Solid Isolated Vacuum Ring Main Unit

11KV Vacuum Ring Main UnitSalient FeaturesEmbedded vacuum interruptor ensures safety of operatorLong electrical and mechanical lifeFully extensibleOperating mechanism with mechanical interloacks with earth switchFacilities for padlocks on all switching functionsPhase indications and Fault passage indicationsInternal arc protectionConfirms to Indian Electricity Regulations & as per IEC 62271-100Compatible for remote & SCADA operationsApplicationSecondary Ring Main Distribution systemRemote substationsIndustrial DistributionWind mill power plantsCommercial & Infrastructural EstablishmentAccessories/OptionalNumerical relay for protection with CTCable Jointing KitsMotorized MechanismTechnical Specifications Details Unit Parameters Type - 11 kV Rated Voltage kV 12 Rated current tee off /switch Amps 400/630 Rated Frequency Hz 50 Rated Short Circuit Breaking Current (Main circuit) kA 20 Rated Short Circuit Making Current (Main circuit) kA 50 Rated Short Circuit making current (Earthing switch) kA 50 Rated duration of short circuit(Main circuit) Seconds 3 Rated duration of short circuit(Earthing switch) Seconds 2 Rated Power frequency withstand voltage kV 28 Impluse withstand voltage kV peak 75 Mechanical endurance of load breaking switch Cycles 10,000 Relevant standard - IEC 62271-100 Dimensions mm As per G.A Drawing