Chegg Problem Solver Interview Questions and Answers

SF6 is used in electrical industries for insulation and arc quenching purposes.

• SF6 is commonly used as an insulating gas in high-voltage electrical equipment such as circuit breakers, switchgear, and transformers.

• It is also used as a dielectric medium in gas-insulated substations (GIS) and gas-insulated lines (GIL).

• SF6 is highly effective in extinguishing electrical arcs and preventing electrical breakdowns.

• Its excelle...read more

The dielectric strength of air is the maximum electric field that air can withstand before it breaks down and conducts electricity.

• Dielectric strength is measured in volts per meter (V/m).

• The dielectric strength of air is approximately 3 million V/m.

• Higher humidity levels can decrease the dielectric strength of air.

• Dielectric strength is an important factor in determining the insulation properties of materials.