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Type: Posts; User: templdl

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  1. Replies
    6$$
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    270

    The Klein is the one that I have. I think with...

    The Klein is the one that I have. I think with any testing device they are not 100% fool proof and it is best to double check. But it is better that not having any idea/direction at all when trying...
  2. Replies
    6$$
    Views
    270

    Reasdonaslly priced, we hat price range did you...

    Reasdonaslly priced, we hat price range did you have in mind and what is your vision as to how you would be expecting to use it?
  3. Replies
    27$$
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    754

    Are the breakers labeled as comp ntrip?

    Are the breakers labeled as comp ntrip?
  4. Ditto..

    Ditto..
  5. Replies
    15$$
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    596

    My guess that is my it has been included in the...

    My guess that is my it has been included in the NEC.
    Like fused one could go as far as replaced the trip unit off an interchangeable trip breakerr or just replacing the breakerr all together, yes...
  6. Replies
    33$$
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    1,298

    Thanks for that. I'm going to make a note of that...

    Thanks for that. I'm going to make a note of that in a place where hopefully it won't get lost.
  7. Replies
    15$$
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    596

    Help me out a bit. Doesn't the subjest 800a...

    Help me out a bit.
    Doesn't the subjest 800a breaker have an adjustable trip?
    Interesting that you are not familiar with NEC art 240-6(B) adjustable-trip breakers.
    The rating of an adjustable...
  8. Replies
    15$$
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    596

    Just one comment. Since the breakers has...

    Just one comment. Since the breakers has adjustable long time whic means that anybody could walk up and change the breaker's longtime setting would't it be required either sized the cable to 800a or...
  9. Replies
    33$$
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    1,298

    Bingo! Then selecting tty he properly tasted ZNR...

    Bingo! Then selecting tty he properly tasted ZNR diode is the next thing. This is a common application.
  10. Replies
    33$$
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    1,298

    May it be a ZNR, zener transient surge surpressor...

    May it be a ZNR, zener transient surge surpressor diode??
  11. Replies
    7$$
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    355

    I agree if the breaker is calibrated on the low...

    I agree if the breaker is calibrated on the low side. But it it is calibrated on the high side it may be 1 hour.At 15a that curve gets pretty vertical and a slight shift to the right from 15 to 20a...
  12. Replies
    16$$
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    568

    Will the float switch that you choose prevent...

    Will the float switch that you choose prevent short cycling? That is do you have a given liquid lever range that you want to stay within. When the liquid recedes to a specific level the motor turns...
  13. Replies
    60$$
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    3,010

    Ditto! The inspector should be thrilled about it.

    Ditto! The inspector should be thrilled about it.
  14. Replies
    7$$
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    326

    I always look at as the secondary protection...

    I always look at as the secondary protection provide the overload protection for the transformer. The primary OCPD protects the upstream distribution system should the transformer fail. As such you...
  15. Replies
    5$$
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    198

    Are you replacing the common overload relay of a...

    Are you replacing the common overload relay of a 480v starter with fuses? If so what is you objective when an overload relay with correctly sized heaters would be appropriate?
    With a combination...
  16. 32v is usually the limit for a std BB scheme. But...

    32v is usually the limit for a std BB scheme. But a custom BB can be built to do it though it would be similar in cost to a std xfmr and there is no isolation with a BB.
    One may consider a small...
  17. I had provided breaker curves and let through...

    I had provided breaker curves and let through currents many times in the past to OEMs such that they could get a good idea as to what to expect the results would be when they did their series testing...
  18. Replies
    16$$
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    780

    Damn!! Did it again!! I am stuck on 3ph!! I...

    Damn!! Did it again!! I am stuck on 3ph!! I apologize.
    With a 480/240 1ph secondary you would face the same issue with detecting a L-G fault with a pri only OCPD. Even though you don't have any L-N...
  19. Replies
    16$$
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    780

    [QUOTE=templdl;1704503]

    [QUOTE=templdl;1704503]
  20. Replies
    16$$
    Views
    780

    Or bh

    [QUOTE=dave121;1704044]I don''t have a picture of the trans. right now ,but they are being built for us for the purpose of stepping up from 240 to 480, single phase, with the center tap on the...
  21. Replies
    16$$
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    780

    Oops, as you can tell I had 3ph D-D on my mind an...

    Oops, as you can tell I had 3ph D-D on my mind an well as the mention of a center tap. With no additional info provided then is a common 480-120/240 or 240/120 transformer being used as a step up...
  22. Replies
    16$$
    Views
    780

    240/480 with grounded centrertap in an...

    240/480 with grounded centrertap in an interesting arrangement.
    Which derlta has the center tap, the 240 or 480? It is being left to assume that the 480 delta has the center tap which is not very...
  23. Replies
    30$$
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    983

    Yes, thanks for your reply. One of the things...

    Yes, thanks for your reply. One of the things that I attempt to do when addressing an application question which may at times seem to be unreasonable is to assure that we are on the same page and...
  24. Replies
    30$$
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    983

    Thern the transformer isn't a basic delta...

    Thern the transformer isn't a basic delta secondary but a 240/120 delta with a lighting top then.
  25. Replies
    22$$
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    903

    Should it be an inadvertent overload or knowing...

    Should it be an inadvertent overload or knowing overloading a circuit with the expectation that the OCPD will provide protection? I have always been of the school that one should never...
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