A substation is a part of an electrical grid. It is a collection of equipment that changes the voltage and current of electricity before it is sent to homes and businesses. A substation has two main parts: the primary side and the secondary side.
The primary side consists of high-voltage power lines that bring electricity into the substation. The secondary side consists of lower-voltage power lines that take electricity from the substation to homes and businesses.
A substation is an electrical installation where power from a high-voltage transmission system is transformed to a lower voltage for distribution. Substations are also used to change the voltage of alternating current (AC) from one level to another. A typical substation includestransformers, switchgear, circuit breakers, and other equipment necessary to control the flow of electricity in an electric power system.
GIS technology is playing an increasingly important role in the design and operation of modern substations. By integrating all of the data associated with a substation into a single 3D model, GIS provides a powerful tool for planning, designing, and managing substations.
The use of GIS allows for better visualization of proposed changes to a substation, as well as more accurate simulation of how those changes will impact the overall operation of the facility.
In addition, GIS can be used to create virtual “walk-throughs” of proposed changes, allowing stakeholders to get a better understanding of how those changes will impact operations.
As the use of GIS in substation design and operation becomes more widespread, it is clear that this technology has considerable potential to improve the efficiency and effectiveness of these critical facilities.
GIS Substation 132KV
Gis Substation Working Principle
A GIS (geographic information system) is a computer system that allows you to store, manipulate, and analyze data with geographic references. In other words, it lets you answer questions like “Where are all the power substations in my state?” or “What is the population density of my city?”
GIS systems typically have three components: hardware, software, and data.
The hardware is the physical equipment on which the system runs, including servers, workstations, and storage devices. The software consists of the programs used to create and maintain the GIS databases. And finally, the data itself can be stored in vector or raster format (or both).
Vector data are points, lines, or polygons that represent features on the earth’s surface. They can be used to represent things like roads, rivers, or political boundaries. Vector data are often stored as shapefiles (.shp) or personal geodatabase files (.gdb).
Raster data are images that have been digitized into a grid of cells. Each cell contains a value that represents some characteristic of the feature it covers. Raster data can be used to represent things like elevation changes or land use patterns.
Raster data are often stored as TIFF (.tif) files or MrSID files (.sid).
Gis Substation in India
The GIS substation in India is one of the most technologically advanced substations in the world. The substation uses a gas-insulated switchgear (GIS) to help protect against power outages and other problems. The GIS substation is located in Mumbai, India.
Gas Insulated Substation Ppt
A gas insulated substation (GIS) is a type of electrical substation in which the major components are enclosed in a sealed environment with an insulating gas. The key advantage of a GIS over an air-insulated substation (AIS) is its smaller footprint and resulting lower land costs. A GIS also has other advantages, including reduced vulnerability to weather-related outages and enhanced reliability.
The first GIS was installed in Switzerland in 1954. By 2013, the global installed base of GIS had grown to almost 36,000 substations with a total capacity of 565 GW – about 10% of the world’s power-generating capacity.
The main disadvantages of GIS are their high initial cost and the difficulty of maintenance.
For these reasons, GIS are usually only used for high voltage applications where space constraints or other factors make AIS impractical.
Gis Substation Design Pdf
The electric power industry is undergoing a major transformation as utilities move away from traditional centralized generation and adopt more distributed, renewable resources. This shift is driving changes in the way substations are designed and operated.
GIS-based substation design is becoming increasingly common as utilities strive to improve efficiency and reliability while reducing costs.
A GIS-based substation design allows for the integration of all relevant data into a single platform, providing a clear overview of the entire system. This approach can help identify potential problems before they occur, leading to improved reliability and reduced maintenance costs.
In addition to improved design, GIS-based substation solutions can also provide real-time monitoring and control capabilities.
This can help reduce downtime by providing early warning of problems and allowing for remote troubleshooting. By leveraging the power of GIS, utilities can achieve greater operational efficiency and flexibility in their substations.
Advantages of Gas Insulated Substation
A gas insulated substation (GIS) is a high voltage substation in which the equipment is enclosed in a gas-filled enclosure. This provides a number of advantages over air insulated substations (AIS), including:
1. Reduced Space Requirements: GIS requires less space than AIS for a given voltage and power rating, due to the smaller size of the equipment.
This can be especially important in urban areas where land is at a premium.
2. Improved Safety: Gas insulated substations are much safer than air insulated substations, as there is no risk of arc flash or fire due to the presence of flammable materials (e.g., oil). In addition, GIS are typically located away from populated areas, further reducing the risk to people and property.
3. Enhanced Reliability: The reliability of GIS is improved due to the elimination of potential failure points associated with air-insulated equipment (e.g., insulation breakdown). In addition, GIS are typically equipped with redundancies that further improve reliability.
4. Lower Maintenance Costs: The sealed environment of GIS reduces the need for regular maintenance and inspection, resulting in lower costs over time.
Gas Insulated Substation Wikipedia
A gas insulated substation (GIS) is a substation in which the primary equipment is contained in a sealed environment with sulfur hexafluoride (SF6) gas as the insulating medium. A GIS is typically more expensive to build than an equivalent air-insulated substation (AIS), but its compact footprint can save considerable land costs, particularly in densely populated urban areas. Its main disadvantages are its high initial cost and the need for skilled personnel to maintain it.
The first GIS was built in Switzerland in 1954. The technique was developed further by ABB and other manufacturers, notably Siemens AG and Alstom. As of 2013, about 50% of new HV/EHV installations worldwide were using GIS technology.
GIS reduces the size of electrical installations because the primary components are contained within hermetically sealed enclosures filled with pressurized SF6 gas instead of being mounted on outdoor switchgear platforms. This eliminates the requirement for weather protection and security fencing around conventional AISs, resulting in a smaller physical footprint for a given voltage class installation. The reduced land area can result in significant savings when siting new HV/EHV lines or upgrading existing lines in densely populated urban areas where land is expensive.
Another advantage of GIS over AIS is that it minimizes arcing hazards due to its enclosed nature and use of pressurized SF6 gas as an arc quenching medium which quickly snuffs out arcs without releasing hazardous products into the atmosphere like air does. This results in increased safety for workers and the public near substations as well as decreased environmental impact compared to AISs . In addition, hermetically sealing equipment inside buildings protects against ingress of water, dust, animals, birds etc., which can cause problems ranging from simple soiling requiring cleaning to complete failure .
However, this comes at the expense of increased complexity compared to AISs due largely to maintenance requirements associated with SF6 gas leakage , pressure swing adsorption systems used to purify leaked SF6 gas before it is released into the atmosphere , and strict regulatory reporting requirements regarding atmospheric emissions .
Credit: www.powermag.com
What Does Gis Stand for in Substation?
GIS stands for Geographic Information System. It is a system that allows substation personnel to easily visualize, manage and analyze data associated with the geographical location of substations. The GIS system can be used to track the location of equipment, underground cables, power lines and other infrastructure.
Additionally, GIS can be used to create maps and 3D models of the substation area which can be used for planning and maintenance purposes.
What are the Advantages of Gis Substation?
There are many advantages to using GIS for substation applications. Perhaps the most important advantage is that it allows for a more complete and accurate picture of the electrical system. This is because all of the data associated with the substation – such as equipment locations, conductor paths, and transformer connections – can be displayed in one place.
This can help identify potential problems and areas where improvements can be made.
Another advantage of GIS is that it provides a great deal of flexibility when it comes to displaying information. For example, operators can choose to view the data in 2D or 3D, as well as change the level of detail that is shown.
This makes it easier to find specific information when needed. Additionally, GIS-based substation applications often come with a variety of analysis tools that can be used to assess system performance and identify areas for improvement.
Overall, GIS provides many benefits for those who manage substations.
It offers a more complete view of the system, allows for flexible display options, and comes with powerful analysis capabilities. When used correctly, GIS can help improve substation operations and make them more efficient.
What is Difference between Ais And Gis Substation?
There are a few key differences between AIS and GIS substations. For one, AIS substations are typically smaller in size than GIS substations. Additionally, AIS substations typically have fewer secondary components than GIS substations.
Finally, AIS substations tend to be less expensive to build and maintain than GIS substations.
What is the Disadvantage of Gis Substation?
There are a few disadvantages of GIS substations that should be considered before choosing this option for your power system. One disadvantage is the cost. GIS substations can be more expensive than traditional substations, both to build and to maintain.
Additionally, GIS substations require more space than traditional substations, so they may not be an option in areas where land is limited or expensive. Finally, GIS substations can be more complex than traditional substations, so they may require more training for operators and maintenance personnel.
Conclusion
Substation is an important part of the power grid, and GIS can be used to help plan, design, and build substations. GIS can be used to create maps that show the location of existing substations, as well as potential locations for new substations. GIS can also be used to create 3D models of substations, which can be helpful in planning and designing new substations.
