Schaltanlage mit Luftkanal

Details

Veröffentlichungs-Nr.

EP4712279

Anmeldetag

13. September 2024

Veröffentlichung

18. März 2026

Rechtsraum

EP

IPC

H02B1/56, H02B13/025(KINGSTON MURRAY PETER et al.)

Abstract

The present invention relates to a switchgear (10) comprising a housing (14) in which switchgear components are arranged and an air duct (18) which is arranged on the housing (14) for ventilation and discharging arc gas of an internal arc event. The air duct (18) comprising at least one first opening (22), which fluidly connects an internal of the switchgear housing (14) with the air duct (18) and a second opening (26) for discharging the arc gas from the air duct (18) to an outer environment of a building. The air duct (18) comprises at least one ventilation opening (34) for cooling the internal of the housing (14) during normal operation. Between the first opening (22) and the ventilation opening (34) at least one pressure movable element (38) is arranged, which is movable due to the pressure of the arc gas from a normal operation position, in which the first opening (22) is connected with the ventilation opening (34), to a fault position, in which position a connection between the ventilation opening (34) and the first opening (22) is blocked by the movable element (38). The air duct (18) comprises a cover (30) provided on the second opening (36) blocking air flow during normal operation of the switchgear (10) and opens due to the pressure of the arc gas.

Anmelder

Firma

ABB SCHWEIZ AG

Land

🇨🇭 Schweiz