33kV Gas Insulated Switchgear


The GHA is a pre-fabricated metal-enclosed construction, type tested, medium voltage, SF6 insulated switchgear suitable for indoor installations. It can be provided both as single busbar configuration and as a double busbar configuration. The switchgear’s has been designed and tested in accordance to IEC 62271-200 and has the following features:

  • Modular design
  • Low voltage cabinet is available in two heights depending on the instruments required.
  • Stable and reliable gas system
  • Compact and clear design
  • Easy access to all functional groups
  • Intelligent Gas Density Information system (IDIS)
  • No gas handling on the assembly or switchgear extension on either side
  • Reliable drive interlocking system
  • Good operator guidance due to its ergonomical industrial design.
  • Maximum protection against accidental contact thanks to a complete metal enclosure of all switchgear components.
  • Wall mounted installation.

Electrical Characteristics of the switchgear

Rated Voltage36kV
Rated Impulse170kV
Rated Frequency50Hz
Rated Short Time40kA for 3s
Peak Withstand Current100kA
Rated Current of Main busbarsUp to 2000A
Rated Current of Feeder ConnectionsUp to 2000A
Busbar ConfigurationSingle or Double

Mechanical Characteristics of the switchgear

Switching MediumVacuum
Construction of Switching MediumFixed
Mechanism of Switching MediumSpring Charged/Vacuum
Cable AccessFront
Cable EntryBottom-Front
Standard Paint FinishRAL 7035

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