Supply and Delivery of Excitation Transformer Tender, Zimbabwe - 60743684

Procurement Summary

Country : Zimbabwe

Summary : Supply and Delivery of Excitation Transformer

Deadline : 11 Jan 2022

Other Information

Notice Type : Tender

TOT Ref.No.: 60743684

Document Ref. No. : ZPC/HO DOM 156/2021

Competition : ICB

Financier : Self Financed

Purchaser Ownership : -

Tender Value : Refer Document

Purchaser's Detail

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Tender Details

Tenders are invited for Supply and Delivery of Excitation Transformer at Zpc Kariba South Power Station

1 Technical particulars —L
2 Description of Transformer “ Excitation Transformer Three phase Dry type
3.1 Continuous maximum rating (cmr) corresponding to full power tappings when operating under site conditions. KVA 1349
3.2 HV terminal rating Delta kV J*
3.3 LV terminal rating Delta kV 0.735
4 Phase connections: 1EC vector group symbols DdO
f Impedance % 8 ±tolerances
6 Rated frequency Hz 50±4%
7 System highest Voltage kV 25.2kV at 50Hz for 5 sec
System Voltage Range kV 17.1 kV — 18.9kV
8 Insulation level
8.1 a) 1IV winding 50kV, 50Hz, 60 seconds
8.2 b) LV winding 4kV, 50Hz. 60 seconds
8.3 Impulse Levels
8.3.1 a) HV winding 95kV
b) LV winding N/A
9 Overload I805A (rms) for 30 minutes.
Overvoltage/ Over-fluxing, 1 140%, 50Hz for 5 1 seconds
110% continuous' at frequencies 47.5 - 51Hz
System frequency range Hz 47.5 - 52.5
!0 Degree of protection . n IP3I
11 Efficiency at normal ratio, unit power factor Supplier to guarantee the value
12 Temperature class °c 155
13 Insulation class F
14 Partial discharge pc 6 Cables
26.1 a) 1IV terminations
26.1.1 i. Entry 1 Top Entry
26.1.2 ii. Terminals 3 pole. 6 gland air insulated cable terminations with non-magnctic uland plate.

Documents

 Tender Notice