Metal encapsulated switchgear is described in which sulphur hexafluoride gas is used as the insulation medium in the overhead rail system with T-junction convections to a working floor level control section with vacuum-switch operating units. below the floor level are the cable ducts with horizontal cables bending round through 90 to a vertical section beneath each vacuum operated switch. The continuous rating of the installation is at 2.5 kA at 40 C with overload conditions at 110% at 30 C and underload 80% at 50 C. Three dimensional sectioned photographs and a vertical plane section drawing are included.
A safety contact switchgear installation with vacuum switches
Eine Sicherheitskontakt-Schaltgeraeteinstallation mit Vakuumschaltern
Titel niederlaendisch
Polytechnisch Tijdschrift. Editie Elektrotechnick, Electronica ; 36 , 11 ; 587-589
1981
3 Seiten, 6 Quellen
Aufsatz (Zeitschrift)
Niederländisch
Increasing safety with Premset switchgear
Online Contents | 2016
Tool for on-site installation of metal-enclosed switchgear
Europäisches Patentamt | 2023
|Multi-function safety manhole cover switchgear with chain block
Europäisches Patentamt | 2021
|Departments - SWITCHGEAR - Light-Duty Switchgear From ASCO
Online Contents | 2000