Laboratories

1. Familiarization of electronic components and devices (Testing of semiconductor diodes and transistors using digital multimeter).
2. Study and use of Oscilloscope, signal generator to view waveforms and measure amplitude and frequency of a given waveform.
3. V-I characteristics of semiconductor diode and determining its DC and AC resistance.
4. Studies on half-wave and full-wave rectifier circuits without and with capacitor filter; recording of the waveforms and measurement of average and rms values of the rectifier output.
5. V-I characteristic of an n-p-n or p-n-p transistor, DC biasing the transistor in common-emitter configuration and determination of its operating point (i.e., various voltages and currents).
6. Studies on Logic gates (Truth table verification of various gates).

1. Study of different electrical equipments.
2. Power factor improvement using capacitor for fluorescent lamp.
3. Verification of Superposition and Thevenin’s theorem.
4. Polarity test of transformer.
5. Power measurement using 2-wattmeter method.
6. Calculation of current, voltage and power in series R-L-C circuit excited by single phase AC supply and calculation of power factor.

1. Verification of Network Theorems (Superposition, Thevenin, Norton, Maximum Power Transfer).
2. Study of DC and AC Transients.
3. Determination of circuit parameters: Open Circuit and Short Circuit parameters.
4. Determination of circuit parameters: Hybrid and Transmission parameters.
5. Frequency response of Low pass and High Pass Filters.
6. Frequency response of Band pass and Band Elimination Filters.
7. Determination of self inductance, mutual inductance and coupling coefficient of a single phase two winding transformer representing a coupled circuit.
8. Study of resonance in R-L-C series circuit.
9. Study of resonance in R-L-C parallel circuit.
10. Spectral analysis of a non-sinusoidal waveform.

1. Determination of critical resistance & critical speed from no load test of a DC shunt generator.
2. Plotting of external and internal characteristics of a DC shunt generator.
3. Speed control of DC shunt motor by armature voltage control and flux control method.
4. Determination of efficiency of DC machine by Swinburne’s Test and Brake Test.
5. Determination of efficiency of DC machine by Hopkinson’s Test.
6. Determination of Efficiency and Voltage Regulation by Open Circuit and Short Circuit test on single phase transformer.
7. Polarity test and Parallel operation of two single phase transformers.
8. Back-to Back test on two single phase transformers.
9. Determination of parameters of three phase induction motor from No load Test and Blocked Rotor Test.
10. Determination of Efficiency, Plotting of Torque-Slip Characteristics of Three Phase Induction motor by Brake Test.

1. Determination of the voltage regulation of an alternator by zero power factor (zpf) method
2. Determination of the V and inverted V curves of a synchronous motor
3. Speed control of a three phase induction motor using variable frequency drives
4. Determination of parameters of synchronous machine
   (a) Positive sequence reactance
   (b) Negative sequence reactance
   (c) Zero sequence reactance
5. Determination of power angle characteristics of an alternator
6. Determination of parameter of a single phase induction motor and study of
   (a) Capacitor start induction motor
   (b) Capacitor start and capacitor run induction motor
   (c) Universal motor
   (d) Shaded pole motor
7. Study of parallel operation of two alternators
8. Measurement of direct and quadrature axis reactance of a salient pole synchronous machine.
9. Measurement of transient and sub transient reactance of a salient pole alternator
10. Performance of grid connected induction generator.
11. Three phase transformer connections ( Star, Delta and Scott).
12. Determination of voltage regulation of alternator by synchronous impendence method.

1. Measurement of Low Resistance by Kelvin’s Double Bridge Method.
2. Measurement of Self Inductance and Capacitance using Bridges.
3. Study of Galvanometer and Determination of Sensitivity and Galvanometer Constants.
4. Calibration of Voltmeters and Ammeters using Potentiometers.
5. Testing of Energy meters (Single phase type).
6. Measurement of Iron Loss from B-H Curve by using CRO.
7. Measurement of R, L, and C using Q-meter.
8. Measurement of Power in a single phase circuit by using CTs and PTs.
9. Measurement of Power and Power Factor in a three phase AC circuit by two-wattmeter method.
10. Study of Spectrum Analyzers.

1. Study of a dc motor driven position control system
2. Study of speed torque characteristics of two phase ac servomotor and determination of its transfer function
3. Obtain the frequency response of a lag and lead compensator
4. To observe the time response of a second order process with P, PI and PID control and apply PID control to servomotor
5. To determine the transfer function of a system(network) using transfer function analyser.
6. To study and validate the controllers for a temperature control system
7. To study the position control system using Synchros
8. Measurement of unknown resistance, inductance and capacitance using bridges
9. To plot the displacement-voltage characteristics of the given LVDT
10. Measurement of temperature-voltage characteristics of J-type thermocouple
11. Use a strain gauge to plot the curve between strain applied to a beam and the output voltage
12. Study of resistance-voltage characteristics of Thermistors
13.  To study on the interface of PLC with PC for data acquisition applications
14. Measurement of speed by using magnetic pick up.

1. Study of the V-I characteristics of SCR, TRIAC and MOSFET.
2. Study of the V-I characteristics of UJT
3. To measure the latching and holding current of a SCR
4. (a)Study of the synchronized UJT triggering circuit.
   (b) Study of the cosine controlled triggering circuit
5. Study of the single phase half wave controlled rectifier and semi converter circuit with R and R-L Load
6. Study of single phase full wave controlled rectifier circuits(mid point and Bridge type) with R and R-L Load
7. Study of three phase full wave controlled rectifier circuits(Full and Semi converter) with R and R-L Load
8. Study of the forward converter (Buck converter) and flyback converter(boost converter) operation.
9. Study of the single phase pwm voltage source inverter.
10. Study the performance of three phase VSI with PWM control.
11. Study the performance of single phase AC Voltage controller with R and R-L Load
12. Study of the resonant inverter.

SEC-A (Design Using MATLAB) (Any one)

1. Design of single phase/3-phase transformers
2. Design of 3-phase induction motor
3. Design of 3-phase synchronous generator

SEC-B (Simulation Using SIMULINK) (Any two)

1. Simulation of 1-phase HW/FW Rectifier with R/RL Load
2. Simulation of 3-phase Controlled Rectifier with R/RL Load
3. Simulation of 1-phase/ 3-phase Inverter

SEC-C (Design/Simulation Using MATLAB/ SIMULINK) (Any two)

1. Obtaining time response of a given feedback control system to unit step/ ramp input
2. Obtaining frequency response (Bode plot & Polar Plot) of a given feedback control

system

3. Design & Simulation of P / PI / PID Controller

1. Speed Control of Single Phase Induction Motor by using Single Phase AC to AC Converter.
2. Speed Control of Separately Excited DC Shunt Motor using Single Phase Fully Controlled AC to DC Converter.
3. Speed Control of Separately Excited DC Shunt Motor using Four-Quadrant Chopper.
4. Speed Control of Separately Excited DC Shunt Motor using Single Phase Dual Converter.
5. Speed Control of Three Phase Squirrel Cage Induction Motor using Three Phase AC to AC Controller.
6. Speed Control of Three Phase Squirrel Cage Induction Motor using Three Phase PWM Inverter.
7. Speed Control of Three Phase Slip Ring Induction Motor using Rheostatic Control Method.
8. Speed Control of DC Shunt Motor using Three Phase AC to DC Converter.
9. Determination of the Transfer Function of DC Shunt Motor.
10. Determination of the Moment of Inertia of DC Shunt Motor Drive System by Retardation Test.

Group A: HARDWARE BASED

1. To determine negative and zero sequence synchronous reactance of an alternator.
2. To determine sub-transient direct axis and sub-transient quadrature axis

synchronous reactance of a 3-ph salient pole alternator.

3. 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.

4. To study the IDMT over-current relay and with different plug setting and time setting

multipliers and plot its time – current characteristics.

5. To determine the operating characteristics of biased different relay with different %

of biasing.

6. To study the MHO and reactance type distance relays.
7. To determine A, B, C, D parameters of an artificial transmission line.
8. To compute series inductance and shunt capacitance per phase per km of a three

phase line with flat horizontal spacing for single stranded and bundle conductor

configuration.

9. To determine location of fault in a cable using cable fault locator.
10. To study the Ferranti Effect and voltage distribution in HV long transmission line

using transmission line model.

11. Insulation test for Transformer oil.
12. a) Study of various types of Lightning arrestors.
13. b) Study of layout of outdoor pole mounted & plinth mounted sub-stations.

Group B : SIMULATION  BASED (USING MATLAB OR ANY OTHER SOFTWARE)

1. To obtain steady-state, transient and sub-transient short-circuit currents in an

alternator.

2. To formulate the Y-Bus matrix and perform load flow analysis.
3. To compute voltage, current, power factor, regulation and efficiency at the

receiving end of a three phase Transmission line when the voltage and power at

the sending end are given. Use П model.

4. To perform symmetrical fault analysis in a power system.
5. To perform unsymmetrical fault analysis in a power system.
6. Write a program in ‘C’ language to solve economic dispatch problem of a power

system with only thermal units. Take production cost function as quadratic and

neglect transmission loss.