‘POWER TRANSFORMERS’ PACKAGE
FOR
TANDA THERMAL POWER PROJECT, STAGE-II (2 x 660 MW)
BIDDING DOCUMENT NO. : CS-9562-501-2
Salient Technical Features of the Equipments/ Systems/ Services covered in NIT/IFB No. 40030953 dated 10.12.2014 are mentioned below.
These Salient Technical Features are mentioned only to facilitate the prospective Bidders to prima-facie understand the requirements under the tender and shall not in any way limit or alter the Scope of Work and Technical Features/ Specification of Equipments/ Systems/ Services covered in the Bidding Documents. Detailed provisions in regard of Scope of Work and Technical Features/ Specification of Equipments/ Systems/ Services, contained in the Bidding Document shall be final and binding.
SALIENT TECHNICAL FEATURES
‘Power Transformers Package’ covers design, engineering, manufacture, supply, testing at works, short circuit testing, transportation to site, in plant transportation, receipt, handling and storage at site, erection and commissioning of various Transformers & Reactors and inclusive of necessary tools and tackles and supply of mandatory spares & Maintenance equipment and 5% extra transformer oil.
The bill of material is following:-
Sr. No. |
Equipment Name |
Rating |
Quantity |
1. |
Generator Transformers (GT) |
260 MVA, 22/420/v3kV, 1-phase with OCTC |
07 Nos. |
2. |
Station Transformer (ST) |
110/55/55 MVA, 400/11.5/11.5 kV, 3- phase with OLTC |
02 No. |
3. |
Unit Transformer (UT) |
35 MVA, 22/11.5kV, 3-phase with OLTC |
04 Nos. |
4. |
Inter Connecting Transformer (ICT) |
315 MVA, 400/220/33 kV, 3-phase with OLTC |
02 Nos. |
5. |
Reactor |
125 MVAr, 3-ph., 420kV Class |
01 No. |
6. |
Measuring Equipment |
||
a. On Line DGA Analyzer |
Online monitoring system of dissolved gases for GT’s. and ICT’s |
09 Nos. |
|
b. On Line Moisture Removal System |
One for 3-phase GT Bank |
02 set |
|
c. Oil BDV Measurement kit. |
Automatic oil testing unit for checking BDV of transformer oil upto 80kV. |
1 No. |
|
d. Dielectric Response Analyzer |
1 No. |
||
e. Oil tan delta and resistivity measurement kit. |
Suitable for measurement of Volume resistivity, Di- electric constant, Watt loss, loss factor with elevated temperature read out for transformer oil. |
1 No. |
|
f. Dew point measurement instrument |
1 No. |
||
g. FRA test kit |
1 No. |
||
h. Capacitance & tan delta measuring equipment (with cables etc.) |
0-10kV (fully automatic) |
1 No. |
|
i. Transformer turns ratio (TTR) kit |
Display of ratio & phase angle deviation. |
1 No. |
|
j. Winding resistance measurement kit |
1 No. |
||
k. Off line laboratory model Oil DGA kit |
1 No. |
||
7. |
Oil Purifying Equipment |
10,000 Litres / hr. |
1 No. |
8. |
Oil Purifying Equipment |
1,000 Litres / hr. |
1 No. |
9. |
Vacuum pump with motor |
Free air displacement of 3040L/min, Ultimate pressure of 0.7PA & Blank off vacuum of 0.01torr. |
1 No. |
10. |
Hydraulic jacking system (includes minimum four jacks, hydraulic system and associated piping etc.) |
Suitable for lifting/wheel rotation for Heaviest oil filled Transformer in scope. |
1 No. |
11. |
Oil tanker, wheel mounted, |
10kL Capacity |
5 Nos. |
5kL Capacity |
5 Nos. |
||
12. |
NGR |
11KV, 600A FOR 10SEC. |
8 Nos. |
13. |
Spare Trans. Oil (by vol.) |
As specified |
5% |
14. |
Mandatory Spares |
As specified |
LOT |