Find out information about air insulated substation. Therefore, the bus layout and switching arrangement selected will determine the. As the electricity demand is increasing day by day, the power companies are giving their active. A number of options exist for reducing the footprint of substations using air insulated switchgear ais. The design objective for the substation is to provide as high a level of reliability and flexibility as possible while satisfying system requirements and minimizing total investment costs. Index by keyword page ais air insulated switchgears 66, 70, 72 and 73 apps advanced power protection system 44, 45, 46 and 47 arcgis geographic information system 106 atex 32 and 33 automation for substations 53, 101 brio w310 124 c264 micom compact rtu 101 circuitbreakers 63 competence management 18 cyber security 50 design of installation 43 elearning 20, 27, 28 and 39. Gas insulated substations high system reliability highflexibilityofitssolutionsmodularityexpandability. Economics between conventional and gas insulated substation. Airinsulated switchgear gives you the advantages of.
More space is required for outdoor substation when compared to indoor gas insulated substation gis outdoor switch yards are more vulnerable to faults as it is located in outside atmosphere which has some influence from pollution, saline environment and other environmental factors. The footprint of an airinsulated substation is dependent on its layout e. A gas insulated substation due to its modular construction and compact nature is a viable alternative to the conventional air insulated substation. Pdf a number of options exist for reducing the footprint of substations using air insulated switchgear ais. Pdf performance of compact air insulated substations. This paper presents a comparative analysis of gas insulated substation and air insulated substation. Gis equipment installation is demanding and asks for a the. The metalenclosed gas insulated switchgear inherently follows the criteria for new substation design and offers a higher reliability and flexibility than other solutions. It is suitable for both indoor and outdoor applications. Conventional substations using atmospheric air as the main dielectric cannot satisfy these requirements, but totally enclosed substations using sulphur hexafluoride sf6 gas insulation that are also known as gas insulated substations gis. Taking into the consideration of substation layout and its working operation the air insulated substation has advantageous key features.
Air insulated switchgear gives you the advantages of. To prevent injury ensure that motor mechanisms and springpneumatic and hydraulic operators are discharged and deenergized before any work starts. The air insulated substation dissected plh group inc. Due to its enclosed construction, gas insulated substation is operable under. Thanks to the new shopfloor layout, designed according to the just in time, lean manufacturing and theory of. Gas insulated substation gis vs air insulated substation. A brief study of both the substations is carried out. Ieee guide for bus design in air insulated substations. Gas insulated substation market industry analysis, share. Modeling and simulation of air insulated and gas insulated. In this article, we take a look at the air insulated substation ais. Sep 29, 2009 various factors affect the reliability of a substation, one of which is the arrangement of the switching devices.
The hybrid module typically utilizes gas insulated switchgear components and conventional air insulated bushings for connecting to the busbar. This course provides practical information that has been collected from a number of different gis projects. Siemens provides a wide range of services including the supply of complete packages of highvoltage. The procedure is described in the siprotec system manual. A typical primary distribution substation would include airinsulated outdoortype highvoltage side hv and a metalenclosed airinsulated indoortype mediumvoltage switchgear mv.
A proper design of the substation bus ensures a safe and reliable operation of the substation and the power system. Substations play a crucial role in electricity distribution infrastructures as a part of the transmission and distribution systems, performing several core functions such as the transformation of voltage from high to low, or vice versa. If the red x still appears, you may have to delete. It requires minimum floor space and building volume. Ieee guide for recommended electrical clearances and insulation levels in air. Abb to strengthen indonesias power infrastructure and. A gas insulated substationgis is a substation that uses a superior dielectric gas, sulfur hexafluoride sf6,high voltage. Technical specification construction of 3311 kv primary sub. Gasinsulated mediumvoltage switchgear from siemens is very safe. What factors determine the cost and architectural layout.
This project greatly enhanced system reliability reconfiguring the station from a115kv air insulated straight bus to a 115kv gis ring. The substations are mainly used to convert ac alternating current to dc direct current. Our partners will collect data and use cookies for ad personalization and measurement. 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. Unisec css for compact secondary substation tested according to iec 62271202 ed. Optimising reliability with airinsulated switchgear. If the red x still appears, you may have to delete the image and then insert it. Various factors affect the reliability of a substation, one of which is the arrangement of the switching devices. The differences between air insulated substation engineering and gas insulated substation engineering are vast. Two different types of buses are used in substations, the rigid bus and the strain cable. The term module refers to the fact that the equipment itself is a combination of different standard substation components in a single assembly. The assembly of apparatus used to change some characteristice. There are six types of substation bus switching arrangements commonly used in air insulated substations.
Gas insulated substations euci conference 2020 in anaheim. Due to the gas enclosed design, gis is the most suitable. Division of the american society of civil engineers. Several crucial terms are for better understanding of the presented material. Mar 18, 2014 sub stationsair insulated substations 1. Design of an airinsulated switchgear substation based on new technology.
Hello, this video is for comparing of gas insulated substation gis vs air insulated substation ais for urban and rural areas with discussion. Gas insulated substation installation ced engineering. Layout of a typical 500 kv substation using airinsulated switchgear. In this paper, a detailed model of an air insulated compact substation is developed, and. Airinsulated substation article about airinsulated. A number of options exist for reducing the footprint of substations using airinsulated switchgear ais. One circuitbreaker with blk drive both single and threephase operation. Covering an area the size of 24 football pitches, it is as of january 2019.
Technical specification construction of 3311 kv primary substations. The purpose of the following report is to provide a cost and technical comparison between air insulated switchgear ais and gas insulated switchgear gis substations for the purposes of building a 400kv substation for the laoiskilkenny reinforcement project. Gis devices have numerous mechanisms in small enclosures and can be controlled remotely. Covering an area the size of 24 football pitches, it is as of january 2019, the uks largest substation and europes second biggest. Pdf environmentally friendly compact airinsulated high. For most of the said time interval, the operation of.
Substation reduces construction times to between 3 and 6 months uses only 20% of the space required by traditional airinsulated substation safe to touch and resistant to vandalism modular design facilitates rapid transport sf6 circuit breaker iec and ansi tested 30. Compass compact prefabricated air insulated substation. Zurich, switzerland, june, 1, 2016 substation extensions for pln to provide reliable power for java, the worlds most populated island and. Understand the role of hv airinsulated substation, and gain insight on. Substations rely on copper grounding on equipment and in the ground to properly ground the system and make it safe. It is owned and operated by scottish southern electricity network ssen. A gas insulated substation gis is a substation that uses a superior dielectric gas, sulfur hexafluoride sf6,high voltage. Is that the highvoltage current carrying parts are within a metal enclosure and are held in a concentric configuration by cast epoxy spacer. An electric power substation that has the busbars and equipment terminations generally open to air and utilizes insulation properties of ambient air for.
Gis high voltage substation engineering uses the gas sulfur hexafluoride. Ge provides a full range of gasinsulated substations gis for utilities and industries worldwide. The development focus for ais was on circuit breaker cb technology that would increase reliability and reduce maintenance. Abb to strengthen indonesias power infrastructure and boost electricity supply. The bay solution provided all the functions needed. Gas insulated substation free download as powerpoint presentation. The hybrid module typically utilizes gasinsulated switchgear components and conventional airinsulated bushings for connecting to the busbar. The portfolio includes gis solutions from 60 to 800 kv, along with secondary products to maximize switchgear and network operation. Gas insulated switchgear is used in industrial areas to fulfil highenergy demands by space saving design with a minimum of cost.
It has been conceptualized taking as a platform and it truly compliments the basic version of breakers that are primarily designed for conventional substation solution. Apr 30, 2018 hello, this video is for comparing of gas insulated substation gis vs air insulated substation ais for urban and rural areas with discussion of each individual substation component. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. Detailed investigation of substation and preparation of boq to be done by the bidder. Airinsulated substation elearning ge grid solutions. A substation is an electrical system with highvoltage capacity and can be used to control the apparatus, generators, electrical circuits, etc. Jan 26, 2018 this feature is not available right now. In line with the substation owners philosophy, a main 2 protection. Restart your computer, and then open the file again. The basic insulation level bil required for a gas insulated substation gis is different from that of the conventional substation because of certain unique properties of the former. A brief case study of challenges encountered during the installation of 115kv gas insulated switchgear in downtown denver. Air insulated substations busswitching configurations. Gas insulated substation electrical substation transformer. Ais air insulated substations electrical engineering portal.
Airinsulated substations up to 800 kv digital asset management. As an integral part of the transmission or distribution systems, the substation or. The footprint of an air insulated substation is dependent on its layout e. Find out information about airinsulated substation. Gas insulated substations gis is a compact,multicomponent assembly enclosed in a ground metallic housing in which the primary insulating medium is compressed sulphur hexafluoride sf6 gas. Asce manuals and reports on engineering practice no. This course is based on terms used in ieee and iec regulations. Aiss, which are more common, use air to insulate the different components of the substation from each other as well as for grounding the charge. Pdf a number of options exist for reducing the footprint of substations using airinsulated switchgear ais. Nesco has adopted the philosophy of installing open terminal air insulated substations.
To improve quality of operations we offer air insulated switchgear that are based on standard circuit breakers. High voltage substation air insulated substation mafiadoc. Pdf performance of compact air insulated substations under. Siemens is a leading supplier of engineering, equipment, solutions, and services for highvoltage substations, such as air insulated substations, gas insulated substations, and gas insulated lines. Arrangement of the switching devices will impact maintenance, protection, initial substation development, and cost. Scribd is the worlds largest social reading and publishing site. Two disconnectors with their own motormanual drive. High voltage products compass compact prefabricated air. In case of gis each individual item of switchgear is metal enclosed which is at.
Gas insulated switchgear is used in industrial areas to fulfil highenergy demands by space saving design with a. Index 249 fiber optic cable, 5, 56, 77 fiber systems, 5 file format, 19 flag relay, 1 flashover, 30 frequency, 1 gantry, 45, 52 gas. A typical primary distribution substation would include air insulated outdoortype highvoltage side hv and a metalenclosed air insulated indoortype mediumvoltage switchgear mv. Home technical articles ais air insulated substations. In the choice of a site layout for a substation, the number of outgoing lines or. Air insulated switchgear outdoor porcelain clad vacuum. As a result, substation equipment had to be made more reliable and. Abb medium voltage products airinsulated primary switchgear, iec type airinsulated primary switchgear unigear range and zs8. There are five major considerations in the differences between the two high voltage substations. Substation engineering ais and gis substations beta. Gis there are two terms presented in iec gas insulated switchgear and ieee gas insulated substations. 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. Due to the gas enclosed design, gis is the most suitable solution for indoor and underground substations. Design using design manual, specifications, internal standards.
These air insulated substations ais differ from gas insulated substations gis in that the bus and equipment are more susceptible to the elements temperature, contamination, animals, etc. However, air insulated substations also offer many advantages. Ieee 6052008 ieee guide for bus design in air insulated. The bus bars may be of either rigid type or flexible strain type depending upon the choice of the designer considering the overall suitability and economy of the substation to be installed. Jan 31, 2008 conventional substations using atmospheric air as the main dielectric cannot satisfy these requirements, but totally enclosed substations using sulphur hexafluoride sf6 gas insulation that are also known as gas insulated substations gis. Well look comparatively at each of those five substation differences below. Sm6 air insulated switchgear 70 supply transformer substation 56 and 65 transformers 56, 74 and 92 vavahvxa vacuum circuitbreakers 64 vacuum circuitbreakers 63, 64 and 68 vamp protection 81, 83, 85, 92, 98, 99 and 100 vampset 100 w310 brio 124 wi gas insulated switchgear 58 ws gas insulated switchgear 57 xflow 121 and 122 index. Due to specific reasons, like space limitations, environmental aspects and security, the substation can be built using gas insulated switchgear gis technology. Substation reduces construction times to between 3 and 6 months uses only 20% of the space required by traditional air insulated substation safe to touch and resistant to vandalism modular design facilitates rapid transport sf6 circuit breaker iec and ansi tested 30. Blackhillock substation is an electrical substation located in the north east of scotland, near the town of keith in moray.
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