Predictive maintenance in substations and switchgear - EE

Apr 11, 2016 · Substations call for a predictive approach to maintenance because a failure can be costly for end users in terms of lost production and revenues and lead to lower revenues for the utility from lost sales due to unreliable service. Since overheating as well as abnormally cool operating temperatures may signal the degradation of an […]Get price

End of life estimation of HV switchgear and GIS substations

Jun 10, 2016 · Substation 1: The rated power frequency withstand voltage was not fulfilled. Various flashovers and disruptive discharges appeared even at voltages distinctly below the onsite test voltage of 184 kV. A voltage breakdown could not have been excluded at the next overvoltage event. Substation 2: The rated power frequency withstand voltage was approved. All parts of the GIS substation passed the test voltage of 230 kV.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

Preventive maintenance of substation equipment and

Sep 30, 2019 · The initial equipment cost of GIS is usually higher than that of conventional Air Insulated Substation (AIS). Preventative maintenance of substation equipment and transmission lines. The advantage and life cycle cost analysis are generally considered before deciding for GIS. The land area required for a GIS substation is in the order of 10% to 20% of that for an AIS substation considering the switchgear bay.Get price

NATIONAL ELECTRICAL TEST FACILITY (NETFA)

National Electrical Test Facility South Africa’s National Electrical Test Facility (NETFA) is the largest, independent test facility for power utilities and the electro-technical industry, within Africa. NETFA is part of the suite of test laboratories at the South African Bureau of Standards (SABS) and has been providing services since the 1980s.Get price

Monitoring and condition assessment for GIS substations and GIL

Mar 19, 2021 · Monitoring and condition assessment for GIS substations and GIL . File Size IEC 61850 based substation automation systems – Users expectations and stakeholdersGet price

GIS Solutions for Power Generation and Transmission Services

as substations, lines, and associated structures. Use GIS to assess grid reliability levels and formulate plans for improving reliability, meet compliance requirements, site and manage transmission corridors, inventory and schedule right-of-way maintenance, and analyze load growth or changes in load shape or strain on substation capacities.Get price

National Electrical Test Facility

South Africa’s National Electrical Test Facility (NETFA) is the largest, independent test facility for power utilities and the electro-technical industry, within Africa. NETFA is part of the suite of testing laboratories at the South African Bureau of Standards (SABS) and has been providing services since the 1980s.Get price

HVTEST South Africa - High Voltage Testing Company

H.V. TEST (PTY) LTD. HV Test is ISO9001 audited and accredited and the largest supplier and market leader in all the aspects of Test equipment Sales, Repairs and- Calibration, High Voltage Training courses, and Commissioning and Maintenance field services in the Medium Voltage, High Voltage and Extra High Voltage Electrical Engineering fields.Get price

Electrical Substation Design, Testing and Commissioning

Recent technological developments have had tremendous impact on all aspects of substation design, operation, maintenance, safety, and grounding, testing and troubleshooting. A substation is a high – voltage electric system facility. It is used to switch generators, equipment, and circuits or lines in and out of a system.Get price

Sibusiso Mlungwane - Maintenance Manager - Clover S.A

Richards Bay Area, South Africa Assigned with the maintenance operation of the following: - Plant substations (400V - 132kV) - switchgears (GIS Vacuum), busbars, mini-subs etc - Transformer...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

SCOPE OF WORK - SUBSTATION

4.2.2 Standard Substation This section defines the standard substation components. 4.2.3 33 kV Switchgear GIS Type 4.2.3.1 33kV incomer Bay 1 (one) complete bay shall be equipped with: a. 1 (one) set of GIS for 33kV incomer bay with circuit breaker, disconnectors,Get 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 (GEPP) to the rest of Sasolburg site’s infrastructure. Four 80Mva 88/15Kva transformers were installed between Gas engine power plant and substation .Get price

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

10. Maintenance requirements for different types of switchgear 11. Improving substation performance and reducing maintenance 12. Manual disconnection devices 13. Maintenance access 14. Basic substation electrical configurations e.g. Double vs. Single busbar 15. Sectionalised single busbar 16. AIS Bus section arrangement facilitating maintenance 17.Get price

Predictive Maintenance Conference South Africa ABB Campus

The unique method uses induced lightning and routine substation maintenance switching as the test source for winding FRA determination. Winding test results are usually obtained in a time period of three months to a maximum of one year. Off-line baseline tests with the on-line equipment can also be performed when the equipment isGet price

Commissioning Testing of Electrical Systems Training | GLOMACS

Objectives. This GL O MACS training seminar covers all aspects of testing in electrical systems, performed during construction or maintenance. It considers the practical understanding of a variety of tests and prescribes how to plan and implement them carefully.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 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

Gas-insulated switchgear from 72.5 to 550 kV

switchgear (GIS). The GIS concept soon turned out highly successful, and immediately set new standards in terms of performance and reliability. Ever since, Siemens GIS have played a central role in supplying power safely, worldwide. Today, Siemens has installed more than 28,000 indoor and outdoor switch bays worldwide, and well over 300,000 bay-Get price

Purpose-built ­substations for the data center industry | ABB

Aug 20, 2020 · The new smart substation is over 30 percent smaller than its predecessor and uses 50 percent less copper on control cables. Fewer cables means fewer field electrician man-hours stripping cables, crimping connections, testing out contact points, etc. In short, the new substation design reduces site construction time and lowers risk.Get price

Cost Estimating Manual for projects

Cost Estimating Manual for Projects . M 3034.03 . April 2015. Engineering and Regional Operations . Development Division, Design Office, SAEOGet price

Substation Equipment that secures the quality of electric

Since the 1970s, Toshiba has accumulated overseas FTK / TK project management experiences of more than 100 GIS substations with voltages up to 800kV *1 all over the world. Based on our rich experiences, we will continue to offer provide substation systems equipment, with high reliability, safety, and quality.Get price

Work in Substations - General - TransGrid

Work within Substation Buildings and Car Parks (Cat 3.1) Work in Switchyards and High Voltage Areas not affecting Substation Apparatus (Cat 3.2) Work in Switchyards or High Voltage Areas affecting Substation Apparatus (Cat 3.3) 2.1 Personal Protective Equipment (PPE) All persons shall observe the additional PPE requirements for work on site.Get price

Electrical Switchgear Risk Assessment Study and Hazard

Detecting the Limits and scope of use of the switchgear assembly; – design and type of switchgear and rated values – ambient conditions – Intended work procedures, besides the regular switching operations, e.g. maintenance, cable testing, work on LV control equipmentGet price

Substation Tenders - Online Latest Info About Substation

construction of hostel block g plus 4, academic research block g plus 2 with food court, utility and common services at thaiyur b village for iit madras discovery campus. sh: building portion including internal, water supply, sanitary installations, drainage, roads, wtp and allied development works. internal electrical installations and external service connection including streetlight, fireGet price

Substations and electrical installations | ELECTRA

IntroductionStrategy and DirectionMembership and ExpertsWorking AreasWorking GroupsPublicationsTutorialsPreferential SubjectsEventsConclusionsSubstations play a key role as nodes within electrical networks, providing the capability for the network to deliver safe, reliable energy with high availability. To support the realisation of a sustainable society, substations’ research & development continues to make advances in new technologies and applications that offer substation owners and operators the flexibility, security and stability they need to continue to expand their systems in an efficient and environmentally friendly manner. However, transmission substations remain essential for bulk power transmission such as interconnecting load regions, large generation resources and energy storage, and offshore supplies. The focus area for SC B3 is the coordinated design and operation between transmission and distribution, to facilitate more flexible and active distribution networks. Facilitating this connectivity to support the integration of decentralised renewable energy resources, energy storage, and more active customer pa...Get price

Google

Search the worldinformation, including webpages, images, videos and more. Google has many special features to help you find exactly what you're looking for.Get price

Diagnostics - Hitachi ABB Power Grids

Efficient maintenance requires proper planning, for which the qualitative determination of equipment condition is a key factor. The more critical the equipment and location is in terms of safety, network integrity and operation, the more crucial it is to confirm the condition correctly.Get price