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  • Users: UASteve
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  1. UASteve

    short term overloading of a DC motor.

    Does overloading a DC motor result in drawing more than nameplate amps? My customer is going to operate a DC motor at or slightly above the HP curve at a given RPM. From motor nameplate, 995A 452V, 600HP, 1300RPM. Customer needs 224HP at the load (after a gearbox of unknown efficiency) at...
  2. UASteve

    surge suppression device to protect a 120VAC PLC input card

    by spec i must supply surge protection for each individual PLC input in my panel. These devices are all of the voltage free (dry contact type) where the 120VAC will be supplied by my panel. i found a WAGO MOV to ground terminal block and i believe this is the appropriate device to comply with...
  3. UASteve

    momentary loss of power may drop motor starter, restart immediately or delay restart?

    I am designing a PLC control panel for a train tunnel ventilation system. I am mandated to provide my panel with power from 2 small UPSs that will be powered by presumably separately derived systems. I have a design that can keep the UPS power separated for most components but I will need to...

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