Supply and Installation of 132kv and 66kv Primary Bushings for 3kv Dc Traction Transformers and Refurbishment of Main and Auxiliary Transformers at Muldersvlei, Huguenot, Soetendal, Gouda, Sandhills, Hugo, Quarry and Leeu-gamka Substations

WRAC-BLQ-54954

See details below or the tender documentation

Tender Closed on: 2025-12-11 11:00

Electrical Equipment and Supplies, Electrical Services, Transformer Supplies, Installation and Maintenance

Bellville, Gouda, Western Cape

Transnet SOC Ltd

Scroll down for tender details and to access the tender documents

Account Functions

You will need an account login to View Tender Documents, Create a Business Listing on the site or to add your details to show your interest in joining a Joint Venture or working as subcontractor for this tender


  • Sign Up
Or Login Using
Please wait. Signing you in...
Or Login Using
Please wait. Signing you in...
Lost your password? Please enter your username or email address. You will receive a link to create a new password via email.
Tender Number: WRAC-BLQ-54954
Department: Transnet SOC Ltd
Tender Type: Request for Proposal
Province: Western Cape
Closing Date: Thursday, 11 December 2025 - 11:00
Place where goods, works or services are required: various locations - various locations - various locations -
Special Conditions: Compulsory Tender Clarification Meeting two days : Day 1: Bidders meet at the Transnet Park Building, Robert Sobukwe Rd, Bellville (parking lot) 10 Nov 2025 at 10:00 and proceed to: • Muldersvlei – 22km from Bellville • Huguenot – 43km from Bellville • Soetendal – 68km From Bellville • Gouda – 94km from Bellville • Sandhills – 97 km from Bellville Day 2: Bidders meet by the Total garage in Touwsrivier on 11 November 2025 at 10:00 and then move to the following sites: • Hugo – 7km from Touwsrivier • Quarry – 19km from Touwsrivier • Leeu- Gamka – 208km from Tousrivier Xolile Damba for directions : 083 781 7376 / Fortunate Dayi on 083 795 1715. Tenderer must use own transport and accommodation
ENQUIRIES:
Contact Person: Estelle van Wyk
Email: [email protected]
Telephone number: 021-940-1901
FAX Number: N/A
BRIEFING SESSION:
Is there a briefing session?: Yes Is it compulsory? Yes
Briefing Date and Time:
Briefing Venue: Transnet Park Building, Robert Sobukwe Road, Bellville

This tender is also available from www.etenders.gov.za


Tender Summary

Objectives

The primary objective of this tender is to supply and install 132kV and 66kV primary bushings for 3kV DC traction transformers, as well as to refurbish main and auxiliary transformers at specified substations. The project aims to restore transformer functionality, improve network availability, and ensure high-quality, safe, and compliant installation and refurbishment of electrical equipment.

Scope

The scope includes:

  • Supply and installation of 132kV and 66kV primary bushings for 3kV DC traction transformers.
  • Refurbishment of main and auxiliary transformers at the following substations: Muldersvlei, Huguenot, Soetendal, Gouda, Sandhills, Hugo, Quary, and Leeu-Gamka.
  • Preparation, cleaning, painting, and corrosion protection of transformer tanks and components.
  • Testing, inspection, and commissioning of refurbished transformers and new bushings.
  • Ensuring safety, quality, environmental standards, and compliance with relevant specifications and standards.

Technical Requirements

The technical requirements specify that:

  • Transformers shall be suitable for outdoor use, oil natural air natural (ONAN) cooled, and comply with SANS 60076-1.
  • Design shall minimize harmonic disturbances, with primary windings star-connected and secondary windings configured for six or twelve-pulse rectification.
  • Provision for a tertiary winding for auxiliary transformers, rated for 50kVA, 400V 3-phase (230V AC single phase).
  • Temperature rise shall not exceed 65°C under continuous full load; overload conditions shall have specified limits.
  • Voltage ratios and tap changers shall meet specified ranges (+/- 2.5% or +/- 5%) with lockable, manual operation.
  • Insulation levels, bushings, and mechanical strength shall meet relevant standards (SANS 60137, IEC, etc.).
  • Transformers shall be painted with specified systems (galvanized, epoxy, or water-based) and corrosion protection measures.
  • All testing, inspection, and commissioning shall conform to SANS 60076, IEC standards, and Transnet specifications.

Skills Requirements

  • Qualified electrical engineers and technicians with experience in transformer design, refurbishment, and installation.
  • Personnel certified in relevant safety, health, and environmental standards, including hazard identification, risk assessment, and safe work procedures.
  • Experience in galvanizing, painting, and corrosion protection of steel structures.
  • Ability to perform detailed testing, including dielectric, temperature rise, and sound level measurements, with certification from accredited laboratories.
  • Capability to develop and implement quality assurance and control systems aligned with ISO 9001 and Transnet standards.
  • Skilled project management personnel to oversee installation, testing, and commissioning activities, ensuring compliance with safety and technical specifications.
This summary is AI generated. Download the tender documents for all the information.

How to Submit a Response / Quote to this Tender

The information needed for submitting your quote is in the description of the tender and the Tender Documents. You will also need documents and templates supplied by the entity that issued the tender, in order to supply the correct business and quote information.

To get the Tender Documents, click on the “Download Tender Documents” button below. This will take you to the Download page for this specific tender. To download the documents, you will need to create a Free Download account and then Login to this account. There is a Registration and Login form on the Download page, or above the tender description on this page. There are also Register and Login links at the top of all pages of this website.

Once you have the Tender Documents, complete them with your details and the quote details and submit to the entity or organisation that issued the tender. The details and method to submit are in the tender description and the tender documents.

Joint Ventures, Consortia and Subcontracting:

Most large tenders are composed of tasks in a number of different fields, and it is not always possible for a single company to cater for all of them, and therefore Joint Ventures and Consortia are formed to then submit a tender together.

Government tenders are also requiring the subcontracting of a percentage of the tender work, and the trouble is then finding Subcontractors to comply with the tender requirements

To assist companies with finding tender partners and subcontractors, you can now submit your contact details and company information on this page, so other interested parties can contact you for purposes of forming Joint Ventures and subcontracting

You will need to supply your details on every tender you are interested in tendering for. For this you need an active Business Listing - Register and Login at My Account to create a Business Listing

NOTE: This is not a tender application form, it is meant to facilitate the meeting of partners to form a Joint Venture or Subcontractor relationship for this tender only


To submit your details for this tender, you will need to Register an account - see the Registration form on this page or go to My Account

If you already registered, please login at My Account

You will also need to create a Business Listing in order to show your information here

Potential Subcontractor and Joint Venture Partners

To view a list of Businesses that match the Categories of this tender,
please Subscribe to a Paid Notification Plan

(If you are already a Paid Subscriber - not Trial, please Login to view this information on this tender)

Request Quotes from Private Companies

Request Quotes from Private Companies for your Tender or Project. Can also possibly be useful in finding Private Companies or Individuals for Subcontracting work to for this or other tenders:

Why not let us send tenders to your inbox?

from R120 per month