RSF 12-24 SF6 Insulated RMU Compact modules |Easy installation |Reliable operation
C-module F-module V-module
Load break switch Switch fuse Vaccum circuit breaker Isolating / Earthing switch
Rated voltage (kV) 12/24 12/24 12/24 12/24
Power frequency withstand voltage (kV) 42/65 42/65 42/65 42/65
Impulse withstand voltage (kV) 75/125 75/125 75/125 75/125
Rated current (A) 630/630 Note[1] 630/630
Short circuit breaking current (kA) Note[2] 20/25
Short circuit making current (peak, kA) 63 / 52.5 Note[2] 50/40 or 63 / 50 50/40
Short time withstand current 3s (kA) 25/- 20/25 20/16
Short time withstand current 4s (kA) -/21 20/25 20/16
Mechanical life (times) Load 5000 / grounding 3000 Load 5000 / grounding 3000 10000 Isolating 3000/grounding 3000

Note: 1)It depends on the current rating of the fuse; 2) Restricted by high-voltage fuse;

RSF-12/24 series inflated switchgear shall comply with IEC62271-100, IEC62271-102, IEC62271-103, IEC62271-200, IEC62271-105, IEC62271-1, GB/T11022-1999, GB3906-2006, GB1985-2004, GB16926, GB3804-2004, GB1984-2003, GB3309-89 and other standards.

Item Parameter
Item Parameter
RSF-12-24kV series SF6 gas insulated ring main unitGenerally operate/service under normal indoor conditions, complying with IEC 60694
Ambient temperatureMaximum temperature +75℃;
Maximum temperature (24h average) +35℃;
Minimum temperature -45℃;
HumidityMaximum average relative humidity(24 hours measure≤ 95%; monthly measure ≤ 90%)
IACAFLR 20kA 1s
Service continuity categoryLSC2A
Cable bushing standardDIN47636T1 and T2/EDF HN 525-61
Altitude≤ 2000 m (under standard inflation pressure)
SF6 gas pressureLow than20 ℃, 1.4bar (absolute pressure)
Annual leakage rate0.25‰/year
Immersion test0.3bar pressure underwater 24kV 24h
Protection degreeSF6 air chamber IP67
Fuse cartridge IP67
Enclosure IP4X

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