EMEC Laboratory



The lab is used for course no EE380A & EE381A (Electrical Engineering Laboratory) and is located in WL112

Contact No: 7849


Lab Instruments




Electromechanical Energy Conversion (EMEC) Laboratory is the one the oldest and important laboratory of Electrical Engineering Department. The lab is equipped with conventional and modern electrical& electronic measuring equipments and ac & dc electrical machines. It is used for UG lab courses EE -380A & EE 381A. In the lab students study, learn & perform the experiments on different types of electrical machines such as - transformers, Synchronous motors, alternators, dc motors & generators, three phase and single phase induction motors, relays and controlled rectifiers to verify the different characteristics of the electrical machines.

  • Dr. A Joshi

  • Dr. S C Srivastava

  • Dr. S P Das

  • Dr. P. Sensarma

  • Dr. S N Singh

  • DC Rectifier Sets, 0-270 V, 100 Amps and 50 Amps.

  • Step Down Transformer, 25 kVA, 415/230V, 3-phase, 50Hz,

  • Three Phase Alternators coupled with DC Motors.

  • Open type dc & ac machines.

  • Synchronous Motor coupled with DC Generators.

  • Three Phase Squirrel cage Induction Motors

  • Three Phase Squirrel cage Induction Motors Coupled with DC shunt Generators.

  • Single phase Squirrel cage capacitor start capacitor run induction motors.

  • Single phase Squirrel cage capacitor start capacitor run induction motors coupled with DC shunt Generators.

  • Experimental tables with panel boards.

  • Single phase full and half controlled rectifier’s kits.

  • Step down transformers of various ratings.

  • Three and Single Phase Auto Transformers of various ratings.

  • Test setups of directional over current relay

  • Test setups of determination of phase sequence of three phase system.

  • Digital Storage Oscilloscopes.

  • Various ratings and various types of portable measuring equipments such as Watt meters, Voltmeters, Ammeters, Phase sequence indicator, Digital True RMS Multimeter, Electronic and rotary type Synchronoscopes.

  • Insulation Tester (test voltage up to 5 kV)

  • Clamp Meters,

  • Infrared Thermometer.

  • Current Probes.

  • Voltage Differential Probes.

  • Clamp on Earth Tester.

  • Digital Contact and Non-contact type Tachometers

  • Stroboscopes.

  • Programmable LCR Bridge.

  • Current Transformers.

  • Rheostats of various ratings.

  • Three Phase and Single phase resistive loads.

  • Three and single phase Capacitive Loads.

  • Three Phase and Single phase fixed & variable Inductors.

  • Experiment No 1

    • To perform Sumpner's test on two identical transformers and calculate their efficiency at 110%, 100%, 75% and 25% of full load at unity and 0.8 p.f. lagging

    • To separate the hysteresis and eddy current losses combined in the core of a 1-phase transformer under the rated conditions

  • Experiment No. 2

    • To conduct load flow studies on a power system using Power System software and study the effect of the following:
      (a) Generation rescheduling
      (b) Increasing transmission line length
      (c) Increasing system load
      (d) Shunt compensation (e) Series compensation

  • Experiment No. 3

    • To connect three single phase transformers into three-phase transformer bank and study the waveforms for various configurations.

  • Experiment No. 4

    • To perform no-load, blocked rotor and load tests on l-phase capacitor start-capacitor run induction motor and determine:
      (a) The parameters for the equivalent circuit.
      (b) Compute the performance of motor from the parameters and compare with experimental results.

  • Experiment No. 5

    • To perform no load, blocked rotor and load tests on a 3-phase squirrel cage induction motor and draw its equivalent circuit referred to the stator and calculate the efficiency of the motor.

    • Also obtain the performance characteristics of the motor theoretically from the equivalent circuit parameters and compare it with the experimentally obtained results.

  • Experiment No. 6

    • To perform open and short circuit tests on a synchronous generator and determine its synchronous impedance (i) neglecting saturation and
      (ii) considering saturation.

    • To determine an equivalent circuit of the generator using the synchronous impedance values determined in above (i) and (ii).

    • To determine and draw the terminal voltage versus load current characteristics of the generator for unity power factor load using the equivalent circuit determined in part 2 above.

    • Also to determine voltage regulation of the generator for unity power factor load.

  1. To study single phase AC regulator and its operation with R-load, and RL-load.

  2. To study single phase half controlled rectifier and its operation with R-load and RL–load.

  3. To obtain ‘V’ curves of a Synchronous Motor.

  4. (a) To Synchronize a Synchronous Generator with infinite bus Bar by Synchroscope and lamps methods.(b) To determine the maximum power transfer capacity across a transmission line in a single machine infinite bus system.

  5. (a) To study the directional inverse time over-current relay type CDD-21.(b) To determine the phase sequence or direction of phase rotation in a 3-phase system and compare it with the sequence determined by a phase sequence meter.

  6. To conduct experiment in the High Voltage lab to observe the followings. (a) Distinction between the types of electrostatic fields.(b) Different stages in gas breakdown.

  • High Current Transformer and test setups for temperature rise test

  • RCCB Test Setups.

  • MCCB Test setups.

  • Main Switches and Starters Test Setups except short circuit test.

  • Electrical Endurance and over load test Setup up to 800 amps for three phase and single phase RCCBs, MCCBs, Starters and Main switches.

  • Humidity Chamber.

  • AC High Voltage Break Down Tester.

  • Oven.

  • Sound Proof Box.

  • Leakage Current Clamp Meter.

Mr. Lekhraj Singh
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Location: WL112
Contact No: 7849

Mr. Lekhraj Singh
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Support staff: Mr. S.P. Sahu