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  1. itsmetinnie

    230 VAC, 2Ph, IT System (Neutral configuration) vs non-UPS supply at 230 VAC, 1Ph, 50Hz

    Please help to explain the difference between these 2 supplies: - supplied from UPS supply at 230 VAC, 2Ph, IT System (Neutral configuration type) 50Hz, by a dedicated redundant power cables; - supplied from non-UPS supply at 230 VAC, 1Ph, 50Hz We are buying a PLC Siemens SR30 model and our...
  2. itsmetinnie

    Squirrel Cage motor with space heater and PTC

    Can some one share a photo of motor terminal box with space heater and PTC installed. Just want to see how it looks like in actual.
  3. itsmetinnie

    API 676 Tolerance for progressive cavity pumps

    The available power at motor shaft at design temp is 0.82 kW, rated power of the motor is 1.1 kW. Please further explain the +4% tolerance per API 676 means.
  4. itsmetinnie

    API 676 Tolerance for progressive cavity pumps

    Can someone help explain what does Tolerance of +4% for the rated power in API 676 means? I have a progressive cavity pump and based on the FAT report the absorbed power is 0.07 kW, the basis of tolerance is +4% of motor rated power based on API 676 (min = 0.07 and max = 0.15 kW) The actual...
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