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  • Users: peterwork
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  1. peterwork

    Addition Air-Conditioning Required ?

    Do we need extra airconditioning in the existing equipment room due to our additional 2 nos 3kVA UPS. Equipment room size is 8m (L) X 6m (W) Existing Loading: - Control power supply (8 nos. UPS each 2kVA) - Signal equipment power supply (10 nos. UPS each 2kVA) Existing Air-conditioner: 2 Nos...
  2. peterwork

    Soft Starter 800KW, 690V

    Hello, which manufacturer its soft starter's rating can reach to 800KW, 690V ? (Telemec ? ABB? or Simens?.or ...) Thanks,
  3. peterwork

    2-phase loading in 3-phase circuit

    Dear all, It is a 380V 3-phase 4 wire system. A two-phase loading was connected to the system (Ph-R & B). Also, a 3-phase fixed type capacitor was connected to the system (Ph-R, Y & B) as well. Since we made the power analyser in "3-phase 4 wire" mode as usual for the measurement, may it cause...
  4. peterwork

    2-phase loading in 3-phase circuit

    Dear Friend, We have conducted an energy audit to a 2-phase loading which was supplied by a 3-phase circuit (Phase R & B). We found that the power factor with both the leading and lagging signs for the phases. Why? Since we're not often work with the 2-phase loading, so would the expert here...

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