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  1. Tony Tonon

    dc dielectric test for 33kv cable

    I think the OP said it was never energized. You can check the Acceptance Tests listed on NETA (National Electrical Testing Association.)
  2. Tony Tonon

    Isochronous load sharing lines for generators in parallel (Island system)

    Not that I am aware of. Normally this logic to control the paralleling of the gens is controlled by the ATSs
  3. Tony Tonon

    Ground-fault protection for three phase motors supplied by ungrounded delta source

    I agree with waross I had a situation while working on a train system at a major airport where the control transformers on the ground detection system burnt up. The multiple damage was discovered in (5) substations. It was found that a single car had a traction motor brush that had dislodged...
  4. Tony Tonon

    Spectrum Detroit Diesel ATS

    Not sure if this is the right place to post but maybe someone can help. I have a Spectrum transfer switch that I am trying to get a O&M manual and schematic drawings on. See attached Name/ Data Plate. Tks Spectrum Detroit Diesel Model ZCD-668341-0600 600A, 208V, 3 phase, 3 pole ser# K0652903...
  5. Tony Tonon

    THD in 20 kV side of 20/0.4 kV Transformer, 3000 kVA, Dyn-5, Year 2019

    I'm new to this forum so hope this goes thru. You may want to connect a load on the LV side and then take your measurements. Try to avoid a n0n-linear load. Open circuit (unloaded) readings of THD may be meaningless in your application.

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