Transformer Supplies, Installation and Maintenance Tenders

24Open Tenders
6Closing This Week
44Added 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: 180
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Tender Title Tender Number Briefing Date Closing Date
Description of the Service: Testing, Repair and Commissioning of Transformer at Cavendish a Unit And Georgedale Substation CRAC DNR 58039 2026-08-07
10:00
2026-08-14
12:00
Annual Service to Mini Sub Stations GJM-60(b) 26.27 - 2026-07-31
11:00
Supply and Delivery of Transformer and Drop Out Fuse SLM/SCM/02/2026/2027 - 2026-07-29
12:00
Supply, Deliver and Install 4mva, 11kv/22kv Star/star Transfomer with Open Bushings and Temperature Control T15../2026.. - 2026-08-11
12:00
Supply, Delivery, Installation, Commission, and Handover of Twenty-two (22) 3kva and One (1) 10kva Transformer-based and Tropicalised Uninterruptible Power Supply (ups) in Substations, Railyard Points, Berth 208/209 Control Desks, and Buildings in the Port of Richards, Once off TNPA/2026/07/0003/114599/RFQ 2026-08-10
10:00
2026-08-31
12:00
Supply and Delivery of Oil Immersed Current Transformers Reissue E1426TSSERIR 2026-07-29
10:00
2026-08-13
10:00
Site Meeting: Service and Repair All Transformers at Denel Irene Campus transformer001 2026-07-28
10:00
2026-07-31
11:00
Rfq-indus Sub Tx 1 T/c Change Oil and Service by 31 July 2026 7000016857 – (SC10106712) 2026-07-28
09:00
2026-07-31
12:00
Rfq-polaris Tx 1 Isolator Repairs by 30 July 2026 7000016839 – (SC10106608) 2026-07-27
10:00
2026-07-30
12:00
Transformer:power supply;pa 1641 GK12700034 - 2026-07-31
16:00
East Grid Asea Imba/e Current Transformers High Risk Replacement for Avon, Impala, Mersey and Tugela Substation – Cabling and Stringing E3248NTCSAMWP 2026-07-28
10:00
2026-08-24
10:00
Eskom Distribution Electrification Projects in the Cape Coastal Cluster-western Cape on an as and when Required Basis for a Period of 36 Months (top Up Contract) E1750DXWCR1-Reissue 2026-07-23
14:00
2026-08-05
08:00
Supply, Delivery, Installation and Connection of 100kva and 25kva Transformers at Doorndraai Dam Nature Reserve EDET G0551 - 2026-07-27
11:00
Supply, Delivery, Installation and Connection of 100kva and 25kva Transformers at Doorndraai Dam Nature Reserve EDET/QUOTE G0551 - 2026-07-27
11:00
Scmq148/2026 SMQ148/2026 - 2026-07-29
11:00
Rfq - Carina Sub Purify Tx 2 Main Tank Oil Closing by 22 July 2026 70000016749(10106146) 2026-07-17
08:30
2026-07-22
12:00
Rfq - Hydra Tx 3 Oil Purification Closing by 17 July 2026 70000016744(10106135) 2026-07-17
08:00
2026-07-22
12:00
Rfq - Scorpio Sub: Hercules 1 132kv Service Breaker & Testing Closing by 17 July 2026 7000016747 – (SC10106151) 2026-07-17
09:00
2026-07-22
12:00
Appointment of Panel of Electro-mechanical Terms Contract for Sekhukhune District Municipality for a Period of Three (3) Years SK8/3/1-03/2026/27 - 2026-08-17
11:00
Appointment of a Service Provider for Certified Data Sanitisation and Compliant E-waste Recycling of Ict Assets for the Mine Health and Safety Council. 2436 - 2026-07-16
11:00
Quotation Advertisement – Supply and Delivery of Transformer - - 2026-07-15
12:00
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 Installation Test SCMQ 49/01/2026 - 2026-07-24
11:00
Refurbishment of Substations at the Port of Cape Town, Container Terminal of Transnet Soc Ltd (reg.no.1990/000900/30) Operating as Transnet Port Terminals, (hereinafter Referred to as “tpt”) for a Period of Twenty-four (24) Months TPT/2026/07/0003/114562/RFP 2026-07-16
10:30
2026-08-27
10:00
For the Diagnosis and Repairs of 132kv/25kv Traction Transformers at Cradock Substation TRIM/2026/03/0208/2225/RFQ 2026-07-16
12:00
2026-07-24
10:00
Cradock Transformer Refurbishment TRIM/2026/03/0208/2225/RFQ 2026-07-16
12:00
2026-07-24
10:00
For the Diagnosis and Repairs of 132kv/25kv Traction Transformers at Cradock Substation TRIM/2026/03/0208/2225/RFQ 2026-07-16
12:00
2026-07-24
10:00
Supply and Delivery of Oil-immersed Current Transformers. E1426TSSERICL - 2026-07-31
11:00
Supply, Delivery, Installation and Connection of 100kva and 25kva Transformers at Doorndraai Dam Nature Reserve EDET/QUOTE G0551 - 2026-07-20
11:00
Provision of Annual Maintenance for Mini-substations and Rmu at Tnpa – Infra-electrical Department in the Port of Richards Bay TNPA/2026/06/1346/7597/RFQ 2026-07-02
11:00
2026-07-09
12:00
Supply and Delivery of 11000/420 -242 Volt +/-5% (sans 780) Power Distribution Transformers for a Period of Three Years. CE:660 - 2026-07-17
11:00
Supply and Delivery of 11000/420-242 Volt Miniature Substations and Miniature Substation Transformers for a Period of Three Years CE:648 - 2026-07-24
11:00
Refurbishment of the Substations at the Port of Cape Town TPT/2026/02/0056/1105/RFP 2026-07-15
10:00
2026-08-04
10:00
Upgrading of Electricity Supply to Maritjie Venter/tarkastad Hospital, Tarkastad SCMU3-P26/27-0369-H0 2026-07-08
11:00
2026-07-14
11:00
Service of Power Transfomers dpm99 2026-07-01
10:30
2026-07-03
11:00
Transformer Refurbishment for Electrical Department Under Koedoespoort Infra Depot TRIM/2026/04/0798/4785/RFQ 2026-06-22
10:30
2026-07-10
10:00
Provision of Annual Maintenance for Mini-substations and Rmu at Tnpa – Infra-electrical Department in the Port of Richards Bay TNPA/2026/06/1346/7597/RFQ 2026-07-02
11:00
2026-07-06
12:00
Bid Number - 2639s - Transformer and Switchgear Testing. BID - 2639S - 2026-07-30
11:00
Maintenance to Power Stations LBWG/PQ/AFL/149/26 2026-06-30
13:45
2026-07-13
11:00
Supply and Delivery of 11000/420 -242 Volt +/-5% (sans 780) Power Distribution Transformers for a Period of Three Years. CE:660 - 2026-07-17
11:00
Bid No 26 of 2026 Supply and Delivery of 1mva 22 11kv Transformer 26 / 2026 - 2026-07-06
12:00
Bid No 27 of 2026 Maintenance of 10mva 66 22kv Transformer at Levubu Substation 27 / 2026 - 2026-07-06
12:00
Design and Supply Transformer Cores and Shunts for a Period of 5 Years E0926TSSERIR 2026-06-25
10:00
2026-07-13
10:00
Appointment of a Service Provider for Insulating/testing as and when Required for 36 Months KZN/PRASA/2026/06/06/Q - 2026-07-06
12:00
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 AW2025/26/14 2026-06-25
11:00
2026-07-09
11:00
Repairs to Substations inside Compressor House, Bay2, Bay28 and Bay55 TE/2026/03/1061/3623/RFP 2026-06-04
11:00
2026-07-01
11:00
9-2-342 Supply and Delivery of Transformers 9/2/342 - 2026-06-23
12:00
Repairs to Substations inside Compressor House, Bay2, Bay28 and Bay55 TE/2026/03/1061/3623/RFP 2026-06-04
11:00
2026-07-01
11:00
9-2-299 Refurbishment of Transformers (re-advert) 9/2/299 - 2026-06-23
12:00
Maintenance of 10mva 66/22kv Transformer at Levubu Substation 27 of 2026 - 2026-07-06
12:00
Trim/2026/04/0798/4785/rfq TRIM/2026/04/0798/4785/RFQ 2026-06-22
10:30
2026-06-29
10:00
Total Posts: 180

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