Reference: E3324DXECOU
The Design, Detailed Engineering, Manufacture, Testing at Works
ESKOM
Key Dates
Published
August 5th, 2026
Closing Date
Wednesday, 07 October 2026 - 10:00
(10 days remaining)
Description
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. Category: Manufacture of electrical equipment Type: Request for Bid(Open-Tender) Department: ESKOM
Sectors & Regions
Sectors
Regions
Documents (160)
54 - 10MVA 22-6_6kV (YNyn0)(2025).xlsx
XLSX • 52.7 KB
22_5MVA 44-2.2kV YNd1.xlsx
XLSX • 51.3 KB
111 - 160MVA 132-66-22kV (YNa0d1)(2026).xlsx
XLSX • 55.3 KB
31_5MVA 66-3.3kV YNd1.xlsx
XLSX • 51.3 KB
55- 10MVA 88-6.6kV (YNd1)(2025).xlsx
XLSX • 52.0 KB
24_5MVA 44-6.6kV YNd1.xlsx
XLSX • 51.2 KB
78 - 20MVA 132-44-22kV (YNa0d1)(2025)).xlsx
XLSX • 54.9 KB
2. 20260624_Cat1- Quality Req _DX _ Class 1 TRFR.pdf
PDF • 294.5 KB
16_2.5MVA, 88-6.6kV YNd1.xlsx
XLSX • 51.1 KB
9. Dx works information for Storage Units.pdf
PDF • 282.3 KB
21_5MVA 44-11kV YNd1.xlsx
XLSX • 51.1 KB
90 - 40MVA 132-11kV (YNd1)(2025)(High Z).xlsx
XLSX • 52.0 KB
9_2.5MVA, 22-6.6kV Yd9.xlsx
XLSX • 50.7 KB
11_2.5MVA, 44-2.2kV Yd9.xlsx
XLSX • 51.3 KB
56 - 10MVA 22-2.2kV (YNyn0)(2025-Yn).xlsx
XLSX • 51.4 KB
18_5MVA 22-6.6kV YNyn0.xlsx
XLSX • 50.3 KB
6. E-tendering Help Manual for supplier.docx
DOCX • 1103.1 KB
2. 240-56030674 Rev 2 paint spec_Signed.pdf
PDF • 1118.6 KB
58 - 10MVA 66-3.3kV (YNd1)(2025-Yn).xlsx
XLSX • 51.8 KB
106 - 80MVA 132-66-22kV (YNa0d1)(2026).xlsx
XLSX • 56.5 KB
38_10MVA 33-22kV YNyn0.xlsx
XLSX • 50.8 KB
93 - 40MVA 132-33kV (YNd1)(2025)2.xlsx
XLSX • 52.1 KB
44_10MVA 66-22kV YNd1.xlsx
XLSX • 52.1 KB
32_5MVA 88-3.3kV YNd1.xlsx
XLSX • 51.2 KB
8_2.5MVA, 22-3.3kV Dyn11.xlsx
XLSX • 50.7 KB
80 - 20MVA 22-11kV (YNyn0)(2025).xlsx
XLSX • 52.0 KB
33_5MVA 88-11kV YNd1.xlsx
XLSX • 51.1 KB
49_10MVA 88-33kV YNd1.xlsx
XLSX • 51.0 KB
4.240-109253698 CQP Template.pdf
PDF • 400.2 KB
13. ST_240-56356191 Rev 3 TRANSFORMER AND REACTOR OIL LEVEL INDICATORS SPECIFICATION.pdf
PDF • 1043.1 KB
5. E-Tenderers E-Tendering Training Acknowledgement Form (1).docx
DOCX • 116.2 KB
40_10MVA 44-11kV YNd1.xlsx
XLSX • 51.4 KB
69 - 20MVA 88-44kV (YNd1)(2025).xlsx
XLSX • 52.1 KB
28_5MVA 88-22kV YNd1.xlsx
XLSX • 51.5 KB
74 - 20MVA 132-22kV (YNd1)(2025).xlsx
XLSX • 52.0 KB
1. 240-105658000 Supplier Quality Management Specification (3).pdf
PDF • 753.5 KB
71 - 20MVA 88-6_6kV (YNd1)(2025)(High Z).xlsx
XLSX • 52.0 KB
64 - 20MVA 66-22kV (YNd1)(2025-Yn)(High Z).xlsx
XLSX • 52.2 KB
98 - 40MVA 66-11kV (YNd1)(2025).xlsx
XLSX • 52.1 KB
96 - 40MVA 66-11kV (YNyn0)(2025).xlsx
XLSX • 52.0 KB
70 - 20MVA 88-6_6kV (YNd1)(2025).xlsx
XLSX • 52.0 KB
8. ST_240-56062529 Rev 3 PASSIVE DEHYDRATING BREATHERS FITTED TO TRANSFORMERS,.pdf
PDF • 1086.2 KB
8. Dx Works information for Installation Units.pdf
PDF • 318.6 KB
110 - 90MVA 132-44kV (YNd1)(2026).xlsx
XLSX • 63.3 KB
100 - 40MVA 132-44-22kV (YNa0d1)(2025)).xlsx
XLSX • 54.5 KB
59 - 10MVA 22-3.3kV (YNyn0)(2025-Yn).xlsx
XLSX • 51.8 KB
15_2.5MVA, 66-3.3kV YNzn11.xlsx
XLSX • 51.2 KB
67 - 20MVA 88-22kV (YNd1)(2025).xlsx
XLSX • 52.1 KB
3_1.25MVA, 22-2.2kV DYN11.xlsx
XLSX • 52.1 KB
5. 240-56063867 Transformer and Reactor Rapid Pressure Rise Relay.pdf
PDF • 311.8 KB
10. 240-56535946 Transformer and reactor cooling fans.pdf
PDF • 450.1 KB
5. 20260622_ Form A Cat1 _DX_Class 1 TRFR.pdf
PDF • 214.4 KB
87 - 40MVA 88-22kV (YNd1)(2025).xlsx
XLSX • 52.1 KB
57 - 10MVA 66-33kV (YNd1)(2025-Yn).xlsx
XLSX • 51.7 KB
3. Annexure G3.pdf
PDF • 25.1 KB
81 - 20MVA 66-6.6kV (YNd1).xlsx
XLSX • 52.1 KB
2. Annexure M - Annexure B_ Acknowledgement Form.pdf
PDF • 456.8 KB
72 - 20MVA 88-44-22kV (YNa0d1)(2025)).xlsx
XLSX • 54.9 KB
6. E-tendering Help Manual for supplier.pdf
PDF • 1012.4 KB
75- 20MVA 132-3.3kV (YNd1)(2025-Yn).xlsx
XLSX • 52.7 KB
107 - 80MVA 132-88-22kV (YNa0d1)(2026).xlsx
XLSX • 56.6 KB
73 - 20MVA 132-11kV (YNd1)(2025).xlsx
XLSX • 52.0 KB
6. 240-56063871 Pressure relief devices.pdf
PDF • 634.9 KB
65 - 20MVA 66-22kV (YNd1)(2025).xlsx
XLSX • 52.1 KB
42_10MVA 44-6.6kV YNd1.xlsx
XLSX • 52.5 KB
52_10MVA 132-22kV YNd1.xlsx
XLSX • 51.0 KB
112 - 160MVA 132-88-22kV (YNa0d1)(2026).xlsx
XLSX • 54.9 KB
16. Vendor Questionnaire_Transformers_Annexure G_ 1.pdf
PDF • 39.4 KB
18.Vendor Questionnaire_Transformers_Annexure G_ 3.pdf
PDF • 23.8 KB
30_5MVA 22-3_3kV YNyn0.xlsx
XLSX • 51.2 KB
88 - 40MVA 88-33kV (YNd1)(2025).xlsx
XLSX • 52.1 KB
104 - 80MVA 88-44-22kV (YNa0d1)(2026).xlsx
XLSX • 56.5 KB
79 - 20MVA 132-66-22kV (YNa0d1).xlsx
XLSX • 54.9 KB
62 - 20MVA 44-11kV (YNd1)(2025).xlsx
XLSX • 52.6 KB
7. NEC3 ECC PreQual Class1 Power Trfr 5yr.docx
DOCX • 137.0 KB
86 - 40MVA 88-11kV (YNd1)(2025)(High Z).xlsx
XLSX • 52.1 KB
46_10MVA 88-11kV YNd1.xlsx
XLSX • 51.6 KB
95 - 40MVA 132-88-22kV (YNa0d1)(2025)).xlsx
XLSX • 54.8 KB
5_2.5MVA, 22-11kV DYN11.xlsx
XLSX • 50.9 KB
91 - 40MVA 132-11kV (YNd1)(2025).xlsx
XLSX • 52.0 KB
7_2.5MVA, 22-2.2kV Yd9.xlsx
XLSX • 51.7 KB
83 - 20MVA 132-33kV (YNd1)(2025)2.xlsx
XLSX • 52.0 KB
20_5MVA 33-22kV YNyn0.xlsx
XLSX • 50.8 KB
105 - 80MVA 132-44-22kV (YNa0d1)(2026).xlsx
XLSX • 56.5 KB
25_5MVA 66-11kV YNd1.xlsx
XLSX • 51.2 KB
51_10MVA 132-11kV YNd1.xlsx
XLSX • 51.0 KB
50_10MVA 132-6.6kV YNd1.xlsx
XLSX • 51.9 KB
77 - 20MVA 132-6.6kV (YNd1)(2025)2.xlsx
XLSX • 52.0 KB
36_10MVA 22-11kV YNyn0.xlsx
XLSX • 50.9 KB
1. SDLI Strategy Doc_ BIDDERS TEMPLATE _Class 1 Power Transformers.pdf
PDF • 325.6 KB
68 - 20MVA 88-33kV (YNd1)(2025).xlsx
XLSX • 52.0 KB
4. 240-56063843 Analogue oil and winding temperature indicators.pdf
PDF • 354.5 KB
47_10MVA 88-22kV YNd1.xlsx
XLSX • 51.6 KB
14_2.5MVA, 44-6.6kV YNd1.xlsx
XLSX • 51.6 KB
2. Annexure G2.pdf
PDF • 16.1 KB
39_10MVA 33-6.6kV YNyn0.xlsx
XLSX • 50.8 KB
63 - 20MVA 44-22kV (YNd1)(2025).xlsx
XLSX • 52.1 KB
27_5MVA 88-6_6kV YNd1.xlsx
XLSX • 51.1 KB
26_5MVA 66-22kV YNd1.xlsx
XLSX • 51.1 KB
41_10MVA 44-22kV YNd1.xlsx
XLSX • 51.2 KB
109 - 80MVA 132-44kV (YNd1)(2026).xlsx
XLSX • 64.0 KB
35_5MVA 66-22kV YNd1.xlsx
XLSX • 51.2 KB
12_2.5MVA, 88-2.2kV YNd1.xlsx
XLSX • 51.2 KB
15. 240-171000616_Technical Evaluation Criteria for Dx trfrs final.pdf
PDF • 1160.7 KB
101 - 45MVA 132-22kV (YNd1)(2026).xlsx
XLSX • 51.8 KB
1. Invitation to Tender (ITT)_Class 1 Power Transformers.docx
DOCX • 253.2 KB
10_2.5MVA, 33-22kV YNyn0.xlsx
XLSX • 50.8 KB
29_5MVA 22-2_2kV YNyn0.xlsx
XLSX • 50.3 KB
2. Eskom_Standard_Conditions_of_Tender.pdf
PDF • 626.7 KB
1_1.25MVA, 22-11kV YNyn0.xlsx
XLSX • 52.2 KB
1. ST_240-68973110 Rev 3 Power Transformer Standard Specification.pdf
PDF • 2458.4 KB
45_10MVA 66-11kV YNd1.xlsx
XLSX • 51.2 KB
1. Environmental Requirements_Dx Class 1 Power Transformers.docx
DOCX • 83.3 KB
1. Invitation to Tender (ITT)_Class 1 Power Transformers.pdf
PDF • 1007.2 KB
99 - 40MVA 88-6_6kV (YNd1)(2025).xlsx
XLSX • 52.1 KB
60 - 20MVA 33-11kV (YNyn0)(2025).xlsx
XLSX • 52.0 KB
82 - 20MVA 66-11kV (YNd1)(2025).xlsx
XLSX • 52.1 KB
37_10MVA 33-11kV YNyn0.xlsx
XLSX • 54.1 KB
3. Baseline Risk Assessmnet_2025 (002).pdf
PDF • 35.1 KB
17_5MVA 22-11kV YNyn0.xlsx
XLSX • 50.8 KB
43_10MVA 66-6.6kV YNd1.xlsx
XLSX • 51.4 KB
34_5MVA 66-3.3kV YNd1.xlsx
XLSX • 51.2 KB
4.240-109253698 CQP Template.docx
DOCX • 99.2 KB
76 - 20MVA 132-6.6kV (YNd1)(2025)(High Z)2.xlsx
XLSX • 52.0 KB
53_10MVA 132-33kV YNd1.xlsx
XLSX • 51.0 KB
85 - 40MVA 88-11kV (YNd1)(2025).xlsx
XLSX • 52.1 KB
6_2.5MVA, 22-11kV YNyn0.xlsx
XLSX • 50.9 KB
11. 240-75661431 Rev 3 _STANDARD FOR MINERAL INSULATING OILS.pdf
PDF • 1384.6 KB
113 - 160MVA 132-33kV (YNd1)(2026).xlsx
XLSX • 51.8 KB
7. 240-56063908 OIl and gas actuated relays (buchholz).pdf
PDF • 213.6 KB
2_1.25MVA, 22-11kV Dyn11.xlsx
XLSX • 50.9 KB
66 - 20MVA 88-11kV (YNd1)(2025).xlsx
XLSX • 52.0 KB
4. Supplier Declaration of Interest.pdf
PDF • 107.5 KB
97 - 40MVA 66-11kV (YNd1)(2025-Yn)(Hi).xlsx
XLSX • 52.1 KB
1. SDLI Strategy Doc_ BIDDERS TEMPLATE _Class 1 Power Transformers.docx
DOCX • 104.5 KB
13_2.5MVA, 88-2.2kV Yd9.xlsx
XLSX • 52.0 KB
3. Non-Disclosure Agreement (NDA) Vendors.docx
DOCX • 93.8 KB
1. 32-726-03T High Risk OHS Specification_.pdf
PDF • 439.6 KB
17. Vendor Questionnaire_Transformers_Annexure G_ 2.pdf
PDF • 102.7 KB
12. Passive Dehydrating Breathers 240-56062529.pdf
PDF • 472.9 KB
3. 240-109253302 _ Quality Control Plan or Inspection Test Plan (QCP or ITP) rev 2.docx
DOCX • 171.0 KB
94 - 40MVA 132-66-22kV (YNa0d1)(2025)).xlsx
XLSX • 54.9 KB
6. TEAP_ST_240_170001064.pdf
PDF • 356.6 KB
14. _240-56062799_Bushings Technical Specification_Rev 4.pdf
PDF • 676.9 KB
4. OHS Tender Evaluation Requirements _Transformers 2025.pdf
PDF • 155.0 KB
92 - 40MVA 132-22kV (YNd1)(2025).xlsx
XLSX • 52.0 KB
23_5MVA 44-3.3kV YNd1.xlsx
XLSX • 51.2 KB
1. Environmental Requirements_Dx Class 1 Power Transformers.pdf
PDF • 198.9 KB
61- 20MVA 44-6.6kV (YNd1)(2025).xlsx
XLSX • 52.2 KB
48_10MVA 88-3.3kV YNd1.xlsx
XLSX • 51.0 KB
3. 240-56062720 Oil sampling points labels.pdf
PDF • 166.9 KB
9. 240-56356202 Bag leak detector.pdf
PDF • 454.9 KB
108 - 80MVA 88-33kV (YNd1)(2026).xlsx
XLSX • 54.2 KB
19_5MVA 33-11kV YNyn0.xlsx
XLSX • 50.8 KB
4_1.25MVA, 22-6.6kV, YNyn0.xlsx
XLSX • 52.2 KB
84- 40MVA 66-22kV (YNd1)(2025).xlsx
XLSX • 52.1 KB
102 - 80MVA 132-44-11kV (YNa0d1) (2026).xlsx
XLSX • 63.1 KB
4. Annexure G4.pdf
PDF • 15.2 KB
Clarification Meeting_Meeting Minutes_26 August 2026_.pdf
PDF • 312.0 KB
1. E3324DXECOU_ Clarification Questions and Answers No1.pdf
PDF • 251.7 KB
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