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High Voltage Laboratory Department of Electrical Engineering, Indian Institute of Technology, Kharagpur.

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Page 1: High Voltage Laboratory - Department of Electrical Engineering · 4 Department of Electrical Engineering IIT Kharagpur Transformer Oil Test Kit 60 kV High Voltage AC Test Source 30

High Voltage Laboratory

Department of Electrical Engineering, Indian Institute of Technology,

Kharagpur.

Page 2: High Voltage Laboratory - Department of Electrical Engineering · 4 Department of Electrical Engineering IIT Kharagpur Transformer Oil Test Kit 60 kV High Voltage AC Test Source 30

2 Department of Electrical Engineering

IIT Kharagpur

One of the Oldest laboratories of Electrical Engineering Department, IIT Kharagpur

Maximum rating is 600 kV

Major Activities Research & Development Consultancy Classes for Undergraduates and

Postgraduates

Page 3: High Voltage Laboratory - Department of Electrical Engineering · 4 Department of Electrical Engineering IIT Kharagpur Transformer Oil Test Kit 60 kV High Voltage AC Test Source 30

3 Department of Electrical Engineering

IIT Kharagpur

Equipments In the Laboratory

Page 4: High Voltage Laboratory - Department of Electrical Engineering · 4 Department of Electrical Engineering IIT Kharagpur Transformer Oil Test Kit 60 kV High Voltage AC Test Source 30

4 Department of Electrical Engineering

IIT Kharagpur

Transformer Oil Test Kit 60 kV

High Voltage AC Test Source

30 kVA , 0.4 / 300 kV , 50/0.05 A, 50 Hz

Impulse Voltage Generator

600 kV , 18 kJ

Page 5: High Voltage Laboratory - Department of Electrical Engineering · 4 Department of Electrical Engineering IIT Kharagpur Transformer Oil Test Kit 60 kV High Voltage AC Test Source 30

5 Department of Electrical Engineering

IIT Kharagpur

Impulse Current Generator

15 kA , 5 kJ

Partial Discharge Measurement

Capacitance and Tan Delta Measurement

Up to 12 kV level

Page 6: High Voltage Laboratory - Department of Electrical Engineering · 4 Department of Electrical Engineering IIT Kharagpur Transformer Oil Test Kit 60 kV High Voltage AC Test Source 30

6 Department of Electrical Engineering

IIT Kharagpur

Rectangular Current Pulse Generator

120 A , 15 ms ,4.5 kJ

High voltage DC source

10 kV , 0.3 A

Sphere Gap 50 cm diameter

Point, Plane, Sphere Electrodes 200 kV

Page 7: High Voltage Laboratory - Department of Electrical Engineering · 4 Department of Electrical Engineering IIT Kharagpur Transformer Oil Test Kit 60 kV High Voltage AC Test Source 30

7 Department of Electrical Engineering

IIT Kharagpur

Distribution Transformers

25 kVA, 11 kV/400 V, 50 Hz 100 kVA, 11 kV/433 V, 50 Hz

Pressure and temperature Measurement

Three Phase Variac

415/0-470 V, 200 A, 50 Hz

Page 8: High Voltage Laboratory - Department of Electrical Engineering · 4 Department of Electrical Engineering IIT Kharagpur Transformer Oil Test Kit 60 kV High Voltage AC Test Source 30

8 Department of Electrical Engineering

IIT Kharagpur

Single Phase Variac

240/0-270 V, 28 A, 50 Hz

Measuring Equipments

Oscilloscopes : 25 GS/s, 150 MHz 1 GS/s, 500 MHz 1 GS/s, 100 MHz Current Probes : 2000 A(peak), 400 volts

Electrometer : 2 V - 200 V, 20 pA – 20 mA, 2 kΩ – 200 GΩ, 20 nCoulomb – 20 μCoulomb

Page 9: High Voltage Laboratory - Department of Electrical Engineering · 4 Department of Electrical Engineering IIT Kharagpur Transformer Oil Test Kit 60 kV High Voltage AC Test Source 30

9 Department of Electrical Engineering

IIT Kharagpur

Various Activities of the Laboratory

Page 10: High Voltage Laboratory - Department of Electrical Engineering · 4 Department of Electrical Engineering IIT Kharagpur Transformer Oil Test Kit 60 kV High Voltage AC Test Source 30

10 Department of Electrical Engineering

IIT Kharagpur

Impulse Tests on Transformers

Impulse Voltage Generator 600 kV , 18 kJ

Page 11: High Voltage Laboratory - Department of Electrical Engineering · 4 Department of Electrical Engineering IIT Kharagpur Transformer Oil Test Kit 60 kV High Voltage AC Test Source 30

11 Department of Electrical Engineering

IIT Kharagpur

Corona discharges and breakdown Observations

Sphere – Sphere Point – Plane Plane – Plane Point – Point

High Voltage AC Test Source 30 kVA , 0.4 / 300 kV , 50 Hz

Page 12: High Voltage Laboratory - Department of Electrical Engineering · 4 Department of Electrical Engineering IIT Kharagpur Transformer Oil Test Kit 60 kV High Voltage AC Test Source 30

12 Department of Electrical Engineering

IIT Kharagpur

Partial Discharge Measurements of Transformer windings and Cables

Amount of Partial Discharge

Source of Partial Discharge

Page 13: High Voltage Laboratory - Department of Electrical Engineering · 4 Department of Electrical Engineering IIT Kharagpur Transformer Oil Test Kit 60 kV High Voltage AC Test Source 30

13 Department of Electrical Engineering

IIT Kharagpur

Condition Monitoring Of Transformers

HVAC testing up to 50 kV,

100 mA AC

Acoustic based Partial

Discharge measurement up to

50 kV

Page 14: High Voltage Laboratory - Department of Electrical Engineering · 4 Department of Electrical Engineering IIT Kharagpur Transformer Oil Test Kit 60 kV High Voltage AC Test Source 30

14 Department of Electrical Engineering

IIT Kharagpur

Capacitance Measurement of Cables

Capacitance and Tan delta measurement set up

Page 15: High Voltage Laboratory - Department of Electrical Engineering · 4 Department of Electrical Engineering IIT Kharagpur Transformer Oil Test Kit 60 kV High Voltage AC Test Source 30

15 Department of Electrical Engineering

IIT Kharagpur

Compaction of Nanomaterials using Rectangular Pulse Generator ( 120 Amps, 15 msec, 4.5 kJ)

Current Pulse at 122 A level

Page 16: High Voltage Laboratory - Department of Electrical Engineering · 4 Department of Electrical Engineering IIT Kharagpur Transformer Oil Test Kit 60 kV High Voltage AC Test Source 30

16 Department of Electrical Engineering

IIT Kharagpur

Design of Super Conducting Cables (CIC Type)

Sponsored R&D project by Institute of Plasma Research (IPR), Gujarat under National Fusion Program (NFP) To be used for Fusion Grade Magnets

Page 17: High Voltage Laboratory - Department of Electrical Engineering · 4 Department of Electrical Engineering IIT Kharagpur Transformer Oil Test Kit 60 kV High Voltage AC Test Source 30

17 Department of Electrical Engineering

IIT Kharagpur

Electroporation of microbial cells 10 kV , 0.2 amp Impulse voltage Generator

Sterilization of food and water by killing bacteria cell

membrane

Electrostatic separation of carbon from fly ash

10 kV HVDC source for separation

Collects carbon from fly ash

Page 18: High Voltage Laboratory - Department of Electrical Engineering · 4 Department of Electrical Engineering IIT Kharagpur Transformer Oil Test Kit 60 kV High Voltage AC Test Source 30

18 Department of Electrical Engineering

IIT Kharagpur

Transformer oil Testing

Finding out breakdown strength of oil

Insulation testing and finding surface resistance of various insulators Sources calibration and testing for other departments

Doctoral work in the area of electrical field computations employing Charge Simulation Method