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Recent content by Jonturner

  1. Jonturner

    Has anyone built 50kV SWER networks?

    We run around 600 SWER networks in Queensland, Australia with the highest delivery voltage at 19.1kV. Some of these are +400km of line length with 200kVA isolating transformers. We are working with Universities to design SWER for the future and need to know if anyone is working with a higher...
  2. Jonturner

    using single-phase transformer in distribution feeder

    In Ergon Energy, Queensland we have around 4,000km 11kV SWER, 16,000km 12.7kV and 44,000km of 19.1kV SWER. All up enough to streach 1.5 times around the world. Amoungst the SWER technologies we have unisolated, isolated, duplex and triplex operating. The isolated SWER is our prefered choice of...
  3. Jonturner

    Overhead SWER Lines

    Graeme Certainly feasable. In Ergon Energy, Queensland we have around 4,000km 11kV SWER, 16,000km 12.7kV and 44,000km of 19.1kV SWER. Some 180deg duplex operating. All this is isolated SWER with 19.1kV the perfered choice for the reasons you indicate. Australia has around 191,000km SWER I...
  4. Jonturner

    Single Wire Earth Return (Distibution Line)

    We are interested in contacting Power System Engineers and Technicians involved in the operation and augmentation of SWER systems. Ergon Energy Australia has 65,000km of SWER line with ever increasing load and maintenance issues. We are investigating new ways of improving the way we use SWER and...

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