Overview
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.
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Dr. A Joshi
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Dr. S C Srivastava
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Dr. S P Das
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Dr. P. Sensarma
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Dr. S N Singh
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DC Rectifier Sets, 0-270 V, 100 Amps and 50 Amps.
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Step Down Transformer, 25 kVA, 415/230V, 3-phase, 50Hz,
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Three Phase Alternators coupled with DC Motors.
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Open type dc & ac machines.
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Synchronous Motor coupled with DC Generators.
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Three Phase Squirrel cage Induction Motors
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Three Phase Squirrel cage Induction Motors Coupled with DC shunt Generators.
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Single phase Squirrel cage capacitor start capacitor run induction motors.
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Single phase Squirrel cage capacitor start capacitor run induction motors coupled with DC shunt Generators.
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Experimental tables with panel boards.
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Single phase full and half controlled rectifier’s kits.
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Step down transformers of various ratings.
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Three and Single Phase Auto Transformers of various ratings.
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Test setups of directional over current relay
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Test setups of determination of phase sequence of three phase system.
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Digital Storage Oscilloscopes.
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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.
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Insulation Tester (test voltage up to 5 kV)
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Clamp Meters,
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Infrared Thermometer.
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Current Probes.
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Voltage Differential Probes.
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Clamp on Earth Tester.
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Digital Contact and Non-contact type Tachometers
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Stroboscopes.
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Programmable LCR Bridge.
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Current Transformers.
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Rheostats of various ratings.
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Three Phase and Single phase resistive loads.
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Three and single phase Capacitive Loads.
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Three Phase and Single phase fixed & variable Inductors.
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Experiment No 1
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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
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To separate the hysteresis and eddy current losses combined in the core of a 1-phase transformer under the rated conditions
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Experiment No. 5
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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.
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Also obtain the performance characteristics of the motor theoretically from the equivalent circuit parameters and compare it with the experimentally obtained results.
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Experiment No. 6
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To perform open and short circuit tests on a synchronous generator and determine its synchronous impedance (i) neglecting saturation and
(ii) considering saturation.
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To determine an equivalent circuit of the generator using the synchronous impedance values determined in above (i) and (ii).
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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.
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Also to determine voltage regulation of the generator for unity power factor load.
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To study single phase AC regulator and its operation with R-load, and RL-load.
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To study single phase half controlled rectifier and its operation with R-load and RL–load.
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To obtain ‘V’ curves of a Synchronous Motor.
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(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.
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(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.
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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.
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High Current Transformer and test setups for temperature rise test
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RCCB Test Setups.
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MCCB Test setups.
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Main Switches and Starters Test Setups except short circuit test.
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Electrical Endurance and over load test Setup up to 800 amps for three phase and single phase RCCBs, MCCBs, Starters and Main switches.
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Humidity Chamber.
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AC High Voltage Break Down Tester.
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Oven.
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Sound Proof Box.
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Leakage Current Clamp Meter.
Mr. Lekhraj Singh
Email:
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Location: WL112
Contact No: 7849
Lab-in-charge:
Mr. Lekhraj Singh
Email:
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Support staff: Mr. S.P. Sahu
