Supply and delivery of three-phase transformer winding analyzer for ESKOM – gauteng

Annah Serite, Quality Officer, Eskom. Document signed on 05/05/2026.

Submit the completed and signed Form A (Template Identifier 240-43921804 Rev 3) to acknowledge acceptance of Eskom Supplier Quality Requirements per 240-105658000 Specification and ISO 9001 Standard. Key points: Only one applicable category may be selected (Category 4 is pre-marked in this tender). Ensure the form is signed by the tenderer’s quality representative.

Supply and delivery of 3 x True Three Phase Transformer Winding Analyser. Must comply with: Eskom Supplier Quality Requirements (240-105658000 Specification) and ISO 9001 Standard. Key clauses include: Pre-Contract Award Quality Requirements, Contract Execution, Supplier Quality Performance Monitoring, Eskom Rights of Access/Information, Preservation, Quality Audits, Management of Nonconformities, and Special Processes.

Must comply with Eskom Supplier Quality Requirements (240-105658000 Specification) and ISO 9001 Standard. Tenderer must complete and sign Form A to confirm adherence. ISO 9001 clauses 4-10 and principles 1-7 are applicable as per the document.

The tender document does not specify any important dates such as briefing sessions or clarification deadlines.

Technical Contact:

• Elliot Sithole

Note: No contact details (phone or email) are provided for Elliot Sithole.

Returnable Documents:

• Bidders must ensure all required returnable documents are submitted as per the tender requirements.

The tender document does not specify the evaluation criteria or scoring method.

The tender requires the supply and delivery of a three-phase transformer winding analyzer with the following specifications:

General:

• Make
• Model
• Place/Country of manufacture
• Warranty: 24 Months (supported by OEM's local agent)
• Weight: <20kg

Testing Capabilities (must perform with one instrument):

• Turns ratio: up to 250 V AC / 101mA - 10A AC
• Excitation/Magnetization (open circuit test): test current up to 10A AC or above
• Winding DC resistance: Up to 100 V or above and up to 30 A true DC or above
• Dynamic resistance measurement (DRM) / Continuity test: Up to 100 V or above and up to 15 A DC or above
• Heat run – internal temperature
• Dry out – internal temperature
• Contact resistance Test: up to 30 A true DC or above
• Short circuit impedance (leakage reactance): 0-250 V AC / 0-11 A AC
• Frequency response of stray losses Test: Frequency range, 40 – 450 Hz or higher
• Vector group verification
• Demagnetization
• Magnetic balance test
• Transformer losses / efficiency Test
• Capability to test all 3 phases simultaneously
• Capability to test individual phases separately
• Inclusion of all test leads and connections for all 3 phases (primary and secondary) without adjusting test setup
• Emergency stop button
• Dead-man's switch
• Warning lights

Included Accessories & Cables:

• PROFFETIONAL & EXPECT 18m Test Leads, 16 Amp H leads with red jacket and red, yellow, blue, and white clamps (4 total).
• PROFFETIONAL & EXPECT 18m cables, 32 Amp X leads with black and white stripe jacket and red, yellow, blue, and white clamps (4 total)
• USB Printer Paper (x48 rolls)
• Transit case (for instrument)
• Motor current monitor
• Temperature probe kit

Test Software:

• PowerDB Control
• Custom application control
• Transformer load, no-load, and efficiency measurements
• Frequency response stray losses
• Dynamic resistance measurements
• Transformer heat run / cool down measurements
• Full report generator that builds the report as you test

User Interface:

• Touch screen: Size - 25.6 cm (10.1 in); Resolution - 1024 x 600 Resolution.
• Customizable reports

Standards & Support:

• Supported standards: IEC
• Frequency of calibration: 2 years intervals
• Online (Remote), Local representation and support available within 48 hrs upon request.

The tender document does not specify any financial requirements such as pricing format, bonds, guarantees, payment terms, or financial capacity.

No specific compliance requirements (e.g., CSD, tax, B-BBEE, CIDB, CIPC, local content) are detailed in the provided document excerpt.

Elliot Sithole, Electrical Test Manager

Supply and deliver 3 x True Three-phase transformer winding analyzer test instruments with the following capabilities:

• Perform tests: Turns ratio, Excitation/Magnetization (open circuit test), Winding DC resistance, Dynamic resistance measurement (DRM)/Continuity test, Heat run (internal temperature), Dry out (internal temperature), Contact resistance test, Short circuit impedance (leakage reactance), Frequency response of stray losses, Vector group verification, Demagnetization, Magnetic balance test, Transformer losses/efficiency test.
• Capability to test all 3 phases simultaneously or individually.
• Include all test leads, accessories, and connections for testing all 3 phases (primary and secondary) without adjusting the setup.
• Equipped with emergency stop button, dead-man's switch, and warning lights.
• Include test and system control software with customizable test reports compliant with IEC 60076-1 standards.
• Calibration certificates required, issued within the past 3 months from tender closing or later. Periodic calibration frequency: 2-year intervals or longer.
• Local representation and support in South Africa with a maximum 48-hour response time.

Delivery date: July 2024 (or as per Batch Order). Starting date: July 2026. Defects liability period: 12 weeks after delivery. Correction of defects period: 1 week after delivery. Assessment day: Last day of each month. Period for reply: 2 working days.

Submit the following returnable documents: signed Form of Offer and Acceptance, completed Contract Data (Part C1.2), Price Schedule (Part C2.2), and Schedule of Deviations (if applicable). Within one week of contract award, provide securities, bonds, guarantees, proof of insurance, and any other required documentation. Failure to submit these may result in disqualification. For alternative tender offers, use separate, endorsed copies of the Form of Offer and Acceptance marked ‘Alternative Tender No. _____’.

Supply and deliver 3 units of True Three-phase transformer winding analyzer test instruments with the following capabilities: turns ratio, excitation/magnetization (open circuit test), winding DC resistance, dynamic resistance measurement (DRM)/continuity test, heat run (internal temperature), dry out (internal temperature), contact resistance test, short circuit impedance (leakage reactance), frequency response of stray losses test, vector group verification, demagnetization, magnetic balance test, transformer losses/efficiency test. Must test all 3 phases simultaneously or individually without adjusting setup. Includes all test leads, accessories, and connections for primary and secondary testing. Must have emergency stop button, dead-man's switch, and warning lights. Includes test and system control software with customizable reports per IEC 60076-1 standards. Calibration frequency: 2-year intervals or longer. Deliver with current calibration certificates (issued within 3 months of tender closing or later). Local South African representation and support required with max 48-hour response time. Supplier must provide demonstration and training for up to 18 Eskom employees at Eskom premises after delivery. Compliance with Eskom Health & Safety requirements mandatory during delivery, demonstration, and training.

Pricing must be fixed and free of escalation. Use NEC3 SSC Price Schedule format: enter rates and quantities for each item, or lump-sum prices. Total price must include all work and deliverables. Invoices payable within 30 days of receipt of tax-compliant invoice and supporting documentation. Supplier must include Purchaser’s VAT number (4740101508) on all invoices. Delay damages: 0.1% per week up to 10% of purchase order value. Interest on late payment: 0.75% per complete month of delay. Supplier’s liability for indirect/consequential loss is limited to R0.00.

Supplier must be B-BBEE compliant. Must notify Eskom within 7 days of any change in B-BBEE status and submit updated verification certificate within 30 days. Failure to notify may result in termination. Supplier must comply with Value Added Tax Act and include VAT registration details on invoices. No cession, delegation, or assignment of rights/obligations without Eskom’s written consent. Supplier must cooperate with investigations into prohibited actions (corruption, fraud, collusion, coercion, or obstruction) and ensure subcontractors/agents do the same. Termination may occur if prohibited actions are taken.

ESKOM Representative: Annah Serite. Document issued on 5 May 2026.

Submit the following returnable documents as part of your bid: Form A (completed and signed).

Evaluation is based on quality requirements divided into sections with the following scoring: Section A (QMS Requirements ISO 9001) - Max 3 points: A.1 Quality Method Statement (use Template Ref 240-126469599), A.2 Quality Policy (approved by top management), A.3 Quality Objectives (approved by top management), A.4 Control of documented information (Clause 7.5 ISO 9001:2015), A.5 Control of nonconforming outputs (Clause 8.7 ISO 9001:2015), A.6 Nonconformity and Corrective Action (Clause 10.2 ISO 9001:2015), A.7 Internal Audit (Clause 9.2 ISO 9001:2015). Section B (Evidence of QMS in operation) - Max 2 points: B.1 Roles, responsibilities, and authorities (Organization chart and Responsibility matrix, Clause 5.3 ISO 9001:2015), B.2 Control of Externally Provided Processes (Clause 8.4 ISO 9001:2015). Section C (Contract Quality Plan) - 0 points: Draft Contract Quality Plan (Ref ISO 10005). Section D (Quality Control Plan) - 0 points: Draft/Example of Inspection and Test Plan (ITP) or Quality Control Plan (QCP). Section E (Additional Requirements) - 1 point: E.1 Form A completed and signed.

Supply and delivery of 3 x True three phase transformer winding analyzer. Quality requirements must comply with Specification 240-105658000 and Supplier Quality Management Revision 7.

Quality Management System (QMS) must comply with ISO 9001:2015. Objective evidence of documented QMS required, even if not certified. Specific clauses referenced: 5.3 (roles, responsibilities, and authorities), 7.5 (control of documented information), 8.4 (control of externally provided processes), 8.7 (control of nonconforming outputs), 9.2 (internal audit), 10.2 (nonconformity and corrective action).

Eskom’s/Client’s OHS Representative (Designation, Signature, Date). Development Team: Diane Maunatlala.

Submit the following returnable documents: For all tenderers: 1) Signed acknowledgement of Eskom's OHS legal and other requirements (Annexure B). 2) OHS plan addressing project/scope OHS risks, aligned with Eskom's health and safety specifications. 3) Baseline OHS Risk Assessment (BRA) with methodology. 4) Valid Letter of Good Standing (COIDA or equivalent). 5) OHS policy signed by CEO, compliant with OHS Act Section 7. For suppliers with auditable OHS systems: 1) Signed Annexure B. 2) ISO 45001 certificate or equivalent. 3) Valid Letter of Good Standing (COIDA or equivalent).

1. Valid Letter of Good Standing (COIDA or equivalent). 2) OHS policy signed by CEO, compliant with OHS Act Section 7. 3) ISO 45001 certification or equivalent (if applicable for auditable OHS systems).

Submit the following returnable documents: For all tenderers: 1. Signed Annexure B (acknowledgement of Eskom's OHS legal and other requirements). 2. OHS Plan addressing project/scope OHS risks, aligned with Eskom’s health and safety specifications. 3. Baseline OHS Risk Assessment (BRA) including methodology, identifying and managing Safety, Health, and Environmental risks. 4. Valid Letter of Good Standing (COIDA or equivalent). 5. OHS Policy signed by CEO, compliant with OHS Act Section 7. For suppliers with certified auditable OHS systems (Part B): 1. Signed Annexure B. 2. ISO 45001 certificate or equivalent. 3. Valid Letter of Good Standing (COIDA or equivalent).

OHS Compliance: 1. Submission of signed OHS policy compliant with OHS Act Section 7. 2. Valid Letter of Good Standing (COIDA or equivalent). 3. For certified suppliers: ISO 45001 or equivalent certification required.

Returnable Documents: Signed Acknowledgement Form (Annexure B) must be submitted, confirming understanding of Eskom OHS legal and other requirements. The form must include: Company/Supplier Name, Name of Authorised Person (CEO/Director/Managing Director), Signature, Date, and Witness Signatures (x2).

Mandatory OHS Compliance: Supplier must comply with: Eskom Contractor Health and Safety Requirements Standard 32-136, OHS specifications/requirements provided by Eskom, Occupational Health and Safety Act, Compensation for Occupational Diseases and Illnesses Act. Post-award, supplier must align company processes with Eskom’s OHS policies, procedures, and standards. Penalties apply for non-conformance by the supplier, its contractors, or sub-suppliers. All employees (including contractors/suppliers) must undergo Eskom induction. Main supplier responsibilities: Demonstrate selection criteria for appointing contractors/suppliers, Notify Eskom prior to appointing contractors/suppliers, Ensure contractors/suppliers have adequate resources and competencies, Manage contractors/suppliers to ensure compliance with legal and Eskom requirements, Monitor contractors/suppliers via audits/assessments for OHS compliance, Provide grounds for termination of contractor/supplier work, Address all non-conformances by contractors/suppliers directly. Eskom may verify compliance and request copies of testimonials/references and client contact details for similar past work.

Closing date: 02 June 2026 at 10:00. Non-compulsory clarification meeting: 19 May 2026 at 10:00 via MS Teams (Eskom Rotek Industries). Tender validity period: 120 days from closing. Clarification queries deadline: 10 working days before closing (21 May 2026).

Eskom Representative: Nomasondo Mahlangu, Tel: 011 621-3069, Email: [email protected]. Fraud/corruption reporting: 0800 11 2722 or [email protected]. Submission portal: https://tenderbulletin.eskom.co.za.

Submit electronically via Eskom E-Tendering portal (https://tenderbulletin.eskom.co.za) by 02 June 2026 at 10:00. Late submissions are disqualified. Mandatory returnables at closing: Annexure A (Authorisation Form), B (Acknowledgement Form), C (Tenderer’s Particulars), D (Integrity Declaration), E (CPA for Local Goods/Services), F (CPA for Imported Goods/Services if applicable), G1-G4 (SBD 6.2 Local Content Declarations if applicable), H (SBD 1), I (SBD 6.1 Preference Points Claim), J (SBD 4 Bidders Disclosure), Tax Clearance Certificate, COIDA Certificate, Employment Equity Compliance (SA tenderers only), and completed pricing schedule (PDF + Excel). Joint ventures must submit a valid JV agreement and designated bank account details. Failure to submit mandatory documents by the deadline results in disqualification. Clarification queries must be submitted in writing to the Eskom Representative at least 10 working days before closing.

Evaluation follows a multi-stage process: Step 1: Basic Compliance (pass/fail) – checks submission of all mandatory returnables. Step 2: Functionality (pass/fail) – technical mandatory requirements (Yes/No criteria) as per A&B schedule. Step 3: Price and Preference (80/20) – Price scored out of 80 (inclusive of VAT, corrected for errors, excluding contingencies, adjusted for deviations, NPV considered). Preference points (20) awarded per B-BBEE level. Step 4: Objective Criteria – SHEQ evaluated per Annexure C2 and C5, Quality per QMS. Step 5: Financials – Audited financial statements for previous 18-36 months (or last year if unavailable). Tenders ranked by total points (Price + Preference). Negotiations held with highest-ranked supplier first. Failure to submit Specific Goals evidence scores 0 for that criterion but does not disqualify.

Supply and delivery of a True Three Phase Transformer Winding Analyzer Test Instrument. The instrument is an advanced version of existing Resistance Bridge equipment, with enhanced technology and additional diagnostic capabilities. Must comply with Eskom’s Supply Quality Management Specification (240-105658000) and ISO 9001 Standard (240-68099512). Cataloguing/codification not required as it falls under existing transformer testing category. Technical mandatory requirements are detailed in the accompanying A&B schedule (pass/fail criteria).

Pricing must be inclusive of VAT, exclude contingencies, and be corrected for arithmetical errors. Unconditional discounts are considered for evaluation; conditional discounts are applied at payment. Prices scored out of 80 points. Payment terms: 30 days for contracts ≤ R50M, 60 days for contracts > R50M (from receipt of undisputed invoices). Audited financial statements for the previous 18-36 months (or last year if unavailable) required. For JVs/SPVs, each partner must submit financials. Start-ups (<12 months) exempt but must provide statements if awarded. No performance security required.

Mandatory: CSD registration (CSD number/report), Tax Clearance Certificate (or SBD1 for foreign suppliers with no SA footprint), COIDA Certificate (SA tenderers only), Employment Equity Compliance (SA designated employers only), Integrity Declaration (Supplier Integrity Pact), CIDB grading (if applicable, not required for this tender). B-BBEE status certificate or sworn affidavit required for preference points. SHEQ compliance: Valid Letter of Good Standing (Compensation Fund/insurer), documented SHE Plan, risk assessments, and signed Eskom rules acknowledgement. Quality: Compliance with Supply Quality Management Specification (240-105658000) and ISO 9001 (240-68099512). Local content: SBD 6.2 and Annexures G1-G4 if designated materials are included.

Returnable Documents: Submit signed copy of Contractor Environmental Compliance Proforma (TRMFM-0038). Include, if applicable: Copy of Bio-Remediates Register (TRM-FM-0067), Waste Disposal Control Register (TRM-FM-0086), Hazardous Waste SANS Classes (TRM-FM-0088), Environmental Incident Notification/Flash/Report (TRM-FM-0084), Soil Erosion Assessment Table (TRM-FM-0088), Chemical Spill Assessment Table. Ensure all documents are complete and submitted as per tender requirements.

Scope: Supply and delivery of a three-phase transformer winding analyzer. Critical tasks may involve working at heights or handling machinery/equipment. Audit and approval processes apply, including file approval and inspector sign-off. Document the number of employees and maintain an equipment inventory list for all items on the project site.

Mandatory Compliance: Provide Letter of Good Standing with Registration Number and Expiry Date. Written contract between client and principal contractor (PO/5(1)K) required. SHE Plan must be reviewed and accepted by the client. Certifications: ISO 9001:2015, ISO 45001:2018, ISO 14001:2015. SHEQ Policy and proof of communication required. Legal Appointments: Designated employer (16.2 appointment), Responsible Supervisor, SHE Representative with formal training. Emergency Preparedness: Appoint fire equipment inspector (CR 29(h)) and competent first aider (GSR 3(1)). Provide emergency preparedness plan, fire equipment inspection checklist, first aid register, and inspection checklist. Operational Documents: Maintain tools/equipment inventory list, PPE register, PPE inspection records, housekeeping checklist, and planned job observation records. Incident Management: Appoint incident investigator (GAR 9(2)), provide incident management procedure, and maintain incident statistics. Risk Assessment: Ensure employees are trained to conduct HIRA. Provide baseline risk assessment from client, contractor risk assessment, monitoring/review plan, and risk matrix. Lifting Machinery: Provide LMO certificates, load test certificates, checklists for lifting machines and tackles, rigging procedure, and rigger training records. Working at Heights: Appoint competent fall protection implementer (CR 10(1)(a)), provide fall protection plan and rescue procedures, working at heights training certificates, ladder inspector appointment (GSR 13(a)), and procedures for inspection/testing/maintenance of fall protection equipment. Employee Competencies: Provide full names, surnames, ID numbers, home addresses, contract numbers, annual medical fitness certificates (with ORP), and proof of criminal record clearance. Grid HV Requirement: Provide ORHVS Certificate and authorization per grid. Induction: Provide training matrix, induction training syllabus, attendance register, life-saving rules acknowledgement, and ensure contractor induction is conducted by the client. Vehicle Management: Provide driver management plan, appoint vehicle inspector, ensure driver’s license and Eskom driver permit are valid, and maintain vehicle inspection checklist. Environmental: Appoint environmental representative with proof of training/skills. Provide waste management plan, relevant permits (waste generation, transportation, facility), SDS list, and environmental incident reporting forms.

Submit a signed Acknowledgement Form (Annexure B) confirming understanding of Eskom SHE Rules and other requirements. The form must be: completed by an authorised person (CEO/Director/Managing Director), include signature, date, and witness details (two witnesses).

Mandatory compliance with: Eskom Contractor Health and Safety Requirements Standard 32-136, provided SHE specifications, Occupational Health and Safety Act, Mine Health and Safety Act (where applicable), Compensation for Occupational Diseases and Illnesses Act, National Environmental Management Act. Post-award: align company processes with Eskom’s SHE policies, procedures, and standards. Ensure all employees (including contractors/suppliers) undergo Eskom and company inductions. Main supplier must: demonstrate selection criteria for contractors/suppliers, notify Eskom prior to their appointment, ensure their competence and resources, manage their compliance with legal and Eskom requirements, monitor via audits/assessments, handle non-compliance penalties, and provide termination grounds for subcontractors. Eskom may request testimonials/references for similar past work.

Submit the following returnable documents as part of your tender: - Signed acknowledgement of Eskom's OHS legal and other requirements (Annexure B). - OHS plan addressing project/scope-specific OHS risks, aligned with Eskom’s health and safety specifications. - Detailed costing for SHE management, broken down by activity or component (not lump sum), based on the scope of work and risk assessment. - Baseline Risk Assessment (BRA) including methodology, risk matrix, and OHS risk management for the scope. - Valid Letter of Good Standing (COIDA or equivalent). - OHS policy signed by the CEO, compliant with OHS Act Section 7. - Proof of OHS competency: CVs, qualifications/certificates aligned with scope, risks, and SHE plan. Additional OHS returnables may apply—refer to Annexure A (240-77433139) for explanatory notes.

Submit detailed costing for SHE management, broken down by activity or component (not lump sum). Costing must align with the overall scope of work and risk assessment.

1. Valid Letter of Good Standing (COIDA or equivalent). 2) OHS policy signed by CEO, compliant with OHS Act Section 7. 3) Proof of OHS competency (CVs, qualifications, certificates) for the scope of work and risks. 4) Signed acknowledgement of Eskom’s OHS legal and other requirements (Annexure B).