Recent Content by Mark Cat

  1. Mark Cat
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    Ecodream, an optimized motor boat

    On a 20 ft. tender design, not being an NA, I asked a lot of questions (dumb) about the proposed transition from displacement to planning in...
    Post by: Mark Cat, Jul 18, 2013 in forum: Boat Design
  2. Mark Cat
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    Using Thermal Imaging and Some Recent Findings...

    SuenosAzules, Hi, what model thermal imaging camera did you use from FLIR? Thanks, Mark Cat
    Post by: Mark Cat, Jul 13, 2013 in forum: All Things Boats & Boating
  3. Mark Cat
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    Advice on Keel Cooling set up

    The system as proposed would not be that difficult to test for heat transfer before installation. The internal tube mixing devices are called...
    Post by: Mark Cat, Jul 13, 2013 in forum: Metal Boat Building
  4. Mark Cat
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    Chinese Teak

    Bert, for a production boat, all DC LED lights are tested on the bench for acceptance (spectral output, interior design team mockup test), power...
    Post by: Mark Cat, Jul 10, 2013 in forum: OnBoard Electronics & Controls
  5. Mark Cat
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    Chinese Teak

    In regards to the power distribution for a larger vessel like yours, the trend I see to loads and power are as follows: 1) For safety with...
    Post by: Mark Cat, Jul 9, 2013 in forum: OnBoard Electronics & Controls
  6. Mark Cat
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    Galvanic isolator and ELCI precedence

    In production designs where there is liability: The shore power approach should address all of the failure modes at the pedestal even if an ISO...
    Post by: Mark Cat, Jul 4, 2013 in forum: Electrical Systems
  7. Mark Cat
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    automatic shutdown circuit for reversed polarity shore power hookup?

    Per ABYC shore power connect / disconnect must follow the shore power warning label located at the vessel power inlet. The same procedure is...
    Post by: Mark Cat, Jun 30, 2013 in forum: OnBoard Electronics & Controls
  8. Mark Cat
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    Chinese Teak

    It is best to talk to the battery manufacturer about the proposed series and parallel connection in regards to power take offs, cross connect,...
    Post by: Mark Cat, Jun 29, 2013 in forum: OnBoard Electronics & Controls
  9. Mark Cat
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    Chinese Teak

    For a 1200Ah house bank I usually discuss the planned layout with the battery manufacturer support engineer. Charging, battery box design, etc....
    Post by: Mark Cat, Jun 28, 2013 in forum: OnBoard Electronics & Controls
  10. Mark Cat
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    Feedback on John Holtrop design for circumnavigation

    Would it be possible to summarize your sailboat circumnavigation Cat requirements? In relation to the design presented, I cannot comment on the...
    Post by: Mark Cat, Jun 24, 2013 in forum: Multihulls
  11. Mark Cat
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    automatic shutdown circuit for reversed polarity shore power hookup?

    Yes, this is what I suggest. With the addition of: corrosion and failure to bond. Best regards, Mark Cat
    Post by: Mark Cat, Jun 23, 2013 in forum: OnBoard Electronics & Controls
  12. Mark Cat
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    automatic shutdown circuit for reversed polarity shore power hookup?

    In the approach to shore power mis-wiring, do not exclude a high resistance or open grounding (green) conductor. Mark Cat
    Post by: Mark Cat, Jun 23, 2013 in forum: OnBoard Electronics & Controls
  13. Mark Cat
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    What is best marine Air conditioner brand?

    Not sure if I can add more than what has already been said. Mabruteam provided a good summation for R-410A Options. For new designs, yachts...
    Post by: Mark Cat, Jun 23, 2013 in forum: Boat Design
  14. Mark Cat
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    automatic shutdown circuit for reversed polarity shore power hookup?

    I use isolation transformers on shore power input, so single phase 120 VAC reverse polarity is not a problem. However, if polarity is reversed,...
    Post by: Mark Cat, Jun 23, 2013 in forum: OnBoard Electronics & Controls
  15. Mark Cat
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    explain why inverter instructions say use separate ground?

    sdowney717, Many newer inverters use an output stage + PWM/Micro that creates a representative AC sine wave, as opposed to a square wave...
    Post by: Mark Cat, Jun 21, 2013 in forum: OnBoard Electronics & Controls