Electrical & Electronics Engineering

Laboratory


BASIC ELECTRICAL ENGINEERING LAB

Basic Electric Engineering Lab
1. Verification of Kirchhoff’s laws.
2. Measurement of power and power factor in a single phase ac series inductive circuit and study improvement of power factor using capacitor.
3. Study of phenomenon of resonance in RLC series circuit and obtain resonant frequency.
4. Connection and measurement of power consumption of a fluorescent lamp (tube light).
5. Measurement of power in 3- phase circuit by two-wattmeter method and determination of its power factor for star as well as delta connected load.
6. Determination of parameters of ac single phase series RLC circuit
7. Determination of (i) Voltage ratio (ii) polarity and (iii) efficiency by load test of a single phase Transformer 8. Determination of efficiency of a dc shunt motor by load test.
8. To study running and speed reversal of a three phase induction motor and record speed in both directions.
9. Demonstration of cut-out sections of machines: dc machine, three phase induction machine, single-phase induction machine and synchronous machine.
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ELECTRICAL MEASUREMENTS AND INSTRUMENTATION LAB

ELECTRICAL MEASUREMENTS AND INSTRUMENTATION
1. Calibration of AC voltmeter and AC ammeter.
2. Measurement of inductance using Maxwell’s Bridge.
3. Measurement of capacitance using Schering Bridge.
4. Measurement of low resistance using Kelvin’s Double Bridge.
5. Measurement of Power using CT and PT.
6. Measuring displacement using LVDT.
7. Measuring temperature using thermocouple.
8. Measuring pressure using piezoelectric pick up.
9. Measurement of speed of DC motor by photoelectric pick up
10. Speed measurement using Hall Effect sensor.
11. PC based data logging of temperature sensor using LabVIEW/ MATLAB.
12. Signal conditioning of analog signal using LabVIEW/ MATLAB
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NETWORK ANALYSIS AND SYNTHESIS LAB

Network Analysis and Synthesis
1. Verification of Maximum power transfer theorem.
2. Verification of Tallegen's theorem.
3. Study of phenomenon of resonance in RLC series circuit and obtain resonant frequency.
4. Design and find cut-off frequency of low pass and high pass filters.
5. Design and find the pass band frequencies of band pass filters.
6. Design and find the stop band frequencies of band reject filters.
7. Determination of two port network Z and h parameters.
8. Verification of parameters properties in interconnection of 2, two port networks in series-series interconnection.
9. Verification of parameters properties in interconnection of 2, two port networks in parallel-parallel interconnection.
10. Determination of Z parameters of a T network and Computation of corresponding parameters to equivalent π network.
11. To perform the transient response of RL circuit.
12. Verification of parameters properties in interconnection of 2, two port networks in cascade interconnection.
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ELECTRICAL MACHINES-I LAB

ELECTRICAL MACHINES-I LAB
1. To obtain magnetization characteristics of a DC shunt generator.
2. To obtain load characteristics of a DC shunt generator andcompound generator (a) Cumulatively compounded (b) Differentially compounded.
3. To obtain efficiency of a DC shunt machine using Swinburne’s test.
4. To perform Hopkinson’s test and determine losses and efficiency of DC machine.
5. To obtain speed- torque characteristics of a DC shunt motor.
6. To obtain speed control of DC shunt motor using (a) armature resistance control (b) field control.
7. To obtain speed control of DC separately excited motor using Ward-Leonard.
8. To obtain equivalent circuit, efficiency and voltage regulation of a single-phase transformer using O.C. and S.C. tests.
9. To obtain efficiency and voltage regulation of a single-phase transformer by Sumpner’s test.
10. To obtain 3-phase to2-phase conversion by Scott connection.
11. To demonstrate the parallel operation of three phase transformer and to obtain the load sharing at a load.
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CONTROL SYSTEM LABORATORY

CONTROL SYSTEM LABORATORY
1. To determine speed-torque characteristics of an AC servomotor.
2. To study i) Synchro Transmitter characteristics. ii) Obtain Synchro Transmitter – Receiver output vs input characteristics.
3. To determine response of first order and second order systems for step input for various values of constant ’K’ using linear simulator unit and compare theoretical and practical results.
4. To study characteristics of positional error detector by angular displacement of two servo potentiometers.
5. To simulate and compare the response of 2nd order system with and without lead, lag, Lead- Lag compensator / simulate PID controller for transportation lag.
6. To study P, PI and PID temperature controller for an oven and compare their characteristics.
7. To study performance of servo voltage stabilizer at various loads using load bank.
8. To study behavior of separately excited dc motor in open loop and closed loop conditions at various loads.
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ELECTRICAL MACHINE-II LAB

ELECTRICAL MACHINE-II LAB
1. To perform no load and blocked rotor tests on a three phase squirrel cage induction motor and determine equivalent circuit.
2. To perform load test on a three phase induction motor and draw Torque -speed characteristics.
3. To perform no load and blocked rotor tests on a single phase induction motor and determine equivalent circuit.
4. To study speed control of three phase induction motor by varying supply voltage and by keeping V/f ratio constant.
5. To perform open circuit and short circuit tests on a three phase alternator.
6. To determine V-curves and inverted V-curves of a three phase synchronous motor.
7. To determine the direct axis reactance (Xd) and quadrature axis reactance (Xq) of synchronous machine.
8. To study synchronization of an alternator with the infinite bus by using: (i) dark lamp method (ii) two bright and one dark lamp method.
9. To determine speed-torque characteristics of three phase slip ring induction motor and study the effect of including resistance, or capacitance in the rotor circuit.
10. To determine speed-torque characteristics of single phase induction motor and study the effect of voltage variation.
11. To determine speed-torque characteristics of a three phase induction motor by (i) keeping v/f ratio constant (ii) increasing frequency at the rated voltage.
12. To draw O.C. and S.C. characteristics of a three phase alternator from the experimental data and determine voltage regulation at full load, and unity, 0.8 lagging and leading power factors.
13. To determine steady state performance of a three phase induction motor using equivalent circuit. Load Test on Three Phase Alternator.
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POWER SYSTEM LAB-II

POWER SYSTEM LAB-II
1. To determine fault current for L-G, L-L, L-L-G and L-L-L faults at the terminals of an alternator at very low excitation.
2. To Study the over-current relay and the effect of PSM and TSM.
3. To study percentage differential relay.
4. To study Impedance, MHO and Reactance type distance relays and zones of protection.
5. To study Ferranti effect of a transmission line/cable.
6. To measure the dielectric Strength of transformer oil.
7. To study the Synchronization of alternator with infinite bus bar.
8. To determine positive sequence, negative sequence and zero sequence reactance of an alternator.
9. To Study the effect of different shape of electrodes on dielectric (air) breakdown.
10. To Study the gas actuated Buchholz relay for oil filled transformer.
11. To determine the sub-transient (xd″), transient (xd′) and steady state reactance (xd) of a synchronous machine.
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POWER ELECTRONICS LAB

POWER ELECTRONICS LAB
1. To study triggering of (i) IGBT (ii) MOSFET (iii) power transistor.
2. To study V-I characteristics of SCR and measure latching and holding currents.
3. To compare the R, RC & UJT trigger circuit for SCR.
4. To study the commutation circuit for SCR.
5. To study single phase fully controlled bridge rectifiers with resistive and inductive loads.
6. To study single phase fully controlled bridge rectifiers with DC motor load.
7. To study three-phase fully controlled bridge rectifier with resistive and inductive loads.
8. To study single-phase ac voltage regulator with resistive and inductive loads.
9. To study single phase cyclo-converter
10. To study the four quadrant operation of chopper circuit
11. To study MOSFET/IGBT based single-phase bridge inverter.
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INDUSTRIAL AUTOMATION & PLC LAB

INDUSTRIAL AUTOMATION & PLC LAB
A) Industrial Automation:
1. Study hardware and software platforms for DCS.
2. Simulate analog and digital function blocks.
3. Study, understand and perform experiments on timers and counters.
4. Logic implementation for traffic Control Application.
5. Logic implementation for Bottle Filling Application.
6. Tune PID controller for heat exchanger using DCS.
7. FBD for auto-clavable laboratory fermenter.
8. Develop graphical user interface for the fermenter plant
B) PLC :
1. Study hardware and software used in PLC.
2. Implementation Logic Gates.
3. Implementation of DOL Starter.
4. Implementation of On-Delay Timer.
5. Implementation of Off-Delay Timer.
6. Implementation of Up-Down Counter.
7. Implementation of PLC Arithmetic Instructions.
8. Implementation of PID Controller