SF6 Insulated Indoor Ring Main Unit

FEATURES
  • SF6 insulated compact switchgear
  • Equipped with SF6 switch disconnector
  • Equipped with vacuum circuit breaker
  • Developed according to international standard IEC 62271-200
  • Resistant to environmental conditions
  • Modular or compact versions
  • Internal arc resistant
  • SCADA compatible motorised unit, on request
  • Stainless steel tank
  • With Canopy / Enclosure for outdoor use

Electrical Data

Rated voltage: 12 / 17.5 / 24 kV

Insulation level

Lightning impulse (1.2/50 µs) : 75 / 95 / 125 kV peak
Power frequency (50 Hz/1 min) : 28 / 38 / 50 kV rms
Rated current : 630 A
Rated short-time current : 21 (3s) / 16 (3s) kA rms
Short circuit making current : 52.5 / 40 kA peak

Mechanical characteristics

Protection degree : Mechanism – IP2X
Cable Compartment – IP3X
Tank – IP67
Canopy / Enclosure – IP54
Standard colour : RMU – RAL – 7035

Canopy / Enclosure – RAL 7012

Normal service conditions

Ambient temperature : basic:-5..+40 °C , options:-10.. +55 °C

Dimensions (2LBS+1CB)

Height : 1470 mm
Width : 1190 mm
Depth : 727 mm