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  • Users: QBall6
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  1. QBall6

    Inverter Failures related to Voltage Sags?

    What is the lowest voltage an inverter can handle on a three phase system (460VAC) before it starts to fail? I have recently seen more and more inverter failures and I believe it is related to our incoming power. I need to know how low can the voltage drop before it fails.
  2. QBall6

    What is the Best TVSS for Manufacturing?

    I know there are lots of TVSS or SPD's (Transient Voltage Surge Suppressor or Surge Protection Device) on the market. But there has to be one that tops them all. I want to protect a service that has 480/277V,WYE, 3ph, 4W. I am looking at the incoming power switchgear which is 4000A. I could go...
  3. QBall6

    Bearing Monitoring Systems

    What is the best method to utilize to monitor 125HP and up Fan Bearings on a shaft of 6 inches to prevent unwanted shutdowns due to bearing failures?
  4. QBall6

    E-Stop Guarding

    thread301-181143 I am in a similar situation with the E-Stop delima. I need to find supporting information specifically about using guarding around E-Stops like the "U" shaped protection guards. Can anyone help me with this? I don't think that it is legal to put guarding around an E-Stop...

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