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  • Users: tbwil1
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  1. tbwil1

    4160 phase rotation verification

    Hello all: I am putting a new 4160V diesel genset in service on an existing med voltage transfer switch. To verify phase rotation I have a 25kV meter with two probes. I plan on reading utility A to gen A and so on with B and C, watching them go to zero volts as they drift in and out. If all...
  2. tbwil1

    Sine wave distortion on paralleled Gensets

    I have three gensets recently installed at a facility with mainly UPS and other electronic loads. They are identical 2000kW sets paralleled to a common emergency bus. The utility transformer feeding the facility is rated at 7500kVA. When the bldg load is powered by the utility transformer there...

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