Ring-main distribution switchgear LS Industrial Systems

Tri-MEC Ring Main Units are mainly used for power distribution of 11/15kV class underground line and designed to enable connection, supply and protection by HRC power fuse combination. The units are three-way combined single panels comprising incoming/outgoing feeder panels and fused protection LBS panels that protect transformers.

Technology
-Metal enclosed unit for Indoor installation and type tested.
-Insulated by SF6 Gas.
-Maintenance free and easy installation.
-Independent of climate.
-ON-OFF-Earth, three position load break switch.
-Variable cable connections - Premolded elbow boot or Heat shrinkable tube.
-Recyclable materials used.

Safety
-Approachable and operable safely in the presence of power in the cables.
-Clear indication of operation status via mimic diagram on front panel.
-Fully automatic interlocking system.
- Operation is only possible in case door is totally closed.
- Fuse compartment is only accessible when Load break switch is earthed.
-Voltage detector to check whether cables are lined or not.
-Rupture disk is designed to protect devices in case of emergency gas expansion.
-Internal arc tested for the operator safety in case of accident current occur.
(21kA/1s, without SF6 Gas)