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  1. Not that I am aware, see 220.87 looks like the...

    Not that I am aware, see 220.87

    looks like the maximum demand here might be 127.6 kVA, but it isn't clear to me if that is for the past month for past year. assuming it is for the year, multiply...
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    3$$
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    a biomass power plant that works off...

    a biomass power plant that works off anaerobically digested baby food... that's oddly specific??
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    Video from SQD on replacing thermal units:...

    Video from SQD on replacing thermal units: https://www.youtube.com/watch?v=Gy1KrKzer3o&vl=en
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    a panel doesn't "pass" UL inspection. the...

    a panel doesn't "pass" UL inspection. the inspection is by the panel builder at the factory. non-compliant panels leave shops every day. safe panels without UL labels are installed by property owners...
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    6$$
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    you do not need to replace the starter. having it...

    you do not need to replace the starter. having it oversized will cause no issues.

    you WILL need to replace the heater units based on the NAMEPLATE amps of the new motors. this is because the...
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    Danfoss is big on this. Only certain models are...

    Danfoss is big on this. Only certain models are compatible.
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    13$$
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    second that often times it is easy for electrical...

    second that often times it is easy for electrical maintenance or even engineers to overlook mechanical aspects such as air balancing. mechanical also has a habit of thinking things they change don't...
  8. you can't round up over 800 amps. 240.4(C)

    you can't round up over 800 amps. 240.4(C)
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    2$$
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    very typical.

    very typical.
  10. we regularly run into this exact issue because we...

    we regularly run into this exact issue because we use NEC calculations to make additions. there is not always time or money to place a logger. NEC calc's always over estimate the load, and rightly...
  11. you can do it a couple ways. first is you can...

    you can do it a couple ways.

    first is you can put a power meter on it for 30 days that logs demand every 15 minutes. take the max value from that data set and multiply it by 125%. that is your...
  12. How did someone come up with the 1200 amp for the...

    How did someone come up with the 1200 amp for the MCC? You do the same thing with the switchgear. Add up all continuous loads and add 25% of the largest continuous load.
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    10$$
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    to expand on this, a one-for-one replacement with...

    to expand on this, a one-for-one replacement with LED technology may not always be practical. pay very close attention to the light temperature and lumen output of the replacement fixture to be sure...
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    I don't have books to sell, but I'm going to...

    I don't have books to sell, but I'm going to direct you to a previous thread that has much good insight from many here on the forum.

    best of luck. :thumbsup:
    ...
  15. Thread: New Forum

    by drktmplr12
    Replies
    14$$
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    3,438

    :lol:

    :lol:
  16. Thread: New Forum

    by drktmplr12
    Replies
    14$$
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    3,438

    wife not speaking, how do i proceed? do i...

    wife not speaking, how do i proceed?

    do i power off and back on again?
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    13$$
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    part of the art of being a consultant is...

    part of the art of being a consultant is extracting what a customer actually wants from what they are telling you. the tree swing cartoon comes to mind. the worst is when you give them what they...
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    From what I understand, Danfoss's HMI is one of...

    From what I understand, Danfoss's HMI is one of the best and easiest to use. I'm not suggesting that you don't need the analog dial, only another possibility. I've also heard their drives are very...
  19. 695.7 has two requirements, one each for starting...

    695.7 has two requirements, one each for starting and running

    Motor starting conditions limit VD to 15% of controller rated voltage at line side of motor controller

    Motor running limits VD to...
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    10$$
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    armored cable would likely not fit it seems. :(

    armored cable would likely not fit it seems. :(
  21. OP did not state if the generator was dedicated...

    OP did not state if the generator was dedicated to the fire pump and was the only power source. if true, the generator must be able to carry locked rotor amps indefinitely according to 695.3(A), as...
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    Perhaps using armored 4 conductor #12 would help...

    Perhaps using armored 4 conductor #12 would help here since it is technically in its own raceway and therefore physically separated from the. the armor should effectively keep the emf from the motor...
  23. Loaded question because generator sizing depends...

    Loaded question because generator sizing depends on many factors including motor starting code for the fire pump and voltage dip, frequency shift and starting kva capabilities of the genset. these...
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    8$$
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    644

    110.26 (C) requires that gear 1200 A or above,...

    110.26 (C) requires that gear 1200 A or above, over 6 ft wide and with over-current devices, you must have egress (exit) on both sides of the equipment unless you either double the working space...
  25. Thread: One for JR

    by drktmplr12
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    11$$
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    932

    there is fascinating navy training videos of the...

    there is fascinating navy training videos of the mechanical "fire control computers" they used in the 40's and 50's. at least i find it fascinating :D

    https://www.youtube.com/watch?v=s1i-dnAH9Y4
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