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  1. pitt123

    Understanding Medium Voltage Switch Short Circuit Ratings

    I'm looking at a particular manufacturers 15kV Metal Enclosed Fused Medium Voltage Switch with the following ratings: Switch Ratings Fault Close and Momentary Asymmetrical - 61kA Short Time (2 sec) 38kA Fused Fault Close - 101kA Switchgear Assembly rating Short Circuit Interrupting...
  2. pitt123

    Harmonic Filter operating characteristics

    Thank You MAGTiger This filter is located on a downstream bus in close proximity to our main plant incoming bus. In this located will it filter these frequencies for the entire plant or only for equipment downstream of the bus the filter is located on? Does the filter simply trap these third...
  3. pitt123

    Harmonic Filter operating characteristics

    Thanks Sibeen Any idea why this resonant frequency of 746Hz would be of particular importance in an industrial facility. Most of our non-linear loads consist of 6-pulse drives however we do have several power factor caps at our large motors. Would this frequency be an attempt to block or...
  4. pitt123

    Harmonic Filter operating characteristics

    MAGTiger The caps are wye connected
  5. pitt123

    Harmonic Filter operating characteristics

    Thanks David Would you be so kind as to point me in the right direction for calculating this design operation based off of these paramaters?
  6. pitt123

    Harmonic Filter operating characteristics

    We have an harmonic filer in our facility that is no longer in service and has not been for a while. All the origonal personel involved with this filter are long gone and there is nobody or no information left behind to explain why the filter was origonally installed. I am curious about the...

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