| 摘要 |
The present invention relates to a method and a device for distribution of cooling air to switchgear cubicles. The invention comprises distributing cooling air or other cooled gas, in a series of closely arranged switchgear cubicles (1a-1d) which are closed to the surrounding air, in the cubicles along the same path as that along which the current is distributed through and into the cubicles. This is accomplished by distributing air or gas to the respective cubicles (1a-1d) in the series of cubicles via channels (5, 6a-6d) in the form of protective channels or busbar boxes which constitute semiprotection for the single-phase or multi-phase busbar lanes (4a-4d) which distribute electric current to the cubicles and to electric equipment present in the cubicles. The direction of the cooling gas distribution is the same as the current direction or the reversed. |
