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Type: Posts; User: kwired

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  1. Are they just replacing a pole or is this an...

    Are they just replacing a pole or is this an extension of a line and other equipment is also being added? Add a transformer and some additional gear and that may be cheap.
  2. Was the guy working within the jurisdiction...

    Was the guy working within the jurisdiction boundaries that he is an inspector for?

    Even if not he should know better then to not get proper licensing and/or permits required where needed if he is...
  3. Thread: VFD question

    by kwired
    Replies
    21$$
    Views
    909

    Out here in the boonies it is more common to see...

    Out here in the boonies it is more common to see larger single phase services then it may be in cities.

    I just converted a 2000 amp single phase service at a school building in a small town to...
  4. If first compressor failure put contaminants in...

    If first compressor failure put contaminants in the system and they were not removed when the compressor was changed out it would shorten the life of the next compressor.

    Your low voltage on...
  5. Thread: Gfci

    by kwired
    Replies
    35$$
    Views
    1,295

    Sounds like it is time to meg your circuit...

    Sounds like it is time to meg your circuit conductors.

    I don't know all the in's and out's of the new self tests, but it is supposed to test the functioning of the device otherwise the ground...
  6. Replies
    59$$
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    3,147

    I have had to do this to a three phase...

    I have had to do this to a three phase "alternator". It has been so long ago I don't remember exactly what was done, but all we did was apply 120 VAC to the excitation circuit (because that is what...
  7. Thread: Gfci

    by kwired
    Replies
    35$$
    Views
    1,295

    You still have no current imbalance through the...

    You still have no current imbalance through the sensing CT of the GFCI. My only thought (if something isn't being held back from us) is there is inductive kickback on the supply circuit that the GFCI...
  8. Thread: VFD question

    by kwired
    Replies
    21$$
    Views
    909

    20 HP single phase motors are not so easy to come...

    20 HP single phase motors are not so easy to come by and phase converter or VFD would be the more common application here. Keep in mind for most off the shelf VFD's this means you need at least a 40...
  9. Replies
    65$$
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    1,649

    Just reading that subsection it would appear that...

    [/QUOTE]

    Just reading that subsection it would appear that way, but this is a subsection of part VI on equipment grounding conductors. Seems to need a little wordsmithing to me to get it to say...
  10. Replies
    22$$
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    799

    Could be foreign material inside someplace. Even...

    Could be foreign material inside someplace. Even if they are definite purpose contactors, new Square D DP contactors are reasonably quiet initially, give them some time and they may not be though.
    ...
  11. I think you are barking up the wrong tree, AC...

    I think you are barking up the wrong tree, AC motors are not all that sensitive to transient voltages, that are considered normal on the distribution system, and the motors themselves can be part of...
  12. if there is no plans with specifics for...

    if there is no plans with specifics for electrical, you have to either shoot high or at least talk to the owner and find out what they will want. Many of them have no idea what electrical all...
  13. Thread: VFD question

    by kwired
    Replies
    21$$
    Views
    909

    If I may ask what you are powering with these...

    If I may ask what you are powering with these motors?

    If they are general purpose motors and don't need speed regulation or soft starting the least expensive route would just be to replace the...
  14. Replies
    48$$
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    1,422

    With dwellings as the "tenant's" the need for...

    With dwellings as the "tenant's" the need for three phase in each tenant space is usually nil, you just balance the load by balancing the feeders across the three phases.

    If you have commercial...
  15. Replies
    68$$
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    1,698

    What is requirement to call it "attached"? So far...

    What is requirement to call it "attached"? So far roofs, walls have been mentioned, but isn't a floor/walkway also going to link the two to some extent? If absolutely not then every patio out there...
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    68$$
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    1,698

    Does it have at least 20 feet of rebar, if not...

    Does it have at least 20 feet of rebar, if not it isn't required to be used as an electrode, that doesn't mean in some situations it may still have lower resistance then a rod though.

    If GFCI is...
  17. Replies
    59$$
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    3,147

    I have had to restore residual magnetism to a...

    I have had to restore residual magnetism to a generator before, all one needs is to apply anything from 12 volt DC from the starting circuit of the prime mover to full excitation operating voltage to...
  18. Replies
    68$$
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    1,698

    And it is also built or constructed if it is part...

    And it is also built or constructed if it is part of another structure.

    The question is whether it is a separate structure or not. Does it need to have a common roof or wall as another structure...
  19. Replies
    48$$
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    1,422

    And I think the majority of places are similar,...

    And I think the majority of places are similar, you need to be properly authorized or licensed utility to sell electric power, in most cases it is so they can collect applicable taxes and other fees...
  20. Replies
    68$$
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    1,698

    Are refrigerators intended for outdoor use? ...

    Are refrigerators intended for outdoor use?

    Defrost cycle maybe initiated when it trips or some other feature that is not always on?
  21. Replies
    48$$
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    1,422

    Well a general statement that sub metering is...

    Well a general statement that sub metering is illegal is just plain wrong. You can measure power all you want, what you may not be able to do is sell it.
  22. Replies
    59$$
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    3,147

    If it were at my place I wouldn't be able to...

    If it were at my place I wouldn't be able to resist the challenge to try to make it work.

    If it were for a customer it may not be worth what I may have to charge them when all is said and done.
  23. Replies
    48$$
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    1,422

    Sub metering for the purpose of selling power is...

    Sub metering for the purpose of selling power is likely what is not allowed. If there still is a utility company meter ahead of the submetering, then the owner (where applicable) can't sell power to...
  24. Replies
    59$$
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    3,147

    Might want to make certain it is properly set up...

    Might want to make certain it is properly set up for LP and not NG also.
  25. Replies
    21$$
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    1,149

    Don't send pictures of the finished product or...

    Don't send pictures of the finished product or pictures taken while installing, or both?:blink::)
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