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  • Users: Here2learn808
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  1. Here2learn808

    Arc Welding Machines and Overcurrent Protective device

    Hi All, We would like to upgrade our facility and its work station for our maintenance. One of the things that we have discussed was adding more 480V welding receptacles to a 60A circuit. Those 60A circuit are currently dedicated to only one welding receptacle and there is a plan to add two...
  2. Here2learn808

    125V DC Power

    All, Great feedback! Ideally, we would like to be able to put the meter in it's own circuit but unfortunately there are no spare on the 125V DC panel. The units all have their own separate power banks, separate 125V DC panel and the capacity is sufficient after doing some calculations on the...
  3. Here2learn808

    125V DC Power

    Thanks GroovyGuy and buzzp. These are all great learning points. I tried to trace all the wiring to the other circuits and it seems that there are spare terminal blocks that can be used to get power from. Buzzp, can you please elaborate on the battery bank and the AC? From my experience we...
  4. Here2learn808

    125V DC Power

    I'm an electrical designer and I just want get an insight on some of the more experience electrical engineers or field personnel with regards to 125V DC Power supply. We are installing a digital generator watt hour meter and we want to be able to monitor the values before the generating station...
  5. Here2learn808

    Phase symbols

    Thank you davidbeach and cuky2000. The primary voltage on the auxiliary transformer unit no. 1 is 14.4kv with a secondary voltage of 2400V. I'm thinking this might be an iso phase bus where it is going to a conduit. Perhaps the notation for the phase changes is just to notify field personnel...
  6. Here2learn808

    Phase symbols

    What is the symbol when the phases switches with one another? What does it represent?http://files.engineering.com/getfile.aspx?folder=6b5ade07-df42-49c3-8591-edd60087e6c8&file=IMG_0549[1].JPG

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