Transformer Supplies, Installation and Maintenance Tenders

29Open Tenders
7Closing This Week
41Added 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: 182
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Tender Title Tender Number Briefing Date Closing Date
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
Cancellation of a Tender GKM 10-26/27 - -
Request for Quotations for the Repairs of a Transformer 1 at Metro Center, B-basement, A- Block RFQ 40/2027FY/PF 2026-09-15
10:00
2026-09-22
10:30
Carry Out Oil Sampling on Twelve 11000v Trandformers GRS 863-07-26 - 2026-09-15
11:00
Draining, Replacement, Testing and Commissioning of Transformer Oil for B Ship Loader TPT/2026/09/1130/11260/RFQ 2026-09-10
10:00
2026-09-14
10:00
Silica gel breather;1000l;w/pipe adaptr GH12700129 - 2026-09-09
12:00
Supply,delivery and Installation of a 315kva 11000v 50hz Standard Miniature Substation Transformer at Kwamsane Township Cidb Grading:3ep/pe or Higher SCMU008/2026/2027 2026-09-10
11:00
2026-09-17
12:00
Supply and Delivery of 66kv Outdoor Current Transformers (350/1a), 66kv Outdoor Potential (voltage) Transformers (66kv/110v), 11 Kv Sf6 Gas-insulated Three Way and Four Way Ring Main Units (rmus) and 66kv Outdoor Sf6 Circuit Breakers INF/CEE07/2026 - 2026-10-05
10:00
Repairs to Transformer & Switchgears MGM 062 26 27 2026-09-10
11:00
2026-09-14
11:00
Repairs to Transformer & Switchgears MGM 062 26 27 TRANSFORMERS 2026-09-10
11:00
2026-09-14
11:00
Rfq-offline Minisub Maintenance for South Section (meerensee, Esikhaleni and Vulindlela) by 09 September 2026 7000017241 – (SC10108032) - 2026-09-09
12:00
Supply, Deliver and Install 4 Mva, 11kv/22kv Star/star Transformer with Open Bushings and Temperature Control T16/2026 2026-09-09
10:00
2026-09-22
12:00
Trim/2026/05/0901/5269/rfp TRIM/2026/05/0901/5269/RFP 2026-09-10
10:00
2026-09-21
12:00
Supply, Deliver and Install 4 Mva, 11kv/22kv Star/star Transformer with Open Bushings and Temperature Control T16/2026 2026-09-09
10:00
2026-09-22
12:00
Design, Supply, Repairs, Modification, Installation, Testing and Commissioning of Traction (3kv Dc and 25kv 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, North & North-east Corridors TRIM20260509015269RFP 2026-09-10
12:00
2026-09-28
12:00
Transformer Repairs and Overhauling ERI/2025/TSS/17R - 2026-09-22
11:00
Appointment of a Fully Qualified and Competent Electrical Contractor for the Maintenance and Handover of Four (4) Transformers Within Ward 3 BID NO.: 07/26/27 2026-09-16
10:00
2026-09-23
12:00
Annual Service of Transformer and Switch Gear MVH064 - 2026-09-03
11:00
Inspection of Mini Substation and Transformers EMM14.05.26 2026-09-01
10:00
2026-09-04
11:00
Appointment of a Fully Qualified and Competent Electrical Contractor for the Maintenance and Handover of Four (4) Transformers Within Ward 3 07/26/27 2026-09-16
10:00
2026-09-23
12:00
Appointment of a Fully Qualified and Competent Electrical Contractor for the Maintenance and Handover of Four (4) Transformers Within Ward 3. 07/26/27 2026-09-16
10:00
2026-09-23
12:00
Centlec (soc) Ltd, Hereafter Referred to as Centlec, a Municipal Entity, Distributing Electricity in the Area of Mangaung Metro and Other Municipalities, Request for Proposals and Bids, from Registered Electrical Consulting Engineers with Their Applicable Professional Teams, for the Design and Turnkey Project Management, Specification, Manufacturing, Supply, Delivery, Installation, Testing, Commissioning and Handing Over of Two New 33/11kv 20mva 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, Communication, Monitoring, Scada, Power Quality and Metering Equipment, Mounted in Control Panels, as Well as Alarm and Security Surveillance Systems for the Existing Coal Yard 33/11kv Distribution Centre and the Replacement / Upgrading of the Existing Electrical Infrastructure Supplying the Power Station Office Building with Electricity, for a Period of Thirty-six (36) Months. RFP14/2026 2026-09-11
10:00
2026-09-29
11:00
Service of Power Transformers dpm99 2026-08-31
10:00
2026-09-04
11:00
Refurbishment of 315kva Pole Mounted Transformer 9/2/361 - 2026-09-10
12:00
Total Posts: 182

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