Nov 01, 2010
R100m new transformer test bay to reduce repair times, costs – EskomBack
Pretoria|Rosherville|Africa|Eskom|Generators|Instrumentation|Rotek Industries|System|Transformer|Africa|Electricity Supply Industry|Even Upgrading Services|Transformer Repair Subsidiary|Transformers|Dan Marokane|Infrastructure|Les Carlo|Power|Transformers|Transformer|Transformers
© 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
Other Electricity News
Recent Research Reports
Real Economy Year Book 2014 (PDF Report)
This edition drills down into the performance and outlook for a variety of sectors, including automotive, construction, electricity, transport, steel, water, coal, gold, iron-ore and platinum.
Real Economy Insight: Automotive 2014 (PDF Report)
This four-page brief covers key developments in the automotive industry over the past 12 months, including an overview of South Africa’s automotive market, trade figures, production and the policies influencing the sector.
Real Economy Insight: Construction 2014 (PDF Report)
This five-page brief covers key developments in the construction industry over the past 12 months. It provides an overview of the sector and includes details of employment in the sector, infrastructure and municipal spending, as well as insight into companies’...
Real Economy Insight: Electricity 2014 (PDF Report)
This five-page brief covers key developments in the electricity industry over the past 12 months, including details of State-owned power utility Eskom’s generation activities, funding and tariffs, independent power producers and prospects for the sector.
Real Economy Insight: Road and Rail 2014 (PDF Report)
This six-page brief covers key developments in the road and rail industries over the past 12 months, including details of South Africa’s road and rail network and prospects for both sectors.
Real Economy Insight: Steel 2014 (PDF Report)
This four-page brief covers key developments in the steel industry over the past 12 months. It provides an overview of the global and South African steel and stainless steel markets, South Africa’s major steel producers and events that have shaped these markets.
This Week's Magazine
Multinational semiconductor chipmaker corporation Intel announced its national campaign to further acquire partners to drive its She Will Connect programme, an initiative that aims to expand digital literacy skills to young women in developing countries, further into...
South Africa's MeerKAT radio telescope array programme should get back on schedule within a few months. This assurance has been given by SKA South Africa (SKA SA) associate director: science and technology Prof Justin Jonas. Early last month, Science and Technology...
The Passenger Rail Agency of South Africa’s (PRASA’s) Metrorail service will remain a subsidised service following its current multibillion-rand rolling stock, station, depot and signalling upgrade programme. PRASA group CEO Lucky Montana has allayed fears that...
The uncertainties around the remediation of affected areas as addressed in the Contaminated Land Provisions in the National Environmental Management: Waste Act No 59 of 2008 will possibly spark litigation and disputes between landowners and businesses, contractors...
South Africa is currently the largest component of the African Development Bank’s (AfDB’s) active portfolio in Southern Africa, comprising 62.5% of the bank’s $7.9-billion exposure to the 12-country region – the second largest beneficiary is Mauritius, which...