High Voltage Switchgear Ring Main Unit
Description

NEPEAN Power RMU’s offer a unique and customisable solution for medium and high voltage applications. The RMU’s are gas insulated, with MV components contained within a stainless-steel tank.

  • Standard switchgear options include:
  • Load Brake Switch (LBS)
  • Circuit breaker (VCB)
  • Fuse/s and busbar

This equipment is suitable for rated frequency 50/60Hz and rated voltage 12kV distribution networks. It is designed for use in the following applications, but not limited to:

  • compact secondary substations
  • Small industries
  • Wind power plants
  • Hotels
  • Shopping and business centres • Office buildings
  • Airports
  • Hospitals
  • Underground railways

NEPEAN Power RMU’s are type tested to IEC 62271- 201 and IEC62271-304 ensure a compliant solution to your MV distribution needs.

Features
  • Rated voltage (12kV)
  • Rated frequency (50Hz)
  • Rated current (LBS/ Combination Apparatus)(630/100A)
  • 1min P.F withstand voltage (Phase to phase, phase to earth) (42kV)
  • 1min P.F withstand voltage (Disconnect gap)(49kV)

Working Conditions

  • Ambient temperature:-40°C ~ +45 °C (average temperature ≤ 35°C)
  • Altitude: ≤3000m
  • Humidity: Daily average ≤95%, daily average water vapor pressure ≤2,2KPa, monthly average ~90%, monthly average water vapor pressure ≤1.8KPa
  • The electromagnetic interference value in the second system will not exceed 1.6kY.