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  • Users: hd2000
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  1. hd2000

    Hermetically sealed voltage & current transformers - CT VT

    Good day, In our network we have several Hermetically sealed voltage and current transformers ranging from 33 - 220kV. There are several which have developed oil leaks. Can these be repaired as they are Hermetically sealed units? We would preferably repair them in-house / on site as we are a...
  2. hd2000

    Induced Voltages on Un-Energized Distribution Lines from Transmission Lines

    Hi does anyone have any experience or tips on how to work on e.g. 11kV Distribution lines running close/parallel to eg. 220kV Transmission lines? Whenever we have to work on distribution lines even with multiple earth connected our linesmen still feel induced voltages when wearing HV gloves, at...
  3. hd2000

    Voltage Indicator for Armoured Cable / RMU

    Good day! We are operating a small distribution network and during operations we wish to be able to identify at switchgear live feeds/legs. We have old unintelligent switchgear with no capacitive test points on them. I know there is no contact-less tester for armoured cables (how i wish), but...
  4. hd2000

    Distribution Transformers in same Area blowing same phase

    Greetings all, was normally browsing here as a guest but have now decided to join this great group :) :) I have a problem in a distribution network I maintain. It is in an area with: Main 33kV D-D step down to 11kV sub-station(fuse protected both sides HV & LV) Then 11kV outgoing...

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