Design and Supply of Transformer Cores and Shunts.
Eskom
In plain English
Design and supply transformer cores and shunts for a period of 5 years. No specific eligibility criteria such as CSD, B-BBEE, CIDB, or PSIRA are stated.
Always check the official documentDescription
Eskom Holdings SOC Limited is inviting tenders for the design and supply of transformer cores and shunts. This contract will span a period of 5 years. The work involves the design, manufacture, and delivery of power transformer cores for units with ratings between 2 MVA and 80 MVA. Suppliers must be capable of reverse engineering, taking precise dimensions, and providing fully assembled cores with clamping hardware. The project requires adherence to strict quality management standards, including ISO 9001, and specific health, safety, and environmental (SHE) regulations. The tender process includes a non-compulsory clarification meeting and a functionality threshold of 70% for technical evaluation. Successful bidders will be selected for a panel of contractors. The contract is governed by NEC3 Supply Contract conditions, with delivery expected at Eskom Rotek Industries in Rosherville, Johannesburg.
What you need to qualify
- CSD registration — Registration on the Central Supplier Database — required to do business with government.
- Tax clearance — A valid SARS tax compliance status (PIN) showing your tax affairs are in order.
- Letter of Good Standing — COID registration and a Letter of Good Standing from the Compensation Fund.
Full requirements
- Valid CSD registration
- Valid SARS tax compliance status
- Valid COIDA Letter of Good Standing
- ISO 9001 Quality Management System certification
- ISO 45001 or equivalent OHS certification
- Three years of audited financial statements
- Relevant industry certifications for special processes like welding and NDT
Contact & how to apply
Name: Phuti Maremane
Email: maremapa@eskom.co.za
Phone: 011-629-4559
How to apply: Tenders must be submitted electronically via the Eskom E-tendering portal at https://tenderbulletin.eskom.za/. Documents must be uploaded into the designated folders (Technical, Commercial, Financial, and Other) in PDF format. Price lists must be provided in both PDF and Excel formats.
Related tenders
Supply and delivery of capacitive graded bushings.
Eskom Holdings SOC Ltd invites tenders for the supply and delivery of oil-to-air capacitive bushings for power transformers and shunt reactors. This four-year contract is on an as-and-when-required basis, with no guaranteed quantities. It involves procurement, handling, transportation, and delivery to T&SS premises in Rosherville, Gauteng. Deliverables include factory acceptance test results, dimensional drawings, installation manuals, and technical support. The project supports transformer repair and rewind operations, with components expected to last 35 to 40 years. Bidders must demonstrate technical maturity, provide local technical support, and adhere to Eskom's quality and safety standards. The tender complies with the Public Procurement Act No 28 of 2024, focusing on socio-economic development, local industrialization, and skills development funding.
Supply and Delivery of Tapchangers to Eskom Rotek Industries.
This tender involves the supply and delivery of tap changer spares, including ATL, BRUSH, Ferranti, and Fuller components, to Eskom Rotek Industries for four years on an 'as and when required' basis. It includes procurement and delivery of mechanical and electrical parts to the ERI T&SS Receipt and Dispatch facility in Rosherville, Johannesburg. Bidders must provide technical support for installation and meet a minimum technical threshold of 80% for evaluation. The project supports transformer maintenance and repair, promoting local industrial development and socio-economic transformation. Adherence to quality management standards and comprehensive documentation, including test results and maintenance manuals, is required.
Supply and Delivery of Electrical Components for Eskom.
Eskom Holdings SOC Limited seeks a supplier for the delivery and offloading of electrical training consumables and equipment to the Eskom Academy of Learning in Midrand. The tender involves a once-off delivery of 72 line items, including switches, circuit breakers, cables, and testing tools, to be completed within 30 calendar days. The contract follows the NEC3 Supply Short Contract framework, requiring bidders to demonstrate a proven track record in supplying electrical goods. A technical evaluation threshold of 70% applies, and incomplete quotes will lead to disqualification.
RFI for Transformer Winding Design Technology
Eskom seeks information on technology for determining transformer winding design specifications as per OEM. Suppliers should provide details on available technology, including product information, technical data, usage, lifecycle, methodology, operational and maintenance requirements, calibration, spares, training, case studies, applicable standards, and costs. Submission deadline is 22 June 2026.
Supply and delivery of 1MVA 22/11kv Transformer.
Makhado Municipality invites bids for the supply and delivery of a 1MVA 22/11kv Transformer. The project is part of three tenders, including a land lease and transformer maintenance, all within the Makhado Local Municipality. The closing date for this tender is 06 July 2026, and bids must remain valid for 90 days after submission.
Supply of Sealing Strip Raw Materials for Eskom Rotek.
Eskom Rotek Industries requires a service provider to supply sealing strip raw materials for their Turbo Gen Services workshop in Rosherville. The contract is for 36 months on an as-and-when-required basis, including various grades of steel, bronze, and caulking wire. Materials must be delivered within 14 days of request. Deliverables include high-quality materials, original packaging, manufacturer warranties, and test certificates. A non-compulsory clarification meeting is scheduled for 17 June 2026 via Microsoft Teams. The tender requires a minimum functionality score of 80% and closes on 24 June 2026 at 10h00.