TenneT requires power transformers and shunt reactors for its high voltage infrastructure in The Netherlands and Germany. The qualification system in Negometrix lists the following 13 standardised types.
1). <= 220 kV Powertransformer
Type: 220/110/50 kV, 370 MVA
2). Powertransformer
Type: 380/220/50 kV, 750 MVA Autotransformer
3). Powertransformer
Type: 380/150/50 kV, 500 MVA
4). Powertransformer
Type: 380/110/20 kV, 370 MVA
5). Powertransformer
Type: 400/230/30 kV, 450 MVA Autotransformer
6). Powertransformer
Type: 400/120/30 kV, 300 MVA
7). <=220 kV Powertransformer
Type: 230/115/21 kV, 200 MVA
8). <=72,5 kV Shunt reactors:
Type: 20 kV, 75 MVAr
9).<=72,5 kV Shunt reactors:
Type: 50 kV, 75 MVAr
10).<=72,5 kV Shunt reactors:
Type: 50 kV, 100 MVAr
11). above 72,5 kV till 420 kV Shunt reactors:
Type: 380 kV, 150 MVAr
12). above 72,5 kV till 420 kV Shunt reactors:
Type: 420 kV, 120 MVAr
13). above 72,5 kV till 420kV Shunt reactors with tap changer:
Type: 420 kV, 120/60 MVAr incl. off load tap changer
This Qualification System is introduced to qualify candidates for future tenders of the inquired product in the next years for both TenneT TSO B.V in The Netherlands and TenneT TSO GmbH in Germany. If TenneT requires power transformers and/or shunt reactors of other types than the listed above 13 standardised types (also called 'Specials'), only the pool of qualified suppliers resulted from this Qualification System will be invited to the tender of "Specials". For more details please access Negometrix as described in III.1.1.