High Voltage Laboratory



High voltage lab was quickly developed by Dr. C C Reddy for supporting lab component of high voltage engineering (EEL 314, EEL 705) for undergraduate students.It is located at Room No:136. Each year about 60 students are registering the course making the lab to run three times a week for lab work - one of the most busiest labs of the department.

The main aim of this is targeted at the B.Tech EE coursework. It would be simply terrible to imagine an EE student graduating from an IIT who has NOT seen how a standard disc insulator looks like, who has NOT seen the breakdown of an air-gap when voltage is increased, who has not seen how a string of insulators supports transmission conductors from towers, etc. The setup is being effectively utilized to demonstrate very simple yet meaningful experiments to young EE graduate students as a part of the coursework.

      AC (100 kV), DC (140 kV) and Impulse Voltage (440 kV) Generator   

Among the new generation IITs this is believed to be the first high voltage lab in the area of Electrical Engineering. The lab is also supporting/being supported by sponsored projects. Four Ph. D students are working/worked in the development of the lab. 


Experiments like conduction and breakdown in liquid, solid and gaseous dielectrics, voltage distribution across discs, breakdown of air under different electrode configurations to explain the concepts of unifrom and non-uniform field, discharges in gases, corona, measurement of ac/dc and impulse waveforms, traveling-wave phenomenon, capacitance, loss tangent, leakage currents, space charges, partial discharges etc. are part of the laboratory excercise.


The equipment is partly sponsored by the institute and the rest purchased from Dr. Reddy's projects.







1. Partial Discharge Measurement set up ( 100 kV) 
                                                        PD Measurement set up
2. Capacitance and loss tangent measurement system (12 kV)  
                            Loss tangent measurement system (12 kV)
3. Thermal imaging camera                                                      
4. Electrometers  
5. Digital Pico-ammeters  
6. Vacuum Oven  
7. Automatic Temperature Controllable Ovens   
8. High Frequency DSOs  
9. Nano - second, high voltage Pulse Generator
 10. High Voltage Regulated Power Supplies  
 11. Electrode arrangements  
  12. Corona Current Measurement System