Substations – CONCO Group

CONCO is recognised as Africa’s largest high voltage substation construction provider, with a capacity to construct substations from 11kV to 765kV. Our specialised engineers design, procure, construct and commission the following types of substations: Conventional outdoor substations (AIS) Gas-insulated substations (GIS)Get price

GIS Data Downloads | EGIS

Apr 15, 2020 · South African Protected Areas Database (SAPAD) The South African Protected Areas Database is a GIS inventory of all protected and conservation areas in South Africa. Download the latest Protected and Conservations Areas (PACA) data, generate reports and statistics from the Protected Areas Register, comment and upload data on protected areasGet price

Tracking the pros cons of air and gas substations - ESI Africa

Jun 28, 2018 · Tracking the pros cons of air and gas substations. Taking into consideration that the cost of a GIS indoor substation is much higher compared to an AIS substation, it’s handy to have a quick reference guide to the pros and cons of both indoor and outdoor substations, writes John Greyling, switchgear specialist and Director of Hevilex, South Africa.Get price

GIS substations - Hitachi ABB Power Grids

Hitachi ABB Power Grids substations with gas-insulated switchgear (GIS) are unmatched when it comes to compactness, reliability, efficiency and safety, ensuring maximum power availability for utility, commercial and industrial customers. The robust and low maintenance GIS based design minimizes the substation’s footprint by as much as 70 percent, enabling it to be installed indoors, in busy urban areas and in harsh environments.Get price

Gas-Insulated Substations - GIS

Nov 10, 2010 · A gas-insulated substation (GIS) uses a superior dielectric gas, gaz sf6, at moderate pressure for phase-tophase and phase-to-ground insulation. The high voltage conductors, circuit breaker interrupters, switches, current transformers, and voltage transformers are in gaz sf6 gas inside grounded metal enclosures. The atmospheric air insulation used in a conventional, air-insulated substation (AIS) requires meters of air insulation to do what sf6 gas can do in centimeters.Get price

Gas-insulated switchgear (GIS) - Hitachi ABB Power Grids

Gas-insulated switchgear (GIS) Complete portfolio for all applications and environments Gas-insulated high-voltage switchgear (GIS) is a compact metal encapsulated switchgear consisting of high-voltage components such as circuit-breakers and disconnectors, which can be safely operated in confined spaces.Get price

Gas insulated substation (GIS) versus Air insulated

Oct 28, 2020 · Gas insulated substation (GIS) design. The metal-enclosed gas insulated switchgear inherently follows the criteria for new substation design and offers a higher reliability and flexibility than other solutions. Due to the gas enclosed design, GIS is the most suitable solution for indoor and underground substations.Get price

5 Differences Between Air-Insulated Substations and Gas

ConstructionInstallationOperationMaintenanceTotal Cost of OwnershipGIS high voltage substationengineering 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. Another significant construction-based difference between the two switchyards is that a metal-clad AIS uses three-position draw-out circuit breakers (on, off and test). GIS systems use fixed, mounted circuit breakers. The sealed mounted breakers are a ‘sealed-for-life’ technology, whereas the AIS breaker can be removed for maintenance and troubleshooting.Get price

Substation Equipment that secures the quality of electric

The Sulfr hexafluoride gas insulated transformer is valued for its high non-flammability, insulation performance, and safety. These characteristics contribute to the simple and oil-leakage free installation. In addition, the direct connection of Gas Insulated Switchgear and Gas Insulated Transformer would constitute a totally gas insulated substation.Get price

Introduction to Gas Insulated Substations / Switchgears (GIS)

Gas Insulated Substation (GIS) also called gaz sf6 Gas Insulated Metalclad Switchgear is preferred for 12kV, 36kV, 72.5kV, 145 kV, 245 kV, 420 kV, and above voltages. In a GIS substation, the various equipment like Circuit Breakers , Bus bars, Isolators, Load break switches, Current transformers, Voltage transformers, Earthing switches, etc. are housed in separate metal-enclosed modules filled with sf6 gas gas.Get price

Welcome to Environmental GIS | Environmental Geographical

Apr 15, 2021 · Thank you for visiting the Environmental Geographical Information Systems (E-GIS) webpage.. This site provides access to baseline environmental geospatial data, map services, printable maps and relevant documents to users of geospatial technology, government as well as the public.Get price

GIS for digital substations - Hitachi ABB Power Grids

Hitachi ABB Power Grids' GIS can be equipped with control, protection and communication feature for smooth integration into substation automation systems using IEC 61850. For connection to the IEC 61850-9-2 process bus, non-conventional instrument transformers (NCITs) for GIS with merging units are used for sampled values for protection andGet price

GIS for Africa - Esri

information.” Coordinating with the AFRICA GIS Conference, the WSSD focuses on the importance of building data partnerships and technology standards for sharing geographic information among many agencies across the continent. Its hope is to make GIS accessible at all levels of enterprise so information is readilyGet price

Sebenza – biggest substation in SA in 10 years – CONCO Group

Nearing its final months of completion, the Sebenza 400/275/88kV substation constructed and project managed by Consolidated Power Projects (CONCO) for City Power, will be the biggest substation to be built in South Africa in the past ten years.Get price

Energy Cabinet Secretary commissions GIS substation - ESI Africa

May 29, 2018 · Kenya’s Energy Cabinet Secretary Hon. Charles Keter commissioned the 220/66kV Gas Insulated Switchgear (GIS) substation located at the city centre on Monday. The substation is part of the Nairobi City Centre Network Upgrade and Reinforcement Project that is aimed at improving the flexibility of the power distribution system in Nairobi. Kenya Power noted in a statement that the project is being implemented by TBEA of China at a cost of KShs.13.2 billion ($128 million), funded by the EximGet price

GIS Mapping Software, Location Intelligence Spatial

Esri’s GIS mapping software is the most powerful mapping spatial analytics technology available. Learn how businesses are using location intelligence to gain a competitive advantage.Get price

GIS | High-Voltage Gas Insulated Switchgear Substations

A gas insulated substation (GIS) is a high voltage substation in which the major structures are contained in a sealed environment with sulfur hexafluoride gas as the insulating medium. GIS technology originated in Japan, where there was a substantial need to develop technology to make substations as compact as possible. The clearance required for phase to phase and phase to ground for all equipment is much lower than that required in an air insulated substation; the total space required forGet price

Transformer Technology

Apr 20, 2021 · Furthermore, due to an array of technical features, which guarantee effective vacuum-tight treatment without the risk of microbubbles or contamination, MICAFLUID systems ensure process integrity without any compromises to the asset whether in a production line or substation. 21 advantages of using MICAFLUID technology in 2021. 1.Get price

Hybrid substations - Hitachi ABB Power Grids

Hitachi ABB Power Grids' innovative hybrid substations combine gas- and air-insulated switchgear technologies to make the installation more compact, minimize maintenance requirements and maximize availability and reliability.Get price

High-voltage systems for substations | Portfolio | Siemens

Gas-insulated single-pole bus ducts with a total length of 2,700 meters connect the GIS accommodated in the 85-meter-long switchgear building with the air-insulated part of the substation. The 245-kV breakers were the world’s first of its kind to switch a short-circuit current of 80 kA.Get price

Medium Voltage blue GIS | Systems | Siemens Global

Gas-insulated medium-voltage switchgear NXPLUS C 24 - blue GIS Gas-insulated medium-voltage switchgear NXPLUS C 24 - blue GIS. The new gas-insulated circuit-breaker switchgear NXPLUS C 24 with Clean Air is a single-busbar switchgear for the primary distribution level of up to 24 kV, 25 kA and 1250 A.Get price

Preventive maintenance of substation equipment and

Sep 30, 2019 · Gas insulated substation. The main advantage of Gas Insulated Substation (GIS) is its high reliability and also compactness which has direct influence on land requirement, land cost, environmental considerations, etc. The initial equipment cost of GIS is usually higher than that of conventional Air Insulated Substation (AIS).Get price

Offering system integration for grid solutions

Gas Key facts Power Transformers • 86 Power Transformers delivered in total, therein step-up transformers and auto transformers with ratings from 165 to 485 MVA • Utilizing factory network to meet tight delivery schedule -insulated switchgear • Six 500 kV gas-insulated substations and six 220 kV gas-insulatedGet price

Substations Electrification - Hitachi ABB Power Grids

The competitive energy market requires innovative and reliable solutions for effective integration of power from conventional and renewable generation plants, and efficient transmission and distribution to residential, commercial and industrial consumers.Get price

Gas Insulated Switchgear Market Size, Share Global Report, 2026

Market TrendsMarket DriversMarket RestraintSegmentationRegional AnalysisKey Industry PlayersKey Industry DevelopmentsReport CoverageRequest a Free sampleto learn more about this report. Increasing Energy Demand Fuel Market Growth The growing population and growing rate of urbanization are likely to increase the demand for energy across the globe. According to the United Nations report in 2018, about 55% of the world’s population lives in urban areas, which is projected to increase to 68% by 2050. The extensive population shifting to cities is increasing the demand for electricity. Moreover, enormous construction activities to build commercial spaces, business parks, and housing societies are set to spike power demand. Hence, the space constraint in urban localities and growing energy demand is projected to further propel the gas insulated switchgear market growth during the forecast period.Get price

High-voltage substations | High-voltage – Power transmission

Gas-insulated single-pole bus ducts with a total length of 2,700 meters connect the GIS accommodated in the 85-meter-long switchgear building with the air-insulated part of the substation. The 245-kV breakers were the world’s first of its kind to switch a short-circuit current of 80 kA.Get price

Gis substation Manufacturers Suppliers, China gis

gis substation manufacturer/supplier, China gis substation manufacturer factory list, find qualified Chinese gis substation manufacturers, suppliers, factories, exporters wholesalers quickly on Made-in-China.com.Get price

ABB commissions world’s first switchgear installation with

Aug 24, 2015 · However, it is a greenhouse gas and its lifecycle management requires careful handling and can entail substantial costs, particularly when decommissioning aging substations. ABB pioneered high-voltage GIS in the mid-1960s and continues to drive its technology and innovation, offering a full range product portfolio with voltage levels from 6.6Get price

EETC – Zahraa Nasr City GIS Substation – Egypt

EETC – Zahraa Nasr City GIS Substation – Egypt provides details on the background, scope and status of this project including project location, value, stage and key companies and personnel involved.Get price