Transformer Supplies, Installation and Maintenance Tenders

22Open Tenders
5Closing This Week
10Added This Month

Browse current and past Transformer Supplies, Installation and Maintenance tenders published by South African government departments, municipalities, state-owned entities and private companies looking to procure transformer supplies, installation and maintenance.

Transformer Supplies, Installation and Maintenance tenders typically call for the supply of goods, delivery of services, or execution of works related to transformer supplies, installation and maintenance. The exact scope, specifications and deliverables vary from tender to tender, so always check the attached documentation for the full requirements before bidding.

Looking across past listings, Transnet SOC Ltd, ESKOM and Department of Public Works are among the most frequent issuers; and KwaZulu-Natal, Gauteng and Western Cape account for the bulk of these listings geographically.

Listings link through to the original notice or Tender Bulletin entry, showing the closing date, tender reference number and any attached documents, so you can confirm the requirements before submitting a bid.

To find out more about a specific listing, open the tender and review the attached documentation, then contact the persons named in the document to submit your transformer supplies, installation and maintenance tender. Have a transformer supplies, installation and maintenance project of your own? Submit a Request for Quotation via our Send Us Your Tenders page and we will distribute it to our network of subscribers, who will respond directly with quotations so you can choose a suitable supplier.

Total Posts: 190
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Tender Title Tender Number Briefing Date Closing Date
Dcs-groenpunt: Raw Water Substation: Request Servicing of Transformers, Swith Gear, All Circuit Breakers And Isolators ID-3272206 - 2026-10-21
11:00
The Design, Manufacture and Testing Ex-works of Various Types of Miniature Substations Over a 5 (five) Year’s Period on an “as and when Required” Basis to the Distribution Division E1008DXMWPR 2026-10-14
10:00
2026-11-30
10:00
Rfq:specifications Supply and Installation of Battery Charger Cabinet at Langlaagte Signal Cabin Distribution Substation and Transformer Magnetic Oil Gauge at Germiston Rhino Distribution Substation 10375081 2026-10-13
11:00
2026-10-20
10:00
Supply and Delivery of Transformers (prices Valid until 30 June 2027). WEB 79: 2026/2027 - 2026-10-14
10:00
Medium voltage infrastructure maintenance ( 6.6KV & 11KV) RFQ/OBP249/2026/27 2026-10-12
10:30
2026-10-19
16:00
Rfq:supply and Installation of Battery Charger Cabinet at Langlaagte Signal Cabin Distribution Substation and Transformer Magnetic Oil Gauge at Germiston Rhino Distribution Substation 10375081 2026-10-13
11:00
2026-10-20
10:00
The supply and delivery of ring current transformers 84G/2026/27 - 2026-11-09
10:00
The Supply and Delivery of Ring Current Transformers 84G/2026/27 2026-10-16
09:00
2026-11-09
10:00
Erratum: Construction Of New Morula View 2 X 20 Mva 33 Kv/11 Kv Substation 01-2026/2027 2026-10-14
10:00
2026-11-10
12:00
Appointment of a Service Provider for Maintenance,repairs and Emergency Call Out on Various Critical Mechanical Andelectrical Systems at Council for Geoscience Offices for a Period Ofthree (03) Years. CGS-2025-33NM 2026-10-09
11:00
2026-10-28
11:00
Various Tender Adverts for October 2026 47/2026 - 2026-10-23
12:00
Supply, Install, Test and Commission of 1x 1mva Transformer at Tshipise 50 OF 2026 - 2026-10-23
12:00
Supply, Install, Test and Commission of 1x 2.5mva Transformer at Roodewal Substation 49 OF 2026 - 2026-10-23
12:00
Repair of Load Tap Changer of 1x 2000kva Transformer at Makhado Park Substation 48 OF 2026 - 2026-10-23
12:00
Repair of Leaking Pressure Relief Valve at Makhado Park Substation 47 OF 2026 - 2026-10-23
12:00
Repair of Leaking Pressure Relief Valve at Makhado Park Substation 47 of 2026 - 2026-10-23
12:00
Supply, Install, Test and Commission of 1x 1mva Transformer at Tshipise 50 of 2026 - 2026-10-23
12:00
Repair of Load Tap Changer of 1x 2000kva Transformer at Makhado Park Substation 48 of 2026 - 2026-10-23
12:00
Supply, Install, Test and Commission of 1x 2.5mva Transformer at Roodewal Substation 49/2026 - 2026-10-23
12:00
For the Design, Supply, Repairs, Modification, Installation, Testing and Commissioning of Traction (3kv Dc) and Distribution (11 Kv & 6.6 Kv Ac) Substations on an as and when Required Basis for a Period of Twenty-four (24) Months, Central & Container Corridors TRIM/2026/05/0875/5137/RFP 2026-10-08
10:00
2026-10-29
12:00
Rfi No: E3621dxkznou To Design, Manufacture, Transport, Install and Commission the Outdoor 88kv-132kv Mixed Technology Gi Switchgear (mts) of the ‘hybrid’, Dead-tank Compact Design in Accordance with Eskom Specification #240-59030436 and to Provide Training to Eskom Staff in the Kwazulu Natal Operating Unit. E3621DXKZNOU - 2026-11-30
10:00
Boq Umfulamhle Ward 50 Conn Hare Upriced - - -
Supply and Delivery of Electrical Material SLM/SCM/27/2026/2027 - 2026-10-05
12:00
Tender Notice and Invitation Morula View Sub Station Final 01-2026 2026-10-05
10:00
2026-10-28
12:00
Supply and Delivery of Electrical Components E2126TSSERI 2026-09-30
10:00
2026-10-16
10:00
Construction of New Morula View 2 X 20mva 33kv/11kv Substation [cidb Grading 8ep or Higher] 01-2026/2027 2026-10-05
10:00
2026-10-28
12:00
Appointment of an Electrical Contractor For: 1. Supply and Delivery of 1000kva X 1 Mini Substation for Crus. 2. Supply, Delivery and Installation of 5 X 500kva at Longhomes, Homes 2000 Bhongweni Location, H&h Blocks, Drakensburg Motors Industrial Si GKM 12-26/27 (RE-ADVERTISEMENT) 2026-10-05
11:00
2026-10-19
12:00
Scmq 49/05/2026: Request for Quotations from Suitably Qualified Service Provider for Three-phase Electrical Installation Testing and Issuance of Certificate of Compliance (coc) at Agriculture Offices in Ladybrand. 2) Three Phase, Single Phase, Electrical SCMQ 49/05/2026 - 2026-10-08
11:00
Bid Document Upgrade of 11kv Mini Substations (re-advertisement) -closing 19 October 2026 GKM 12-26/27 2026-10-05
11:00
2026-10-19
12:00
Advert - Mini Substations Upgrade (re-advertisement)-closing 19 October 2026 GKM 12-26/27 2026-10-05
11:00
2026-10-19
12:00
Voltage Transformer 50va Primary 230v GRS 416 - 2026-09-30
11:00
Panel for Service Providers to Provide Testing, Inspection, Maintenance, Repairs, and Servicing Transformers and Various Medium Voltage Motors, Electrical Distribution and Protection Equipment for Amatola Water Pump Stations and Water Treatment Works for Three (3) Years on Ad-hoc Basis AW2026/27/03 2026-10-01
14:00
2026-10-16
11:00
Panel for Service Providers to Provide Testing, Inspection, Maintenance, Repairs, and Servicing Transformers and Various Medium Voltage Motors, Electrical Distribution and Protection Equipment for Amatola Water Pump Stations and Water Treatment Works for AW2026/27/03 2026-10-01
14:00
2026-10-16
11:00
Request for Proposal (rfp) for the Provision of Maintenance, Servicing and Repairs of Substations and Generators on an as and when Basis for a Period of 36 Months in the Western Cape Region WCR/05/04/2026 2026-10-06
10:00
2026-10-23
12:00
Request for Proposal (rfp) for the Provision of Maintenance, Servicing and Repairs of Substations and Generators on an as and when Basis for a Period of 36 Months in the Western Cape Region WCR/05/04/2026 2026-10-06
10:00
2026-10-23
12:00
Design, Supply, Repairs, Modification, Installation, Testing and Commissioning of Traction (3kv Dc, 25kv and 50kv Ac) and Distribution (11 Kv & 6.6 Kv Ac) Substations on an as and when Required Basis for a Period Of Twenty-four (24) Months, Cape & Ore Corridors TRIM/2026/05/1059/5954/RFP 2026-09-30
10:00
2026-10-20
12:00
Trim/2026/05/0901/5269/rfp TRIM/2026/05/0901/5269/RFP 2026-09-10
10:00
2026-09-28
12:00
The Appointment of a Service Provider for the Mantenance of Transformers for Sabc Auckland Park Offices for a Period of Three (3) Years. RFP/LOG/2026/10252089/22 2026-09-28
10:00
2026-10-07
12:00
Transformer Subcontracting- Full Rewind of Various Transformers for a Period of 6 Months E1926TSSERI 2026-09-22
11:00
2026-10-06
10:00
Supply and Delivery of a 1mva Mini Substation (rmu) to Lethabo Power Station on a Once-off Basis E3339GXGPLETR - 2026-10-05
10:00
Tender Cancellation: Eri/2025/tss/17 ERI/2025/TSS/17TC - 2026-10-06
11:00
Centlec (soc) Ltd, Hereafter Referred to as Centlec, a Municipal Entity, Distributing Electricity in the Area of Mangaung Metro Municipality, Request Proposals and Bids, from Registered Electrical Consulting Engineers with Their Applicable Professional Teams, for the Design and Turnkey Project Management, Specification, Manufacturing, Supply, Installation, Testing, Commissioning and Handing Over of Three New 33/11kv 10mva Transformers Complete with Tap Change Control and Protection Facilities, Which Includes Amongst Other All Civil and Electrical Works, with the Upgrading of the Associated Existing 11kv Switching Infrastructures, and All Other Related Protection, Quality Assurance, Communication, Monitoring, Scada, Metering Equipment, Mounted in Control Panels, as Well as Alarm and Security Surveillance Systems for the Existing Botshabelo Substation T and W 33/11kv Distribution Centres for a Period of Thirty-six (36) Months. RFP15/2026 2026-09-23
09:00
2026-10-15
11:00
Rfq-supply and Deliver of Ring Current Transformer by 21 September 2026 7000017318 – (SC10108491) - 2026-09-21
12:00
Appointment of a Single Service Provider for Voltage Transformer (vt) Fault Diagnostics, Engineering Report and Recommendations, Supply, Replacement, Testing and Commissioning RFQ/VTT/2026 2026-09-21
11:00
2026-09-30
11:00
Service, Repair and Maintenance of 11kv Transformer and Switchgear (1 Ep or Higher). Tech Supp 18/26 - 2026-09-28
11:00
Appointment of a Single Service Provider for Voltage Transformer (vt) Fault Diagnostics, Engineering Report and Recommendations, Supply, Replacement, Testing and Commissioning. RFQ/VTT/2026 2026-09-21
11:00
2026-09-30
11:00
Repair of Blinkklip 3 Kilovolt Direct Current Traction Substation (northern Cape). TFR/2026/09/0002/114766/RFP 2026-09-25
11:00
2026-10-16
10:00
Rfq-maintenance of Miniatures in Empangeni by 18 September 2026 70000017287(10108283) - 2026-09-18
00:00
Request for Quotations from Suitably Qualified Service Providers to Supply New Battery Tripping Units (b.t.u), Repair Power Transfromers Bushing and Service Power Transformers at Fidel Castro Building, Medfontein, O.r Tambo and Furniture Factory in Bloemf SCMQ 148/03/2026: - 2026-09-25
11:00
Supply and Delivery of Silica Gel Breathers at the Jameson Park Depot TPL/2026/09/0624/11370/RFQ - 2026-09-11
13:00
Total Posts: 190

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