Question

Comparison between gas insulated substation and air insulated substation

Answer 1

Answer:

GIS high voltage substation engineering uses the gas sulfur hexafluoride for insulation, whereas AIS uses air insulation in a metal-clad system.

GIS systems are significantly easier to care for on a regular basis as they offer front instead of rear access.

AIS flashes are rare in GIS because all the interior elements are insulated, with only the cable compartment being accessible.

GIS drives only need to be re-greased after about 20 years .

AIS breaker will need about four hours of maintenance for each two-year period.

Hope it helps! ! !