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  1. xnuke

    What is typical switchgear DC control power voltage in Germany?

    I realize this question is somewhat customer-specific, but what are people seeing a lot of customers using? 24 V DC? 48 V DC? 125 V DC? 250 V DC? Other? xnuke "Live and act within the limit of your knowledge and keep expanding it to the limit of your life." Ayn Rand, Atlas Shrugged. Please...
  2. xnuke

    480 V sensing required

    A source typically connected to a 480 V bus requires 480 V sensing from the 480 V line side of the main breaker for grid synchronization purposes. For a proposed application however, the source will be connected via a step-up transformer to connect to a 13.2 kV bus with a 13.2 kV line feeding...
  3. xnuke

    Learning PLCs

    I posted a FAQ a few weeks ago with links for beginners who are looking for online PLC learning opportunities and/or product-specific information. I'd appreciate it if others took a look at it and made suggestions for things to add/delete/modify. See faq791-640. Thanks xnuke Please see...
  4. xnuke

    P&ID Information

    SCADA/HMI systems are becoming very prevalent, and the ability to display any point in a PLC on a SCADA screen is easy and rapidly configurable. Also, it is easy to alarm every point, and many are configured to have multiple alarms. Should every physical point monitored in the SCADA system be...

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