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  1. EL AABD Jamal

    Assessing Harmonic Losses with ETAP's Harmonic Analysis Feature

    Hello everyone, is there a possibility to calculate harmonic losses (in kW) using the harmonic analysis component of ETAP?
  2. EL AABD Jamal

    high vibration acceleration levels on the DE side of a motor (two bearings)

    Hello, We replaced the bearings of a motor. After commissioning the vibration acceleration levels on the DE side (consisting of two bearings) are high. However, they decrease significantly after the lubrication operations. The vibration velocities in mm/s remain stable. What conclusions can...
  3. EL AABD Jamal

    Modelisation of ABB ACS1000 (12 pulse input rectifier) in ETAP

    I aim to simulate the ABB ACS1000 VFD in ETAP. However, I am encountering an issue where the current VFD model in ETAP allows for only a single power input, whereas the ABB ACS1000 VFD features two power inputs, as depicted in the photo. Is there a way to address this limitation?
  4. EL AABD Jamal

    Slip ring failure of ABB AML 630L6A BAM

    Hi All, I would like to have your thoughts on what coud be the cause of a detachment of a phase of the rotor winding from the slip ring, an explosion was seen. the détachement was internal as you can see on the photo attached. the moment of the failure the relay tripped by (blocked rotor/direct...
  5. EL AABD Jamal

    Inverter NP-Voltage deviation fault ABB ACS 1000

    Dear All, What could be the cause of the Neutral point unbalance fault in the inverter while the motor is running at low speed? For information this is the sequence of events 183.58.3 "NP Voltage " 183.72.1 "AMC: Fault Class 2 " 6.21.7 "INU Tripped " 6.21.19 "INU...
  6. EL AABD Jamal

    F650 relay

    Hi everyone, can someone explain to me how to choice communication card of F650 GE relay
  7. EL AABD Jamal

    Damage curve of electrical equipment

    Hello everybody Can someone give me an idea where i can find Damage curves of electrical equipment, i'm studying a selectivity in an electrical substation
  8. EL AABD Jamal

    Transmission line on Etap

    Hi everybody, I tried to start short circuit study case, but it appears that fault: THE CONDUCTOR/WIRE COORDINATE SHOULD NOT BE ZERO can someone help me to fix it
  9. EL AABD Jamal

    Short circuit Power of upstream grid and wind farm

    Hello, can someone give me the orders of magnitude of the short-circuit power of an upstream grid and a wind farm according to the nominal voltage.

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