What is the difference between air insulated substation and gas insulated substation?
GIS high voltage substation engineering uses the gas sulfur hexafluoride for insulation, whereas AIS uses air insulation in a metal-clad system. Sulfur hexafluoride is five times heavier than air and offers excellent extinction behavior.
What is outdoor air insulated substation?
Air Insulated Substation (AIS) or Outdoor Substations have all switchgear equipment, busbars and other switchyard equipment installed outside open to atmosphere. In earlier days for any voltage ratings AIS or outdoor substation is employed.
What is the advantage of GIS over AIS?
The main advantage of gas-insulated switchgear (GIS) over AIS or MTS is its compactness which has a direct influence on land requirement, land cost, visual impact, and possible technical applications.
What are the advantages and disadvantages of outdoor substation?
The outdoor substations have the following main advantages over indoor substations: (i) All the equipment is within view and therefore fault location is easier. (ii) The extension of the installation is easier, if required. (iii) The time required in erection of such substations is lesser.
What is the difference between air-insulated and gas-insulated switchgear?
The construction of each type of switchgear impacts its longevity and maintenance. GIS uses the gas sulfur hexafluoride for insulation, whereas AIS uses air insulation in a metal-clad system. Sulfur hexafluoride is five times heavier than air and offers excellent extinction behavior.
What is an insulated substation?
An electric power substation that has the busbars and equipment terminations generally open to air and utilizes insulation properties of ambient air for insulation to ground. Want to thank TFD for its existence?
What is air-insulated substation?
air-insulated substation. An electric power substation that has the busbars and equipment terminations generally open to air and utilizes insulation properties of ambient air for insulation to ground.
What is an AIS substation?
AIS Substation The AIS uses air as the primary dielectric from phase to phase, and phase to ground insulation. They have been in use for years before the introduction of GIS. Actually, most substations across all regions are AIS.
What is the function of a substation?
As an integral part of the transmission or distribution systems, the substation or switching station functions as a connection and switching point for generation sources, transmission or subtransmission lines, distribution feeders, and step-up and step-down transformers.