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Recent content by Schmoleskin

  1. Schmoleskin

    Pouring footers for beam supports with minor standing water

    Greetings, I am usually in the electrical area, but not today... I am replacing some of the bearing wall in our basement with a steel beam that has two poured footers for support. I got a design from a structural engineer, but he is out of town this week as we prepare to pour the beam support...
  2. Schmoleskin

    CAN over T1

    Trying something new, in Yellowstone Park. The park has a few generators here and there, but are finally installing a T1 line between a couple of sites. This should allow them to have the capability to loadshare in isochronous mode during utility outages, between distant units, as their load...
  3. Schmoleskin

    CAN comms between two wire and three wire devices

    We are connecting two generator controllers (Woodward EasyGen 3400s) to a utility breaker controller (Woodward LS-511-5/P1). We can get the two generator controllers to recognize one another over the CAN network, but neither can see the LS-5. One difference between these devices is that the LS-5...
  4. Schmoleskin

    Loss of Utility Protection

    A quote from an email I recently saw, "The load on this feeder may at some times be less than the capacity of the generator." The utility is requiring this cogen provider to supply an SEL 700G protective relay. Can anyone help me understand how it's possible to sense loss of utility if the...
  5. Schmoleskin

    Area Classification

    I believe what determines the classification of an area is the presence of flammable vapor, dust, etc. If a partition or fire wall can cause an area to no longer contain such vapor, etc., then I don't see why it would need to remain a classified location. I'm thinking of automotive service...
  6. Schmoleskin

    Excitation, Torque and Volts/Hz

    Thanks all, wasn't expecting so much good info so fast. DJO
  7. Schmoleskin

    Excitation, Torque and Volts/Hz

    How much effect does changing synchronous generator excitiation have on the mechanical load that the prime mover sees? Is it the same as KVA is to KW and KVAR, in the imaginary axis? I know that PSS uses this concept, but don't quite understand the relationship. Have been working with a CAT...
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