220 kv gas insulated sub stations pdf

This project is located in tehsil lalian, district chiniot, punjab, pakistan. Central electricity regulatory commission new delhi petition. Hybrid gas insulated switchgear for networks up to 550 kv in generation, transmission and industrial applications. Insulated gas insulated substation project having at least 3 three nos. The substation of 220kv66kv 11kv has fifteen outgoing feeders, namely. The sf6 gas insulated metal enclosed switchgear shall be totally safe against inadvertent touch of any of its live constituent parts. While the substation at faridabad is upgradation from the existing 66 kv to a 220 kv substation, the 66 kv substation at panchkula is a new substation. Sf6 gas superior dielectric properties used at moderate pressure for phase to phase and phase to ground insulation preferred for voltage ratings of 72. All associated works with the design, construction and commissioning will form part of this turnkey epc project.

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. Gas insulated substations gis form important network. This article is an introduction to gasinsulated substations. The subtransmission is at medium high voltage such as 33 kv, 11 kv ac. Gas insulated substation mainly used for a power transmission system or a sub station system, of which outgoing bus bar is shortened to reduce consumption of the outgoing bus bar sulfur hexafluoride. Gasinsulated substation gis installations shall generally be preferred to. The gis ss will have the nominal voltage of 220 kv. The work covered under this package is for construction of substation on turnkey. Ge provides a full range of gas insulated substations gis for utilities and industries worldwide. A substation is a part of an electrical generation, transmission, and distribution system.

Insulated gas insulated sub station project having at least 3 three nos. Between the generating station and consumer, electric power may flow through several substations at different voltage levels. Evaluation the high voltage gas insulated substations gis based on flashovers in the 220 kv switchgears. Ge provides a full range of gasinsulated substations gis for utilities and industries worldwide. The connection to the surrounding 110 kv network is provided by three cables run from the nearest hv substation to the main substation of the urban hv network. New 2x315 mva, 400220 kv substation at saharanpur new 2x315 mva, 400220 kv substation at jind new 2x315 mva, 400220 kv substation at jaipur south extension of bhiwadi 400220 kv substation 1x315 mva 400220 kv transformer extension of gurgaon 400220 kv gas insulated substation. The report is prepared for the project in compliance with the environment andsocial policy and procedures espp of the hvpnl.

New 2x315 mva, 400 220 kv sub station at saharanpur new 2x315 mva, 400 220 kv sub station at jind new 2x315 mva, 400 220 kv sub station at jaipur south extension of bhiwadi 400 220 kv sub station 1x315 mva 400 220 kv transformer extension of gurgaon 400 220 kv gas insulated sub station. Pgcil, new delhi 400220 kv gis substation with central. Gas insulated substation gis vs air insulated substation ais for urban and rural areas duration. Gas insulated switchgear is used in industrial areas to fulfil highenergy demands by space saving design with a. With gis experience spanning 50 years across a wide range of industries and applications, ge is a leader in the. Pdf analysis and calculation of very fast transient over voltages. The transient over voltages are generated in gas insulated substations gis during. What is the minimum area required to build a 220kv gas. Report on industrial summer training on 220 kv substation. The author strongly recommends that at 500 kv only gis should be used while at 220 kv and 2 kv their selection should be based on economic viability of the substation compared with the conventional outdoor grid station. This main substation is configured as a double busbar system, allowing maintenance to. This larp has been prepared for the sub project of 220 kv lalian grid station and associated transmission line of 6 km, financed by adb under tranche4 of mff i, pteip i. Resettlement and rehabilitation plan has been prepared for g2 package consisting of two 220 kv substations in firozepur zirka in mewat district and samain in fatehabad district of haryana.

This larp has been prepared for the subproject of 220 kv grid station new chakdara and associated transmission line of 85 km shahi bagh mardan. The author strongly recommends that at 500 kv only gis should be used while at 220 kv and 2 kv their selection should be based on economic viability of the sub station compared with the conventional outdoor grid station. Ges gas iinsulated lines gil meet the challenges of electrical networks up to 800 kv for multiple applications. This paper analyze and calculates the transient over voltages in 220kv gis system. Contractors for the design, construction and commissioning of high voltage gas insulated switchgear gis substations ss. India 400220kv gis susbstation with automation english pdf reference case. Gasinsulated switchgear elk14 the modular system for gis, 245 kv.

In this project, the four new stateoftheart 22066 kv gas insulated substations built at drass, kargil, khaltsi and leh will help to ensure 24. Mobile gas insulated switchgear for temporary and emergency applications. This paper presents the environmental comparison of air insulated and gas insulated switchgears for a specific 220 kv project. Turnkey 400 kv 220 kv greenfield substation with 5 bays at 400 kv and 7 bays at 220 kv with 2 nos. Some substations have their switchyard of gas insulated switchgear gis the substations nominal voltage is 220 kv. A 2202 kv gis substation at jangalpur, district howrah along with. The bus bars shall be sub divided into compartments including the associated bus bar disconnector. The most important of any substation is the grounding earthing system of the instruments, transformers etc. 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. Gis technology originated in japan, where there was a substantial need to develop technology to make substations as compact as possible. Ges gasiinsulated lines gil meet the challenges of electrical networks up to 800 kv for multiple applications. The 220 kv gis switchgear shall be of double bus bar design having.

The bus bars shall be subdivided into compartments including the associated bus bar disconnector. A mini project report on operation and maintenance of 220 2kv substation submitted in partial fulfillment for the award of the degree of bachelor of technology in electrical and electronics engineering submitted by v. For 220 kv class enclosure shall be single or phase wise separate metallic type. Updated larp of 220 kv lalian grid station and associated transmission lines ix executive summary 1. Abb substations with gasinsulated switchgear gis are unmatched when it. Affected family all members of a household residing under one roof and operating as a single economic unit, who are adversely affected by the project, or any of its components. Its a colorless, odorless, nontoxic, liquified gas. The works will consist on integrating new high voltage transformers inside existing substations. Mega plus 2kv substation gas insulated transformer youtube. View latest transmission line tenders in india tender detail. Pdf maintenance and operation of an electrical substation. Resettlement and rehabilitation plan has been prepared for g2 package consisting of two 220 kv sub stations in firozepur zirka in mewat district and samain in fatehabad district of haryana. The portfolio includes gis solutions from 60 to 800 kv, along with secondary products to maximize switchgear and network operation.

Iv general technical specification for 220kv sf6 gas insulated metal enclosed switchgear on photo. Presentation on industrial training in 220kv substation ig nagar, jaipur on the topic operation and maintenance of ehv equipment and trannsmission system. Hybrid gasinsulated switchgear for networks up to 550 kv in generation, transmission and industrial applications. Gas insulated substations gis one 220 kv substation in the district of faridabad and another 66 kv substation in panchkula district of haryana. Pdf evaluation the high voltage gas insulated substations gis. The proposed tl passes through 50 villages belonging to 4 tehsilsfall in the jurisdiction of 3. Introduction to gas insulated substations switchgears gis. Siemens transmission products presentation digital asset.

Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Pdf estimation of transient over voltages in gas insulated. Results confirm that the gis substation has a lower environmental impact than the ais one on the majority of environmental indicators. The differences between air insulated substation engineering and gas insulated substation engineering are vast. Contractors for the design, construction and commissioning of high voltage air insulated switchgear ais substations ss. A 50 hz electrical substation in melbourne, australia. Mar 21, 2018 gas insulated substation gis vs air insulated substation ais for urban and rural areas duration. Updated larp of 220 kv lalian grid station and associated transmission lines viii definition of terms acre of land acre is a unit of measurement for land and 2. Hybrid substation combination of ais and gis are available upto 220kv. Environmental impact comparison between a 220 kv gas.

In this evaluation three flashovers in 220 kv switchgear, the cause for. Gas insulated substation gis also called sf6 gas insulated metalclad switchgear is preferred for 12kv, 36kv, 72. Substations structures including equipment structures, gis equipments and associated. Ais, gas insulated substations gis or hybrid substations. It should be designed for indoor application with meteorological conditions at site winter 3c to 14 c and summer 31 c to 46 c, seismic zone. Gas insulated substation gis also called sf6 gas insulated metalclad switchgear is preferred for. The study evaluates the impact of the two technologies on 18 environmental indicators. Iec 62271203 highvoltage switchgear and controlgear part 203. Gis highvoltage gas insulated switchgear substations. A report on trip to undi 220233kv grid substation bhimavaram 08.

Sulphur hexaflouride sf6 gas the primary insulating medium. This is showing three of the five 220 kv 66 kv transformers, as well as highvoltage transformer fire barriers, each with a capacity of 150 mva. The report is prepared for the project in compliance with the environment andsocial policy and procedures espp of. Mega plus 2kv substation gas insulated transformer. Comparison of gis and ais systems for urban supply networks. With your download, get the 23 best papers relevant to this one, including 17 top related papers.

A mini project report on operation and maintenance of 2202kv substation submitted in partial fulfillment for the award of the degree of bachelor of technology in electrical and electronics engineering submitted by v. This article is an introduction to gas insulated substations. Pteip tranche4larp of 220 kv chakdara subproject ix executive summary 1. There are five major considerations in the differences between the two high voltage substations. This substation is constructed using steel lattice structures to support strain bus wires and apparatus. Airinsulated substations up to 800 kv digital asset management. Gasinsulated metalenclosed switchgear for rated voltages above 52 kv 092011 orequired leakage rate pdf. A hybrid substation would require less space than conventional ais but more than gis. The connection to the surrounding 110kv network is provided by three cables run from the nearest hv substation to the main substation of the urban hv network. Mobile gasinsulated switchgear for temporary and emergency applications. A hybrid sub station can be considered as technoeconomic solution for locations where space is a constraint and also for sub stationrenovation or augmentation.