Fig – 1.2 SC Test on Single Phase Transformer 1.5 PROCEDURE: :O. All the connections should be tight and clean. 5. Precautions: 1. The transformer works on the principle of electromagnetic induction between two windings placed on a common magnetic circuit. 3. 1. (Electricity is a good servant but a bad master). LABORATORY PRACTICE SAFETY RULES 1. 1 open circuit & short circuit test on a single phase transformer . Gradually increase the supply voltage in steps. LABORATORY MANUAL ON ELECTRICAL MACHINES - II LABORATORY 2018 – 2019 III B. Total Page 52 . Switch ON the supply to RPS. B.E Electrical and Electronics Engineering Lab Manual Anna University Regulation 2017 Students of Regulation 2017 can download the EEE Lab Manuals from 1st Semester to 8th Semester in this page. Apply the voltage (say 5v) and note the Ammeter readings. Note down the readings of voltmeter (V), Ammeter (I o) and wattmeter (P o). Sum up the Ammeter readings (I1 and I2) , that should be equal to total current (I). 2. SAFETY is of extreme importance in the Electrical Engineering Laboratories. 7. 2. 2. USHA RAMA COLLEGE OF ENGINEERING & TECHNOLOGY EM-II LAB MANUAL Prepared by Mr. J Satish Babu & Mr. A. LokeshDEPARTMENT OF ELECTRICAL & ELECTRONICS ENGINEERING 1 ... Tabulate the readings as shown. 4. 2 sumpners test. Electricity NEVER EXECUSES careless persons. > Electric Machinery by A. E. Fitzgerald (Sixth Edition) > > Electric Machines Analysis and Design Applying MATLAB by Jim Cathey (Chapter 2-7) > > Engineering Mechanics Dynamics Volume 2 by J. L. Meriam, L. G. Kraige (5th edition) > > Electric Machinery Fundamentals 4e by Stephen J Chapman > MANUAL EE 591 Page | 6 EXPERIMENT NO: EM – II/2 TITLE SPEED CONTROL OF THREE PHASE SQUIRREL CAGE INDUCTION MOTOR BY VOLTAGE CONTROL AND FREQUENCY CONTROL METHOD. 3 scott connection of transformers. THEORY : The air-gap induced emf in an ac machine is given by If we subtract loss corresponding to OA from Wo, then we get the no-load electrical and magnetic losses in the machine, because the no-load input Wo to the motor consists of (i) small stator Cu loss 3I o ² R 1 (ii) Stator core loss W c = 3 G o V c OBJECTIVE : To study the speed control of induction motor by varying supply frequency (V/f control). The readings of the total power input are Wo, Io and voltage V are plotted. lab manual experiment names. 2. Make the connections as per the circuit diagram. Note the readings of Ammeters. Uploaded 3 years ago . 7 Theory: A transformer is a static device which transfers the electrical energy from one circuit to another circuit without any change in the frequency. Upgrade to Prime and access all answers at a price as low as Rs.49 per month. have taken efforts in providing the Regulation 2017 EEE Laboratory Manuals in PDF format. ELECTRICAL MACHINE LAB. 6. DEPARTMENT OF ELECTRICAL & ELECTRONICS ENGINEERING 13 14. Apply rated voltage with the help of autotransformer across LV winding, with the HV winding as open circuited. Tech I Semester (JNTUA-R15) Mr. K. Raju,Assistant Professor CHADALAWADA RAMANAMMA ENGINEERING COLLEGE (AUTONOMOUS) Chadalawada Nagar, Renigunta Road, Tirupati – 517 506 Department of Electrical and Electronics Engineering High blood pressure or hypertension affects more people than one can possibly think. 3. (in Watts) = Wattmeter Reading*M.F Short circuit current=Ammeter reading= I sc Voltmeter Reading = V sc Copper loss = Wattmeter Reading =W sc Calculate the values of R 01, X 01, Z 01. 2. 3. So, practice with enough care and attention in handling electrical equipment and follow safety practices in the laboratory. C TEST 1. A.C. Electrical Machines Lab GRIET/E.E.E. As more and more doctors recommend people to use home blood pressure monitors to keep a regular check on their blood pressure readings at home, there is a common debate regarding which type of blood pressure testing machines are better – automated or manual blood pressure readings.

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