This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Dead Short

Former Community Member
Former Community Member
Tested a 3 phase supply lighting supply to street lighting.

IR tested 0.00 on all 3 phases.

contin. tested to 1.79,1.76. 1.48

But when generator is used the fittings work.

any theory would be nice.
Parents
  • Former Community Member
    0 Former Community Member
    Full setup is 4 pole switch fuse from busbar fed to contactor which then feeds a 4 way mem cartridge fuse db.

    Photo-cell is fed from incoming supply to contactor then stepped down to a 6 amp mcb. 

    This then feeds the photo-cell and override 20amp rotary  isolator.

    The system used to be fed from a high voltage step down transformer which leaked b4ecause of age and was removed from service.

    The whole site was left abandon for 10 to 15 years.

    It is now going to be fed from a generator.
Reply
  • Former Community Member
    0 Former Community Member
    Full setup is 4 pole switch fuse from busbar fed to contactor which then feeds a 4 way mem cartridge fuse db.

    Photo-cell is fed from incoming supply to contactor then stepped down to a 6 amp mcb. 

    This then feeds the photo-cell and override 20amp rotary  isolator.

    The system used to be fed from a high voltage step down transformer which leaked b4ecause of age and was removed from service.

    The whole site was left abandon for 10 to 15 years.

    It is now going to be fed from a generator.
Children
No Data