Ventilation system for arc-resistant switchgear enclosure

Details Ventilation system for arc-resistant switchgear enclosure Ventilation system for arc-resistant switchgear enclosure

H - Electricity

02

B

H02B 13/045 (2006.01) H02B 1/56 (2006.01) H02B 13/025 (2006.01)

Patent

CA 2187005

An improved arc-resistant switchgear enclosure is disclosed. In preferred embodiments, an internal arc chamber is formed by assembling modules and creating a void within the center of the switchgear enclosure. As multiple compartments or modules for a switchgear enclosure are connected, an arc chamber is created within the enclosure. Upon initiation of an arc fault within a particular compartment, a relief flap or cover for that particular compartment opens to channel the pressure and the gases into the internal arc chamber or directly through the top of the enclosure. Pressure and gases vented into the internal are chamber flow horizontally through the arc chamber until a path to the top of the switchgear enclosure is reached. These, pressures and hot gases are then channeled upward and safely out of the switchgear enclosure.

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