Electro-technology company operating throughout Australia to deliver installation, maintenance and manufacturing services from inception to replacement.


Medium Voltage

Nilsen medium voltage switchboards can be built to comply with specific requirements and utilising the Nilsen proprietary board building concepts, be customised to meet demanding type testing and segregation requirements.

  • 3.3 kV, 6.6 kV, 11 kV and 24 kV switchboards
  • Type testing to 100 kA including arc fault containment AS 3439.1 appendix ZD for LV and AS 62271.200 appendix A for HV
  • Arc proofing in accordance with IEC 60298 app. AA
  • Earthquake tested to AS 1170.4 Cat 1, 2 and 3
  • Fully demountable starters and feeders to AS 3439.1 (Forms 1 to 4)
  • Separation to form 4b
  • Safe access including Class A (criteria 1 to 5)
  • Single sided, back connected, and back to back options
  • Generous busbar zones, sleeved or unsleeved busbars
  • Fixed, demountable, transportable and withdrawable switch boards and motor control centres

Case Study

GM Holden 11 kV Switchboard Modifications

Dismantling and strip down of 11Kv switchboards to allow replacement of damaged internal components.

Outline of Nilsen Scope of Works

  • Arrange and conduct switchgear specific training with overseas trainers to provide a dedicated highly skilled team suiting customer requirements.
  • Dismantle existing switchboards and switches down to basic frame to allow specific component replacement.
  • Arrange and coordinate subcontractors to ensure fluent implementation of project.
  • Development of a hour by hour project plans.
  • Create detailed commissioning plans for pre-works and post works commissioning.

Specific Project Obstacles to Overcome

  • Works occurring over 24/7 being extremely time critical so vehicle production id not interrupted.
  • Switchboards are located on platforms that have very little access.
  • Development of timing plans that ensure every hour of the work is used effectively.

Nilsen Innovations

  • Review and further refinement of the works program to reduce customer outages.

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