NEN - NPR 11639
Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages of 72,5 kV and above
active, Most Current
| Organization: | NEN |
| Publication Date: | 1 February 1997 |
| Status: | active |
| Page Count: | 46 |
| ICS Code (High voltage switchgear and controlgear): | 29.130.10 |
scope:
Is applicable to the single-phase connection assemblies between gasinsulated metal-enclosed switchgear for rated voltages of 72,5 kV and above satisfying the requirements of IEC 517 and power transformers satisfying the requirements of IEC 76 and fitted with completely immersed bushings satisfying the requirements of IEC 137, one end of which is i mmersed in the transformer oil, and the other end in the insulating gas of the swithgear. Its purpose is to establish electrical and mechanical interchangeability in the interface arrangement of these connection assemblies, and to determine the limits of supply.
Document History
NPR 11639
February 1, 1997
Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages of 72,5 kV and above
Is applicable to the single-phase connection assemblies between gasinsulated metal-enclosed switchgear for rated voltages of 72,5 kV and above satisfying the requirements of IEC 517 and power...