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  1. H

    altivar 71 output voltage

    hi guys hope you all doing good so here my question the input voltage of the VFD (altivar 71) is 400v but when start in mode run the output voltage is only 310v is it logic i think no i appreciate your cooperation an advance thanks
  2. H

    how to choose component?

    hi guys hope that your doing good i need help i want to know how to choose MCB RCCB...... contactor overload cable size etc,,,,, for any load thnak you hicham
  3. H

    atlas copco air comp

    hi the prob was in transformer i found a failure fuse now its ok thank you
  4. H

    atlas copco air comp

  5. H

    atlas copco air comp

    means?????
  6. H

    atlas copco air comp

    hi i want to reset but won't (electronikon 1) display showing a motor blinking
  7. H

    atlas copco air comp

    hi guys hope all of you having a good time my air compressor atlas copco GA11 FF is not running due to a fault a red light is in screen i try to reset many time but not gone thanks for help
  8. H

    two motor star delta

    thank you we are all here to learn
  9. H

    two motor star delta

    same mixer yes as you said one rewind other no
  10. H

    two motor star delta

    yeh its all ok unfortunately 2 of motor coil fire and i change today thank you
  11. H

    two motor star delta

    actually without load he is pulling more current and we just rewind it and fix it and its same size same company manufacturer thanks for help
  12. H

    two motor star delta

    hi guys i have an issue with one of two motor running star delta for a concrete mixer one motor is pulling out more current than the other one almost 10A difference (1st=39 , 2nd=48) knowing that the 2nd is rewinding both motor are same company

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