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  • Users: pradtt
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  1. pradtt

    I/R test failure of 66 kV oil filled cable

    Hi we recently repaired a 66 kV oil filled cable which was damaged by third party Upon doing the final I/R test, the blue phase to earth reading was 92 M ohms. R and W phases were both in the range of 2.5 G ohms. the phase to phase readings were as follows R-W 3 G ohms , R-B and W-B 440 M ohms...
  2. pradtt

    circulating current in 3 core cable used for single phase of t/f lv

    hi we recently used 3 - 3 core cables ( one cable for each phase - for ampacity issues ) for the lv of a 33/6.6 kV T/F and there was a resultant current circulating through the armour of the cable which was connected to the T/F lv cable box and the earth bar of the switch gear. can anyone say...

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