ABB powers Africa’s largest gas-insulated switchgear installation

Feb 07, 2019 · The Sebenza substation features 38 bays of 132 kilovolt (kV) gas-insulated switchgear (GIS) from ABB, making it the largest installation of GIS at this voltage level to be commissioned in Africa. ABB also supplied 132 kV, 275 kV and 400 kV circuit breakers, surge arresters and point-on-wave controllers that remove electrical transients in the network.Get price

Product brochure Gas-insulated Switchgear ELK-14 The modular

South Africa 1 substation 1 bay Mexico 6 substations 64 bays USA 6 substations 32 bays Liban Each circuit-breaker in the ELK-14 GIS comprises three sing-Get price

Substation Equipment – High Voltage Technology

The major project management companies in the region being ABB, Siemens, Alstom, Sasol, Consolidated Power, Trans Africa Projects, and many other independent industrial, mining and manufacturing end user companies. Regional Utilities, Eskom, NamPower, Botswana Power, EDM, Zesa, KPLC, Zesco, South African regional distributors.Get price

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

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 spacesGet price

Power Line and Substation Design - Trans-Africa Projects

The design focus on the unique or specific requirements for each substation and may include GIS and AIS technology. Trans-Africa Projects’ substation design team designs for both brown– and greenfield type projects for various system voltages (low, medium, high and extra high) whether it is for conceptual (EPCM), preliminary and/or detailedGet price

GIS in South Africa - repository.up.ac.za

Keywords:South Africa, Geographical Information Systems (GIS), schools, paper GIS, education Introduction Geographical information systems (GIS) is an exciting and fast-growing tool that holds a lot of potential for South Africa. GIS can be defined as a system for capturing,Get price

Gas-Insulated Substations - GIS

Nov 10, 2010 · A gas-insulated substation (GIS) uses a superior dielectric gas, Sulfr hexafluoride, 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 Sulfr hexafluoride can do in centimeters.Get price

Product brochure Gas-insulated Switchgear ELK-3 GIS for

In the early stage of transmission GIS, ABB introduced one of the world’s first 500 kV transmission GIS ELK-3 in 1976. The low centre of gravity using a horizontal double-breaker puffer circuit-breaker, optimal characteristics in seismic areas could be achieved. Meanwhile the circuit-breaker is implemented inGet price

Gas insulated substation (GIS) versus Air insulated

Oct 28, 2020 · Double busbar with double circuit breaker, One and a half circuit breaker scheme and; Ring busbar. More about switching configurations you can read here. Figure 2 shows the layout of a GIS substation based on single line diagram in Figure 1.Get price

GIS Substation Design and Execution HV and EHV GIS

2014/04 - Houston - CED – GIS - 3 GIS introduction 1/7 gaz sf6 properties 1/3 zA GIS is the implementation, within a complete HV substation, of the remarkable sulphur hexafluoride (Sulfr hexafluoride) properties in terms of voltage withstand and current interruption zsf 6 main data zNeutral gas: insulators and live parts are perfectly protectedGet price

Largest substation in a decade: Within budget and ahead of

Jan 18, 2018 · ABB South Africa says this is the largest 132 kV high voltage gas insulated switchgear (GIS) board it has ever delivered in Africa. The gear consists of 132 kV GIS, 400 kV and 275 kV circuit breakers and surge arresters; 132 kV circuit breakers; 88 kV surge arresters and point-of-wave relays (switch sync). The 132 kV GIS board comprises 38 bays (Figs. 5a and 5b).Get price

GIS substations - Hitachi ABB Power Grids

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. Our in-depth knowledge of the power value chain, as well as grid codes and utility practices in use around the world, enable us to provide turnkeyGet price

High-voltage substations | High-voltage – Power transmission

Siemens has proven to be a reliable, trustworthy supplier of high-voltage substations for all voltage levels and for all applications – from basic substations with a single busbar to interconnection substations with multiple busbars or a breaker-and-a-half arrangement for up to 800 kV, 8,000 A, and short-circuit currents of up to 100 kA.Get price

Containerised Substations and Inverter Enclosures - RWW

The containerised substations are compact and consist of power factor correction equipment, ring main units, switchboards and dry type transformers encased in robust enclosures. Renewable energy plants require many outdoor inverter enclosures housing the DC incomer, AC Inverter, power transformer and protection.Get price

GIS Substation Tenders Global GIS Substation tenders GIS

Feb 18, 2021 · Summary: Supply Of 2 (two) Single-phase Autotransformers 525 ÷ 3 Kv / 345 ÷ 3 Kv (210/80 / 350 Mva) - 13.8 Kv (9/12/15 Mva), 60 Hz For Fern Substation, Including Of Routine And Type Test Services, InstallationGet price

Jaco Olivier - City of Johannesburg, Gauteng, South Africa

Built new substation to house 88Kv GIS switchgear and associated equipment. GIS purpose is to distribute utility power from National power generating company (ESKOM) and new gas engine power plant...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

COMPANY PROFILE

Sub-Saharan Africa. APTi supplies power, furnace, distribution and dry-type transformers, miniature substations, all types of switchgear, cables and other HV, MV and LV products from various manufacturers both locally and internationally. With an increasing footprint in South Africa and Sub-Saharan Africa,Get price

SUBSTATION DESIGN AND EQUIPMENT SELECTION SAIEE-1865-V, 3 CPD

Eskom in South Africa. He has gained considerable experience in Substation Design as a Project Engineer, and subsequently design standards and equipment specifications as a Substation Technology Specialist concentrating on medium and high voltage switchgear up to 132kV. For several years he was acting as Eskom national specialist forGet price

Largest substation in a decade: Within budget and ahead of

Jan 18, 2018 · ABB South Africa says this is the largest 132 kV high voltage gas insulated switchgear (GIS) board it has ever delivered in Africa. The gear consists of 132 kV GIS, 400 kV and 275 kV circuit breakers and surge arresters; 132 kV circuit breakers; 88 kV surge arresters and point-of-wave relays (switch sync). The 132 kV GIS board comprises 38 baysGet price

SECTION B: ACTIVITY INFORMATION - Environment

STRATEGIC ENVIRONMENTAL ASSESSMENT FOR ELECTRICITY GRID INFRASTRUCTURE IN SOUTH AFRICA 5B GENERIC ENVIRONMENTAL MANAGEMENT PROGRAMME (EMPr) FOR SUBSTATION CONSTRUCTION . PART A: BACKGROUND AND CONTEXT . 5B.1 requirements. Introduction 5B.1.1 Need The The National Environmental Management Act 107 of 1998 (NEMA)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

AC High Voltage Circuit Breakers

•Hybrid switchgear allows to reduce the size of substations and to combine the advantages of AIS and GIS. •Specific IEC standard: IEC 62271-205. •Circuit breaker is of GIS or Dead tank type •Depending on the capacitance of the liaison to overhead lines, it is considered as a GIS or AIS circuit breaker.Get price

STANDARD SPECIFICATIONS FOR MUNICIPAL ELECTRICAL ENGINEERING

1.6 Substation Testing Re-commissioning 1.7 Implementation Plan 1.8 Day works 1.9 Health Safety 1.10 Environmental Management plan 2 132kV Circuit Breakers: 2.1A 132kV Outdoor Circuit Breakers 2.1B 132kV Disconnecting Circuit Breakers 2.2 132kV GIS Switchgear 3 Disconnectors (Isolators) and Earthing Switches:Get price

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

Case Study: IEC 61850 Application for a Transmission

Transmission Substation in Ghana Charles E. Anderson Meade Electric Company, Inc. Salim Zniber, Youssef Botza, David Dolezilek, and Justin McDevitt Schweitzer Engineering Laboratories, Inc. Presented at the PAC World Africa Conference Cape Town, South Africa July 30–August 2, 2013 Previously presented at theGet price

GE Grid Solutions

GEGIS design provides customers with a substation that is more efficient and more reliable, and easier to maintain and integrate. When reconfiguring existing electrical infrastructure or building a new substation, installing GIS provides flexibility due to its modular design and smaller installation footprint than traditional AIS design.Get price

GE wins $47m substation contract in W Africa

Oct 11, 2020 · GE wins $47m substation contract in W Africa PORTO NOVA, Benin, October 11, 2020 GE Renewable Energy’s Grid Solutions business has been awarded a contract of $47 million for a substation projectGet price

ABB commissions world’s first switchgear installation with

Aug 24, 2015 · 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 6.6 to 1,200 kV. As a market leader in high-voltage and medium-voltage GIS technology, ABB has a global base of more than 300,000 GIS installations.Get price