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
Service and Repair of 500kva 11kv/400v Three Phase Transformer and Ht Switchgear at Grootvlei Prison Substation No. 4 ID-3236445B - 2026-09-04
11:00
Rfq-hydra Repair 40 Mva Tx 3 Oil Leak and De Rust and Paint Tx 3 by 03 September 2026 7000017199 – (SC10107987) 2026-08-31
09:00
2026-09-03
12:00
Request for Quotations for Supply of New Battery Tripping Units (b.t.u), Repair Power Transformers Bushing and Service Power Transformers at Fidel Castro Building, Medfontein, or Tambo and Furniture Factory in Bloemfontein. SCMQ148/02/2026 - 2026-09-08
11:00
Repair and Service of Rapotokwane Package Plant 9/2/349 - 2026-09-08
12:00
Upgrading of Electricity Supply to Martje Venter/tarkastad Hospital, Tarkastad SCMU3-P26/27-0661-HO - 2026-09-08
11:00
Eng2014-2026 Mossel Bay Hospital, Mossel Bay Clinics & Mossel Bay Ems ENG2014-2026 2026-09-01
14:00
2026-09-14
11:00
Provision of Major and Minor Reticulation Including the Installation of Smart Meters, Re-closers and Voltage Regulators Within Distribution Gemma Cluster-northern Cape on an as and When Required Basis Over a Period of Four (4) Years E2837DXNCOUR 2026-08-29
11:00
2026-09-08
10:00
Service and Repair of 500kva 11kv/400v Three Phase Transformer and Ht Switchgear at Grootvlei Prison Substation No. 4) ID-3236445B - 2026-09-04
11:00
Supply, Deliver, and Install 4x 50kva Auxiliary Transformers in Various Locations Under Ermelo Depot. TFR/2026/08/0003/114635/RFQ 2026-08-28
11:00
2026-09-08
10:00
Service and Repair of 500kva 11kv/400v Three Phase Transformer and Ht Switchear at Grootvlei Prison Substation No. 4 3236445 (B) - 2026-09-04
11:00
Supply, Deliver, and Install 4x 50kva Auxiliary Transformers in Various Locations Under Ermelo Depot. TFR/2026/08/0003/114635/RFQ 2026-08-28
11:00
2026-09-08
10:00
Request for Proposal for the Establishment of a Panel of Suppliers for the Design, Detailed Engineering, Manufacture, Testing at Works, Supply, Delivery, Placement on Foundation, Installation, Erection, Testing, Transportation, Commissioning and Storage of Class 1 & 2 Power Transformers for Ntcsa on an “as and When” Required Basis for a Period of Eight (8) Years with an Option to Extend for Two (2) Years. the Invitation to International Suppliers Will Be Restricted to Class 2 Transformers Only. Class 1 Power Transformers to Be Sourced Locally. E3033NTCSAMWP 2026-09-02
09:00
2026-11-16
10:00
Bid Document Upgrade of 11kv Mini Substation 2025-2026 Closing 14 September 2026 GKM 12-26/27 2026-09-01
11:00
2026-09-14
12:00
Advert Mini Substations-closing 14 September 2026 GKM 12-26/27 2026-09-01
11:00
2026-09-14
12:00
Service and Repair of 500kva 11kv/400v Three Phase Transformer and Ht Switchgear at Grootvlei Prison Substation No. 4) ID-3236445B - 2026-09-04
11:00
1. Supply & Delivery of 1 X Mini Substation 2. Supply, Delivery & Instalation of 5 X Mini Substations GKM 12-26/27 2026-09-01
11:00
2026-09-14
12:00
Annual Service to Eight Transformers 11 Kv Oil Sample EDN464.26.27 2026-08-21
10:00
2026-08-27
11:00
Supply and Delivery of Electrical Stock Items for the Period of 36 Months 8/2/1/640 - 2026-09-16
12:00
Servicing of Mv/lv Switchgear and Transformer ndh234 2026-08-17
11:00
2026-08-24
11:00
Supply and Delivery of a 40mva Power Transformer and Associated Electrical Equipment for the Eskom Substation at the Elidz ENU/26/ 40MVATRFR132/ 11kV/01 2026-08-25
12:00
2026-09-18
12:00
Supply and Delivery of Substation Material: Closing Date: 24 August 2026 RFQ 66/2026/27 - 2026-08-24
12:00
Supply and Delivery of a 40mva Power Transformer and Associated Electrical Equipment for the Eskom Substation at the Elidz ENU/26/40MVATRFR132/11kV/01 2026-08-25
12:00
2026-09-18
12:00
Chainsaw Oil - 20l GQ08266148 2026-08-13
10:00
2026-08-20
11:00
Materials for Plant Maintenance-harrower Rd. GQ08266134 - 2026-08-24
11:00
Annual Service of Mv Switchgears and Transformers at Natalia Building HOH0273-26-27 2026-08-18
11:00
2026-08-27
11:00
Supply and Delivery of a 40mva Power Transformer and Associated Electrical Equipment for the Eskom Substation at the Elidz ENU/26/40MVATRFR132/11kV/01 2026-08-25
12:00
2026-09-18
12:00
After Service Repair for Transformers HLB 089 26-27 - 2026-08-19
11:00
Rfq-hydra Ss Trfr 1 and Trfr 3 Electrical Test by 20 August 2026 7000017033 – (SC10106584) 2026-08-17
11:00
2026-08-20
12:00
Cancellation of T5/2026 CANCELLATION OF T15/2026 - 2026-08-26
08:00
Rfq15 Supply and Delivery of Substation Battery Protection Unit RFQ15 - 2026-08-20
11:00
Cancellation of T15/2026 -supply Deliver and Install a 4mva, 11kv/22kv Transformer at Somerset East Main Substation CANCELLATION OF T15/2026 2026-08-11
10:00
2026-08-25
12:00
Replacement of 60mva 132/66/33kv Transformer No.2 at Tarentaalrand Substation SCMU 26/2026 2026-08-18
10:00
2026-09-10
12:00
Replacement of 60mva 132/66/33kv Transformer No.2 at Tarentaalrand Substation SCMU 26/2026 2026-08-18
10:00
2026-09-10
12:00
Panel of Four (04) Service Provider for Supply and Delivery of Transformers and Mini Substations for a Period of Three (03) Years. 041/2025/26 - 2026-09-14
12:00
Annual Service of Mv Switchgears and Transformers at Natalia Building ZNQ/HOH/0273/26-27 2026-08-18
11:00
2026-08-27
11:00
Supply and Deliver Two Step-down Transformers TPL/2026/08/0538/9853/RFQ - 2026-08-11
13:00
Rfq-supply, Retrofit and Commission an Automatic Voltage-regulation Relay on Hydra Ss Trfr 1 Oltc Scheme by 14 August 2026 7000016988- (SC10107176) 2026-08-11
09:00
2026-08-14
12:00
The Design, Detailed Engineering, Manufacture, Testing at Works, Supply, Shipping, Transportation, Delivery, Installation, Erection, Site-testing and Commissioning of Class 1 Power Transformers on an “as and When” Required Basis Over a Five (5) Year Period for Distribution Division. E3324DXECOU 2026-08-26
11:00
2026-10-07
10:00
Erratum- T15/2026 – Supply, Deliver and Install 4 Mva, 11kv/22kv Star/star Transformer with Open Bushings and Temperature Control ERRATUM -T15/2026 2026-08-11
10:00
2026-08-25
12:00
Supply, Deliver and Install 4mva,11kv/22kv Star/star Transfomer with Open Bushing and Temperature Control T15/2026 2026-08-11
10:00
2026-08-25
12:00
Request for Quotations from Suitably Qualified Service Providers O Supply New Battery Tripping Units (b.t.u), Repair Power Transfromers Bushing and Service Power Transformers at Fidel Castro Building, Mefontein, O.r Tambo and Furniture Factory in Bloemfon SMQ148/01/2026 - 2026-08-18
11:00
Rfq-replace Rotten Lv Poles in Ngwelezana by 12 August 2026 7000016956 – (SC10107115) 2026-08-06
08:00
2026-08-12
12:00
The Establishment of an Enabling Agreement with a Panel of 20 Contractors for the Provision of Supervision, Labour, Plant, Equipment, Material (except the Big Five (poles, Transformers, Meters, Conductor and Cable) and Transport (as it Will Be Required and Authorized in Specific Circumstance) for Reticulation Projects in the Kwa-zulu Natal Operating Unit, Central East Cluster on an “as and When” Required Basis for a Period of Thirty-six (36) Months. E3262DXKZN 2026-08-12
09:00
2026-09-14
10:00
Rfq-hercules Trfr 1 Ss Power Trfr Test Sow by 07 August 2026 7000016930 – (SC10105686) 2026-08-04
09:00
2026-08-07
12:00
Rfq-supply & Deliver: Tx Silica Gel Breathers by 07 August 2026 SC 10106940 – 7000016925 - 2026-08-07
12:00
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
Rfq-hercules/phoenix Ohl Repair by 06 August 2026 7000016922 – (SC10106938) 2026-08-03
09:00
2026-08-06
12:00
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
Total Posts: 182

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