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Type: Posts; User: Jraef

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  1. Replies
    27$$
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    876

    Yes it is... Nicely put. I'm going to use...

    Yes it is...


    Nicely put. I'm going to use that... For me it's not just DIY people. I get it all the time with industrials, especially bean counters who don't want to cough up the money it will...
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    10$$
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    248

    So it appears ABB has given you a viable option,...

    So it appears ABB has given you a viable option, although I know for a fact that other mfrs who give you that option ALSo warn you that by altering it, you void the UL listing. I don't know why ABB...
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    39$$
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    711

    No. A GFCI is a specifically listed Class A...

    No. A GFCI is a specifically listed Class A device under UL943.
  4. Replies
    10$$
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    248

    I'm speaking nominal here... "220, 221, whatever...

    I'm speaking nominal here... "220, 221, whatever it takes."
  5. Yes, basically they changed it from being called...

    Yes, basically they changed it from being called "PPE-0" to just saying "No additional PPE required". That doesn't mean you can wear your sexiest cutoffs and sleeveless AC/DC shirt, it just means...
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    12$$
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    296

    Added it back in. Not sure what happened there.

    Added it back in. Not sure what happened there.
  7. Replies
    39$$
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    711

    Yeah, if your motor has capacitors, then it's a...

    Yeah, if your motor has capacitors, then it's a true single phase motor. So the VFD issue will not be in play.

    I notice in the poop sheet that this is a "premium efficiency" motor and another...
  8. Replies
    39$$
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    711

    The issue is, these are NOT actually "single...

    The issue is, these are NOT actually "single phase" motors; they are 3 phase motors that have a BUILT-IN VFD that converts a single phase FEED to the 3 phase that the pump needs. Then the problem is...
  9. Replies
    12$$
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    326

    COULD be that the actual hole behind that plywood...

    COULD be that the actual hole behind that plywood is a regular round conduit KO and at one time there WAS conduit for those conductors. But someone came along later and decided the conduit was...
  10. Replies
    10$$
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    248

    Correct. It's not the "high leg" aspect, because...

    Correct. It's not the "high leg" aspect, because that leg is only "high" with regard to ground reference. But you only FIND a high Leg system when it's a delta transformer secondary, and ALL drives...
  11. Replies
    12$$
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    296

    I'm glad you heeded the advice. But just for your...

    I'm glad you heeded the advice. But just for your enlightenment:
    That's not 20A LOWER, that's 10A lower. But 10A out of 30 is a VERY SIGNIFICANT imbalance and should absolutely be investigated, so...
  12. Replies
    27$$
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    876

    ATSMan, Correct, he never mentioned exactly when...

    ATSMan,
    Correct, he never mentioned exactly when his fault occurred. Unless he comes back, we may never know.

    On your second question, not exactly. A Soft Starter is only ramping or controlling...
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    3$$
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    250

    That would never pass here, no seismic...

    That would never pass here, no seismic strapping...
  14. Replies
    27$$
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    876

    Well, the OP from Sri Lanka only logged on for...

    Well, the OP from Sri Lanka only logged on for that one day and hasn’t been back since, so it’s likely he didn’t get the simplistic answer he was looking for and went to find it somewhere else.
  15. Thread: 750VDC sheilding

    by Jraef
    Replies
    2$$
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    183

    Welcome to the forum. Depends on the size....

    Welcome to the forum.

    Depends on the size. There are plenty of Lexan / plexiglass / PMMA viewing window options available on 600VAC Arc Resistant switchgear and MCCs and if you think about it,...
  16. Replies
    27$$
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    876

    So it's the same as Constant Torque (CT) rating...

    So it's the same as Constant Torque (CT) rating vs Variable Torque (VT) rating as we call them in this country. Nobody else uses HO and LO over here, but as with many things Siemens, they want the...
  17. I would think it more cost effective to just do a...

    I would think it more cost effective to just do a 208Y120V transformer large enough for all of your >480V loads, then carefully investigate the specific machines that MUST have 240V and add...
  18. Replies
    7$$
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    276

    Are you sure that you have EQUIPMENT that is only...

    Are you sure that you have EQUIPMENT that is only looking for 120V to ground? That can apply to things like circuit breakers, but I've never seen it related to equipment like a fan/coil unit. Because...
  19. Is this using an LED bulb that looks like a...

    Is this using an LED bulb that looks like a regular incandescent lamp? Those have been know to leak their glue when they are enclosed and get too warm. The glass part is actually not that necessary,...
  20. Replies
    1$$
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    177

    No idea about Mass., but in some jurisdictions,...

    No idea about Mass., but in some jurisdictions, it's not a separate "license" but you must have a certificate to be able to make up terminations in MV.
  21. Replies
    30$$
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    1,160

    Another possibility is that the "standard toggle...

    Another possibility is that the "standard toggle switches" are not, they are toggle style dimmers, and maybe the guy doesn't know that. I've seen it where people don't even know they have toggle...
  22. Replies
    24$$
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    826

    So I'm assuming the 480 readings are with the...

    So I'm assuming the 480 readings are with the meter set on averaging, and the erratic readings are reading on instantaneous? If so, and all of the loads are VFDs, I'd suspect this is the result of...
  23. Thread: Exhaust fan

    by Jraef
    Replies
    14$$
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    605

    Lol, glad you explained that. I was thinking...

    Lol, glad you explained that. I was thinking "another flaker" meant another flakey electrician...:slaphead:
  24. Thread: Exhaust fan

    by Jraef
    Replies
    14$$
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    605

    So you got them to change their process to where...

    So you got them to change their process to where they don't need the fan?
  25. Replies
    27$$
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    876

    Horrible idea, the common mode noise issues would...

    Horrible idea, the common mode noise issues would be chaotic and might be getting into the control boards of the drives. Ground conductors with power electronics are not just for safety purposes, so...
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