| 摘要 |
#CMT# #/CMT# The device has sealed cabinets (2) incorporated with multiple contactors, associated electric components, and pressurized gaseous fluid e.g. nitrogen, source (3). The source is connected with a network (4) formed of a fluid gas circulation loop (5) and derivation conduit (6) to derive the fluid from the loop to the cabinets. #CMT# : #/CMT# An independent claim is also included for a process for protecting a power supply circuit by the ground. #CMT#USE : #/CMT# Device for protecting a power supply circuit of a railway transport line (claimed) e.g. tramway line. #CMT#ADVANTAGE : #/CMT# The gaseous fluid source is connected with a network formed of a fluid gas circulation loop and derivation conduit to supply the fluid to the cabinets, so that the cabinet has high pressure than the humidity atmospheric pressure, thus preventing the penetration of humid atmospheric air and the ground water to penetrate in the cabinet, avoiding the oxidation of the components and reducing the reaction of the gaseous fluid with the components, hence protecting the circuit with low cost in a reliable manner. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic view of a device comprises a network. 1 : Power supply circuit 2 : Sealed cabinet 3 : Gaseous fluid source 4 : Network 5 : Fluid gas circulation loop 6 : Derivation conduit. |
