Medium-voltage switch disconnector FLaV 25-2000-16 series

single-pole2-poleAC

The 1-pole and 2-pole outdoor switch-disconnectors, types FLaV 25-2000-16-1B and -2B, are innovations developed specifically for the railway sector. Compared with the FLa 15/97-1B type, they offer increased short-circuit withstand capability. For this to be realised, it was necessary to provide the switching device with additional pre-arcing electrodes. Because of its modified functional characteristics, the switch-disconnector switch is capable of switching not only its rated making current of In 2000 A but also a short-circuit current of Ima 40 kA. Load-breaking operations continue to be carried out by a vacuum tube integrated into the switchgear cabinet. The silicone composite insulators, with a minimum creepage path of 1420 mm, may be regarded as another significant innovation. This will ensure the use of the switchgear even in extremely adverse atmospheric conditions. These outdoor switch-disconnectors, types FLaV 25-2000-16-1B and -2B, have been designed for a rated voltage of 25 kV and a rated current of 2000 A, and meet the applicable requirements in accordance with EN 50152-2.