Tender Details

  Published



30


RFQ/DML/1103


Single Lot


Request For Quotation Method


Goods


Zimbabwe PPDPA Act Rules


Internally generated funds


Dorowa


Electrical Products: Cables and Materials, Power Back-Up Equipment, Transformers, Standby Generators, Consumables & Accessories


3 Month(s)


DOROWA MINERALS LIMITED


11-Mar-2026 02:36 PM

DOROWA MINERALS LIMITED

number 1 Dorowa , Dorowa Minerals

Buhera, Manicaland , Zimbabwe EMEA


Transformer Service

Project Name:
Transformer Service
Description:

Transformer service

3.1 Transformer Oil Regeneration and Filtration

• Drain existing transformer oil into filtration unit. Conduct moisture content and dielectric strength tests before filtration.

• Recondition oil to achieve minimum dielectric strength of ≥ 60 kV (BDV test).

• Top up oil to correct levels and record all test results before and after filtration.

3.2 Silica Gel Replacement

• Inspect the breather assembly. Replace moisture-saturated silica gel crystals with new blue-indicating type. Clean and reseal breather to prevent air ingress.

3.3 Transformer Electrical Tests

• Perform the following tests in accordance with IEC 60076 and IEEE Std C57.12.90:Insulation Resistance, Polarization Index, Transformer Turns Ratio, Winding Resistance, Oil BDV Test, Visual Inspection, and Temperature/Fan Control Test.

Line Item Details
Item No. UNSPSC Lot Name Lot Description Quantity Unit of Measure
1 41113663 Transformer tester Transformer service • Transformer Oil Regeneration and Filtration • Silica Gel Replacement •Transformer Electrical Tests 1 Each
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