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
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
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
2026-12-14
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
Total Posts: 190

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