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Eaton SF6 Gas Insulated RMU

The SF6 Gas Insulated RMU RVAC is a fully insulated, fully isolated electrical Ring Main Unit (RMU) developed for cable circuit applications. This RMU uses SF6 gas for insulation, which effectively minimizes the impact of harsh environments. With an excellent reputation, it is used in municipal electrical grids throughout China.

Core features

Safe and reliable operation

  • Uses mechanical and electrical logical interlocking mechanisms that prevent misoperation
  • Allows all operations to be carried out without opening the door for complete safety
  • Ensures zero potential at the interface with completely grounded system design
  • Avoid live operation with isolated compartment design

Flexible, fully customizable design

  • Allows for customization by using modular components as needed
  • Installs simply and conveniently with ample room for cable connection
  • Supports voltage rating of 12 or 24 kV 

Guaranteed quality and stable operation

  • Guarantees stable operation throughout its lifecycle of over 30 years with less than 1‰ annual gas leak rate
  • Has a main box protection level up to IP67 and uses shielded cable accessories to prevent flood inundation and to ensure stable operation in harsh outdoor environments
  • Complies with GB3906 and ISO9001 standards

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