Nov 01, 2010
R100m new transformer test bay to reduce repair times, costs – EskomBack
Pretoria|Rosherville|Eskom|Rotek Industries|Africa|Electricity Supply Industry|Even Upgrading Services|Transformer Repair Subsidiary|Dan Marokane|Les Carlo
© Reuse this
The workshop is the only one in Africa capable of refurbishing, repairing and testing, under one roof, the largest transformers operational within the Southern African electricity supply industry.
It can test transformers from 10 MVA to 910 MVA and to Eskom's highest power system normal voltage levels of 765 kV.
Eskom chief commercial officer and Rotek Industries chairperson Dan Marokane says that the investment is supportive of the utility's larger multibillion-rand investment programme, as it sets in place the supporting infrastructure required to ensure the proper maintenance of the utility's long-life assets.
However, he adds that, while Eskom will remain the facility's main customer, it will also be opened up to regional utilities, as well as private businesses requiring transformer maintenance and even upgrading services.
Eskom currently has a fleet of 120 major transformers at its various power stations, more than 500 associated with its transmission business and thousands of smaller distribution transformers.
Rotek Industries CEO Les Carlo reports that, prior to the investment, repaired transformers were moved to a facility in Pretoria, where testing could take weeks to complete at a cost of between R1,5-million and R3,5-million a unit.
The transformers had also, hitherto, been subjected to the rigours and risks associated with transportation and loading, which has been "eliminated" with the development of an in-house facility.
The test bay incorporates the latest testing technologies, including a 10-MVA regulator set, a 60-MVA transformer, static converters for power frequency and high frequency tests; 191-MVAr capacitor banks, a 800-kV Hi-pot for separate source testing, a 1,6-MVA transformer for auxiliary support; and a Scada communication and control system.
Impulse generators, which simulate the influence of lightning storms on transformers, have also been installed, while the digital measuring instrumentation is able to deliver a measuring accuracy of less than 0,05%.
In commissioning, the facility completed a heat run and a type test on a 700-–MVA transformer for one of Eskom's power stations.
Edited by: Creamer Media Reporter© Reuse this Comment Guidelines
Recent Research Reports
Automotive 2014: A review of South Africa's automotive sector (PDF Report)
The report provides insight into the business environment, the key participants in the sector, local construction demand, geographic diversification, competition within the sector, corporate activity, skills, safety, environmental considerations and the challenges...
Construction 2014: A review of South Africa's construction sector (PDF Report)
Construction data released during 2013 hints at a halt to the decline in the industry during the last few years, with some commentators averring that the industry could be poised for recovery. However, others have urged caution, noting that the prospects for a...
Electricity 2014: A Review of South Africa's Electricity Sector (PDF Report)
This report provides an overview of the state of electricity generation and transmission in South Africa and examines electricity planning, investment in generation capacity, electricity tariffs, the role of independent power producers and demand-focused initiatives,...
Defence 2013: A review of South Africa's defence industry (PDF Report)
Creamer Media’s 2013 Defence Report examines South Africa’s defence industry, with particular focus on the key players in the sector, the innovations that have come out of the defence sector, local and export demand, South Africa’s controversial...
Road and Rail 2013: A review of South Africa's road and rail infrastructure (PDF Report)
Creamer Media’s Road and Rail 2013 Report examines South Africa’s road and rail transport system, with particular focus on the size and state of the country’s road and rail network, the funding and maintenance of these respective networks, and the push to move...
Liquid Fuels 2013 (PDF Report)
Creamer Media’s 2013 Liquid Fuels report examines South Africa’s liquid fuels market, focusing on the business environment, oil and gas exploration, the country’s feedstock supplies, the development of South Africa’s biofuels industry, fuel pricing,...
This Week's Magazine
A structured approach, wherein managers personally engage at each level of the project, is necessary to mitigate delays to the workflow on mega construction projects, says State-owned Eskom Kusile power station projects GM Abram Masango. The 4 800 MW Kusile power...
Construction of transmission lines to evacuate power from a regional hydroelectric project in East Africa, which was hanging on the balance following the withdrawal of financing by key partners, is now back on track. After six months of uncertainty, the African...
Three Memorandums of Understanding (MoUs) were signed between South African and Malaysian companies at the Malaysian High Commission in Pretoria on Friday. These MoUs are part of the indirect offsets programme South Africa is providing in return for Malaysia’s...
The South African new vehicle market may well dip to 640 000 units in 2014, says Toyota South Africa Motors (TSAM) sales and marketing senior VP Calvyn Hamman. This is the first prediction that anticipates a drop in the market. To date economists and industry bodies...
Nissan will re-enter the South African minibus taxi industry in March, when the new NV350 Impendulo goes on sale. The 16-seater has been specifically tailored to meet the terms of government’s Taxi Recapitalisation Programme, which aims to replace South Africa’s...