Bank of 3 single phase phase-shifting transformer 380 kV, 1000 MVA
The scope consists of the supply, assembly and delivery in working order of a bank of 3 single phase phase-shifting transformer with the following main characteristics:
3 single ph. PST-units (i.e. series- and exciting unit in one tank);
Symmetrical type (i.e. the 380 kV Source line terminal and the 380 kV Load line terminal will have same voltage in no-load condition);
Freq. 50Hz;
Rated throughput power Sr of the 3 ph. PST-bank 1000 MVA;
Continuous overload ability of the 3 ph. PST-bank 1200 MVA;
Rated voltage Ur 380 kV;
Maximum operating voltage Umax 420 kV;
Insulation level of 380 kV line terminals IVPD / LTAC / LIFW[CW] / SI: 570(/√3)/570/1300[1430]/1050 kV;
Tap range +16/-16 steps;
No-load angle +37.2º/-37.2º (i .e. > |37.2º| -0º);
Imp. in 3 ph. bank config. at Sr 1000 MVA and Ur 380 kV;
Outermost tap positions (+16/-16) 10.7 %;
Middle (neutral) tap position 7.0 %;
Cooling ONAN (1200 MVA) option ONAN/ONAF (700/1200 MVA);
Temp. Rise Test to be performed at 100 % and 120 % of rated current.
Deadline
De termijn voor de ontvangst van de offertes was 2017-08-21.
De aanbesteding werd gepubliceerd op 2017-07-12.
Wie?
Wat?
Waar?
Aankoopgeschiedenis
| Datum |
Document |
| 2017-07-12
|
Aankondiging van een opdracht
|