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  1. Replies
    4$$
    Views
    459

    D - Curiousity Question: 220V and motor rated...

    D -
    Curiousity Question:
    220V and motor rated in "KW". Is this a European machine, possibly 50HZ. I know you didn't ask that. I'm just curious.
  2. Replies
    12$$
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    483

    It's not. 8.8kva in 6.8 kva out However, I...

    It's not.
    8.8kva in
    6.8 kva out

    However, I think most all figured that out. Really, I do.
  3. Replies
    12$$
    Views
    483

    All good suggestions. However: Maybe consider...

    All good suggestions. However:
    Maybe consider calling one's supplier and checking on the price.

    Application is 8.8kva x 1.25 = 11kva.
    2 each 15kva,
    or
    1 each 30 kva

    Make a guess at the...
  4. Thread: Transformer

    by iceworm
    Replies
    5$$
    Views
    539

    So, you are looking at 240.21.C.2 Transformer...

    So, you are looking at 240.21.C.2 Transformer Secondary Conductors, not over 10"

    If the installation qualifies under 240.21.C.3, Industrial Installation, that allows 25'

    And there is also Part...
  5. Replies
    10$$
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    723

    Yes, the weight is the issue. CU 250 .834...

    Yes, the weight is the issue.
    CU 250 .834 lbs/ft .515 ohms/1000 weight for 20 ft ~16#
    AL 350 .417 lbs/ft .605 ohms/1000 weight for 20 ft ~8#


    My current thinking is to use crimped lugs,...
  6. Replies
    10$$
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    723

    I think I'm ok on tis issue. The stuff I'm...

    I think I'm ok on tis issue. The stuff I'm looking for is copper colored on the outside of the wire.

    I don't know how easy it is, but yep

    I've heard of that. Probably seen them and didn't...
  7. Replies
    10$$
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    723

    fine strand aluminum - copper coated strands

    Has anyone seen fine strand aluminum - copper coated strands, 2/0 - 250kcmil range?

    I envision something similar to DLO

    I have heard of it. Have never seen any. Have not heard of a supplier.
  8. Replies
    1$$
    Views
    243

    Let me see if I got it: From the breaker - 2 -...

    Let me see if I got it:
    From the breaker -
    2 - 350, per phase, headed one direction to three 750kva transformers - each with its own cutout at the transformer bank.
    2 - 350, per phase, headed the...
  9. Replies
    12$$
    Views
    634

    jfrog - Curiousity question: 3ph, 3W 240 Delta...

    jfrog -
    Curiousity question:
    3ph, 3W 240 Delta - so no neutral. Is is ungrounded, or corner grounded?
  10. Replies
    3$$
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    282

    spraymax, Jraef - You both, of course, are...

    spraymax, Jraef -
    You both, of course, are correct.

    However, let us not forget the portion of 'da brudder-hood' that would use Mag-only CBs for other applications
    ...
  11. Replies
    30$$
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    1,508

    gar - I think he got it. Really, I do

    gar -
    I think he got it. Really, I do
  12. Replies
    5$$
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    623

    408.3.E.1 Phase arrangement - ABC, and B phase...

    408.3.E.1 Phase arrangement - ABC, and B phase for 4w, 3ph, delta
    408.3.F.1 High leg identification
    110.15 High leg marking - Orange
  13. Replies
    30$$
    Views
    1,508

    Yep - unless the mfg is doing something strange...

    Yep - unless the mfg is doing something strange and not telling us.

    Draw a box around the transformer and just look at the vectors. They will look like a delta primary and a wye secondary.
    ...
  14. Replies
    30$$
    Views
    1,508

    From the outside looking in, it is a Delta-Wye...

    From the outside looking in, it is a Delta-Wye transformer. The primary and secondary conductors and OCP can't tell any different.

    As for the currents in the coils and the winding conductor...
  15. Replies
    19$$
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    1,219

    So the 480V output is center tap grounded? end...

    So the 480V output is center tap grounded?
    end grounded?
    un-grounded?
  16. Replies
    15$$
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    756

    I was curious, so I graphed it - low tech, pen...

    I was curious, so I graphed it - low tech, pen and straight edge on 1/10" paper.
    I looks like 208/120 with the neutral displaced ~ 35 volts.
  17. Replies
    19$$
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    1,219

    I need a bit of context The transformer is: 2...

    I need a bit of context

    The transformer is:
    2 wire 240V input (no neutral) this part sounds okay

    This part is odd
    2 wire 480V output (no neutral?)
    I don't think I have ever seen a 1 phase,...
  18. Replies
    19$$
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    1,219

    Was the "1 phase" just a mis-type? And the...

    Was the "1 phase" just a mis-type? And the primary and secondary are 3 phase?
  19. Replies
    15$$
    Views
    756

    And I was wondering - if the numbers were Volts...

    And I was wondering - if the numbers were Volts or Amps

    yep - me as well
  20. Thread: Intercept

    by iceworm
    Replies
    14$$
    Views
    3,134

    Not a freaking thing. Which is why I said:

    Not a freaking thing. Which is why I said:
  21. You mean like an AB 1407-CGCM for a PLC type...

    You mean like an AB 1407-CGCM for a PLC type compared to Basler DEC250N?

    I like the Basler 250N. You still end up with a PCL for tying into the company SCADA.
  22. Thread: Intercept

    by iceworm
    Replies
    14$$
    Views
    3,134

    There have two or three recent threads about...

    There have two or three recent threads about feeding VFDs. You may wish to look those up.

    You didn't ask, however:

    Check the MCC feeder. If it is a Mag-only (MCP) breaker, you may wish to...
  23. Replies
    4$$
    Views
    884

    API RO 500, (2012) 10.1.1 This section...

    API RO 500, (2012)

    10.1.1
    This section presents guidelines for classifying locations for electrical installations at locations surrounding oil and gas drilling and workover rigs and facilities...
  24. Thread: Motor Calc.

    by iceworm
    Replies
    15$$
    Views
    770

    Kwired is likely correct. I also recommend...

    Kwired is likely correct. I also recommend reading the mfg installation manual. Really - rtfm
  25. Thread: Motor Calc.

    by iceworm
    Replies
    15$$
    Views
    770

    Good to know. That is sort of important. Did...

    Good to know. That is sort of important. Did you look at 430 Part X, Adjustable Speed Drive Systems?

    430.122 changes the conductor sizing to 125% of the rated input current to the drive - not...
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