TITLE: DETERMINATION OF BREAKDOWN VOLTAGE WITH DC VOLTAGE.

OBJECTIVE: To compare the breakdown voltage for different electrode configuration with a particular gap distance.

CIRCUIT DIAGRAM: Click to see

EQUIPMENTS:

• HV test transformer
• Measuring capacitor
• Coupling capacitor
• DGM DC Voltmeter
• DTM Partial discharge meter
• AKV Coupling quadripole
• PDG pulse generator
• Discharge rod
• HV flexible connector
• Series filter
• Electronic grounding switch
• Electrode
• Silicon diode rectifier
• Measuring resistor
• Floor pedestal
• Connecting cup
• Connecting rod
• Spacer tube
• Insulating rod

ELECTRODE CONFIGURATION

• Point-plane gap
• Sphere gap
• Rod-sphere gap

PROCEDURE:

• Connect the circuit according to the connection diagram.
• Check earthing properly before starting the experiment.
• Run 1: Determine the correction factor of the circuit as mentioned before.
• Run 2: Choose point-plane electrode configuration with 10 mm. gap distance and perform the experiment. Note down the reading shown on DGM DC voltmeter.
• Run 3: Now invert both the diode and repeat Run 1.
• Run 4: Similarly, choose other electrode configuration and repeat Run 2 and Run 3.

EXPERIMENTAL RESULTS:

List out all the results in the spreadsheet provided here.