EKOS

36kV GIS Switchgear

A Ring Main Unit (RMU) is a totally sealed, gas-insulated (SF6 filled) compact switchgear unit. Available in compact and modular type.

Used in
GenerationSubstationEnd-Users / Consumers
Applications
MV Switchgear

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Download datasheet (PDF, 1.6 MB)

Key specifications

Rated voltage36 kV (38.5 kV on request); compact RMU also 12 / 24 kV
Rated current630 A switchgear; busbar 1250 A (modular) / 630 A (compact RMU)
Rated short-time current16 kA (modular secondary GIS)
Rated frequency50 / 60 Hz
Insulation (36 kV)70 (80) kV power-frequency 1 min / 170 (180) kV impulse
Internal arcIAC AFL 16 kA 1 s at 36 kV (compact 12 kV up to 25 kA, 24 kV up to 20 kA)
IP classIP67 energized parts / IP3X switchgear
ClassificationLSC2A, PM partition metal
InsulationSF6 in Cr-Ni stainless steel tank
Functional unitsload break switch, switch-fuse, vacuum circuit breaker, cable connection, metering
StandardIEC 62271-200

From the manufacturer's datasheet. Ratings vary by model, so our engineers confirm the exact specification with your quotation.