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  1. Or a different neutral path back to source if all...

    Or a different neutral path back to source if all the neutrals in a junction box got made up as one neutral:happyyes:
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    With the voltages listed in the OP 220/400 I...

    With the voltages listed in the OP 220/400 I doubt very much that this is a US application and most likely a 50hz one to boot.

    But I may be wrong????
  3. Thread: maximum amps

    by hurk27
    Replies
    6$$
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    440.32 80% or 16 amps table 210.2 directs us to...

    440.32 80% or 16 amps table 210.2 directs us to 440.
    440.62 requires a Room Air Conditioner to be cord and plug connected so the question does not state cord and plug connection so 440.32 should...
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    29$$
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    907

    Correct, many times the rod will be next to a...

    Correct, many times the rod will be next to a foundation or concrete basement wall, there maybe other conductive utilities such as metal water lines or gas piping within the SOI, in some cases you...
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    29$$
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    I have always believed that for the most part a...

    I have always believed that for the most part a hot to ground or a neutral to ground MOV's is and always will be a waste of money, surges do not want to go to earth or ground, like any electrical...
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    I have no idea why you are bringing in the...

    I have no idea why you are bringing in the transformers neutral to earth reference, for all purpose of modeling the above said circuit it should not even be considered a part of the circuit, this is...
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    That panel looks like it was flood damage, is...

    That panel looks like it was flood damage, is this left over hurricane damage? is it in a basement?

    If it was sure hope you getting paid is not dependent upon the insurance paying:happysad:
  8. Or the 40va transformer is not large enough to...

    Or the 40va transformer is not large enough to power the damper actuator and the voltage drop off every time the damper goes full open and RIB 2 energizes thus damper closes and the cycle starts over...
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    As said previously and in many other recent...

    As said previously and in many other recent threads like post 16, ground rods do not have a low enough impedance path to lower the voltage to a safe level, with the 3 volt example in this thread a 25...
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    86$$
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    Poll: Mike I think what we are all trying to tell you...

    Mike I think what we are all trying to tell you is ahead of the main service disconnect or at multiple SDS's in a single building the code does not treat parallel neutral current as objectionable,...
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    29$$
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    Sahib, when modeling a circuit you must take each...

    Sahib, when modeling a circuit you must take each load in the circuit as a separate component, you can not add a resistance load to the circuit then use the circuits load as part of that components...
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    86$$
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    Poll: I don't know of any other words to describe it...

    I don't know of any other words to describe it other then the "grounding system", but we also must understand that each part of this system plays very different parts in the electrical system as a...
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    86$$
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    Poll: Mike I have no idea of the experience level of...

    Mike I have no idea of the experience level of the people who had tried to fix this problem before the home owner called you, but we must keep an open mind that there are many out here doing...
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    86$$
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    Poll: So why did you put #9 separate from #5??? if #5...

    So why did you put #9 separate from #5??? if #5 was true the #9 would also be true?

    sure hope your not witting the test for Ohio's electrical testing:p
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    86$$
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    Poll: Al, your confusing me????? A GES system is not...

    Al, your confusing me?????

    A GES system is not to provide a low impedance path to operate OCPDs earth can not provide that? were you meaning EGC?
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    22$$
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    Yep I was editing it as you posted:ashamed:,...

    Yep I was editing it as you posted:ashamed:, cought it, thank's





    my thoughts also
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    22$$
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    3-5 volts is a very normal voltage drop of a...

    3-5 volts is a very normal voltage drop of a service neutral between the meter and the transformer, this voltage drop will raise the voltage on all the grounding and neutrals of this building to...
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    86$$
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    Poll: But I would believe it is unavoidable in many...

    But I would believe it is unavoidable in many cases and very acceptable by the NEC, all GEC's are in fact parallel with the utility neutral, they will always share the neutral current proportionally...
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    86$$
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    Poll: You must have posted while I was still writing,...

    You must have posted while I was still writing, good question, even if this house had a balanced service the neighbors house would still put the 4.8 amp on the neutral, so scratch the lost neutral at...
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    86$$
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    Poll: Well my guess is lost utility neutral at the...

    Well my guess is lost utility neutral at the pole/transformer, but since the poll would not allow another answer to be also selected I would also have to select #9 as both should have been within the...
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    29$$
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    907

    You are correct the voltage will be 60 volts, for...

    You are correct the voltage will be 60 volts, for some reason I had the thought of the service neutral blowing open and got my mind mixed up, here in the US it is not uncommon that the POCO will...
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    29$$
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    You have a big problem with your math. A line...

    You have a big problem with your math.

    A line to EGC bolted fault at service will be the sum of the resistance of the neutral to the transformers X0 as well as the ungrounded conductor, lets say...
  23. When I have done a EPG under and around a sub...

    When I have done a EPG under and around a sub stations we tapered the mat deeper as we passed the fence boundaries to keep from having a step potential at the edge of the mat, at one time this was a...
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    I just saw the 300hp chipper motor and the 600...

    I just saw the 300hp chipper motor and the 600 amp service that got reduced to a 400 amp service part, not sure how I missed it but you have a really big problem.

    that motor is going to have a FLA...
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    With the LRA of each unit is only 8.2 amps (VFD...

    With the LRA of each unit is only 8.2 amps (VFD driven) so at 16.4 amps+the fan loads of 1.26 amps I don't see a problem, if it wasn't for the soft start then yes the normal LRA would most definitely...
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