Analiza przepływu gazu w kanałowych reduktorach ciśnienia podczas zwarć łukowych w rozdzielnicach SN

摘要: The following article describes the calculation method of pressure and gas temperature during fault arc inside circuit breaker compartment medium voltage switchgear. calculations were made using thermodynamic model processes, which accompany arcs air- insulated enclosed switchgears. Subsequently, based on viscous fluid mechanics, velocity distribution in relief duct was presented. Performed considered two types ducts: straight vertical duct, ensures exhaust to area located above switchgear vertical-horizontal behind effectiveness reduction for ducts compared basis average at outlet duct.(The analysis flow through MV switchgears).