.
- Electrical Motors Application and control byM.V.Deshpande-PHI Publications.
e-Resources:
For complete syllabus and results, class timetable and more pls download iStudy Syllabus App. Its a light weight, easy to use, no images, no pdfs platform to make students life easier.
Course Delivery:
The Course will be delivered through Tutorial, classroom interaction, group discussion, practical exercises and Student Activities.
Tutorial – 1Hr:
Staff-in-charge will
- Explain the concept of experiment to be conducted.
- Teach required selection of meters/ Electrical Machines/Equipment specified connecting wires for the experiment to be conducted.
- Use multimedia – animations and videos for demonstrating dis-assemble, assemble and maintenance of equipments before performing such exercises.
- Ask the students to draw the circuit and interpret it’s working.
- Give clear instructions about safety precautions to be followed while conducting experiment.
Note: Tutorial includes Identification and listing the parts of , 1-ph Transformer, 3ph alternator, 1-ph and 3-ph Induction Motor (squirrel cage & slip ring I.M.) and DOL Starter and Star-Delta Starters
Conduction/ Execution – 2 Hr:
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Suggested Student Activities:
Each Student has to prepare and submit at least 3 pages of self hand written report considering any ONE of the following topics.
- Selection of types of motors and their applications in industries
- Inspection, Repair and Preventive Maintenance of distribution transformer- testing of transformer oil, reconditioning of breather silica gel, testing Bucholz relay etc.,
- Selection of types of transformers and their applications in industries.
- Significance of vector group in 3 Phase transformers.
- Boost test on transformers.
- Transformer On-line and Off line tap changers.
- Cooling system for electrical machines.
- Energy efficient motors.
- Visit nearby Industry/Substation and make a report of the different motors and transformers used and their purpose.
- Prepare a suitable panel board for Transformers and A/C motors.
Scheme of Valuation for SEE (Semester End Examination)
- Identifying the parts and selection of meters/equipment. 05
- Circuit diagram with Procedure for one experiment. 10
- Connections, Conduction and Tabulation of Readings 20
- Calculation and Results 05
- Viva-voce 10
Lab Equipment Requirement:
- Central distribution board with control gear and power supply panel for all M/C. One
- Syn. Motor with Induction Start, 5HP,3phase,50Hz 110/220V D.C. with panel board indicating motor, Generator, meters brought out connections to connecting terminals. One set
- I.M 3phase,400V,50HZ 5HP squirrel cage type with starter and brake-drum apparatus with panel board indicating motor, Generator, meters brought out connections to connecting terminals. two
- Single phase IM Various types one in each type One each
- Single phase transformer 2kVA 1:1 Three
- Single phase transformer 2kVA 1:0.5 Two
- Variacs 3phase Two
- Variacs single phase Six
- Loading Rheostats 2kW,5kW Two
- Loading Rheostats-lamp load Two
- 3phase choke coil-continuously variable Two
- 3phase Capacitor bank Two
- Wire wound rheostats range-assorted 30
- Tachometers (Analog -3 and Digital-3. 06
- Portable Moving iron ammeter -multirange (0-1-2-5-10-20. 20
- Portable Moving iron Voltmeters -multirange (0-5-10-15-30-75-150-300-600V. 20
- Multimeters analog and digital 04
- Watt meters
- Dynamometer type lpf 75/300/600V,1/2A
- Dynamometer type upf 75/300/600V,5/10A
- Dynamometer type upf 75/300/600V,15/30A 02 04 04
- 3 phase watt meters 0-300/600V 15/30A 02
- Portable pf meters 02
- Frequency meters read type and digital type 02
- Phase sequence indicator 02
- Knife switches SPST,DPST,DPDT,TPST,TPDT etc. 02
- Galvanometers centre zero type 40
- Meggar 10
- Earth tester 03
- Tong tester analog and digital 03
- Compass needles 04
- Work benches 05
- Steel almirahs 10
- Steel racks 10
- Iron clad switches 30A,60A,100A. 10
- D-G set 20 kVA ,3phase, 50Hz 20
- Change over switch 60A,100A 01
For detail syllabus of all other subjects of BE Electrical, C15 scheme do visit Electrical 4th Sem syllabus for C15 scheme.
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