Our Solutions

Electrical Machines Lab

Electrical machines lab is one of the fundamental lab for the electrical engineering stream. The conventional machines laboratory courses can teach only the motor functionalities and drive concepts like  induction motors and DC motors. During the lab session, the students will vary the voltage and current, using the autotransformer and rheostat to control the speed and load test of the motor. While it is important to teach the conventional motor setups, it is also equally important to give an introductory experience to the motor drives setup, their pulse control & commutation, VFDs, etc. It will enable the students to stay in line with the present industry requirements.

We offer Data Acquisition & Control systems that can be interfaced with external drivers &  motors from industry vendors like Rockwell, Siemens, Kirloskar etc.

The compact RIO (cRIO) based NI embedded control platform gives an option to implement the PWM techniques for the inverters, DC-DC converters, 6 step commutation techniques, special machine control etc. The LabVIEW based graphical programming environment provides an intuitive method for students to acquire, visualize and process the signal from the experiment setup. With the help of these hardware setup, student can get the feel of motors and drives used in the industry.

 

 

•   Rich visualization of voltage, current, speed and other signals

•   Students can observe transients, spikes, phase differences, harmonics, etc. while doing the experiments

•   Open platform for Data acquisition & Control

•   In addition to learning the conventional motor concepts, the students can learn concepts related to PWM, SPWM, SVPWM, 6 step control, PID Control, etc.

•   Vrms, Irms, Apparent power, real power, power factor, harmonics, etc. can be computed by students in LabVIEW, rather than directly reading from the instruments.

•   Simple & powerful graphical programming approach using LabVIEW

•   The same LabVIEW, DAQ and cRIO are also used in industry for implementing test, measurement and control systems.

 

 

List of Experiments

•   3 phase induction motor – speed test

•   3 phase induction motor – load test

•   3 phase induction motor – No load and load test

•   Regulation of three phase alternator by EMF, MMF, ZPF, ASA methods

•   Regulation of three phase salient pole alternator by slip test

•   V and inverted V curves of three phase synchronous motor

•   NO load and blocked rotor test on three phase induction motor (determination of equivalent circuit parameters)

•   Separation of no-load losses of three phase induction motor

•   Load test on single phase transformer and three phase transformer

•   Open circuit and short circuit tests on single phase transformer

•   Separation of no-load losses in single phase transformer

•   Open circuit & load characteristics of DC Shunt generator

•   Load characteristics of DC compound generator with differential and cumulative connections

•   Load test on DC Shunt and compound motors

•   Load test on DC series motor

•   Swinburne’s test and speed control of DC shunt motor

•   Speed test on DC shunt motor

 

*We can work with you in making a list of experiments that suits your course needs.

Automation of the  Electrical Machines Lab