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  1. luispereiraenvc

    Economical selection of 90KW Motor Starter Components

    ah ah! IEC's are well paid publications! You are only able to see a preview. Sometimes you can found complete publications but they are replaced/withdraw versions. That's why I'm asking that. Expecting some one is using it and that let me know. By the way, 60034-1 is only related to motors...
  2. luispereiraenvc

    Economical selection of 90KW Motor Starter Components

    ScottyUK, is that IEC 60034-1 related only to Electrical Motors or also to Starters, Starting methods, etc.?!? LionelHutz, Yes, I was expecting a general answer. This pump was just an example that triggered my curiosity because of such big diferences between predicted Power consumption (50KW)...
  3. luispereiraenvc

    Economical selection of 90KW Motor Starter Components

    Hi LionelHutz, That’s because some answers are to explain me how overload relays, circuit breakers or contactors work. Indeed, what I need to learn is how pump manufacturer provide info about its pumps and attached Motors! Previously what I was looking for was: Anyway, I was looking in...
  4. luispereiraenvc

    Economical selection of 90KW Motor Starter Components

    Hummm, it looks that my classification of (Marine/Ocean) is not well accepted in this forum! :D In fact it should be Electrical, I didn’t realized that when I subscribed this forum. Thanks for the documentation, waross. And for the example you described in the 1st post. It makes me remember a...
  5. luispereiraenvc

    Economical selection of 90KW Motor Starter Components

    Hi, I’m not sure if it is clear to everybody, but I’m just raising questions triggered in my mind by this particular case with such big differences in pump and motor selection. I’m not planning to proceed with it! First objective is to know the reference publication in Europe concerning this...
  6. luispereiraenvc

    Economical selection of 90KW Motor Starter Components

    Thanks DRweig and jraef. I’m on Europe. Portugal, to be more specific. This pump is from a Vessel we are building to Venezuela, so 440V/60Hz instead of 400V/50Hz. Usually we base our calculations in the Nominal Power of the Motor. When the Pump manufacturer don’t provide the Full Load Current...
  7. luispereiraenvc

    Economical selection of 90KW Motor Starter Components

    Dear All, I'm new in this forum, but I would like to have your opinions related to the following Motor Starter components selection. Usually, when we need to dimension the contactors, circuit breakers, cables and so on, for a certain Pump, we consider the nominal power of the electric motor of...

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