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  • Users: encon5
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  1. encon5

    Two separate grounding pad inside a building.

    We have 2 grounding pad at the basement of a new high rise building. The first is intended for indoor substation grounding while the second is intended for the lightning arrester grounding thru downconductor or downwire. The two pads are not connected to each other. This is the electrical...
  2. encon5

    Polarization Index and Insulation Power Factor Test

    Can somebody enlighten me on Polarization Index and Insulation Power Factor Test. Which of the two has more significance in terms of determining the integrity of insulation of a brand new 3 phase oil-filled transformer rated at 23KV/460V. Would appreciate your response. encon5
  3. encon5

    Substation transformer

    We will be installing a 2 MVA 23KV/480V delta-wye 3 phase oil-filled indoor substation transformer. The catalog shows the six terminals on the HV side. They call it loop fed. Can somebody elaborate on this. Thanks. encon5
  4. encon5

    Lightning arresters

    What type of lightning arrester would you recommend to be installed at the roof deck of a 12-storey commercial buliding? encon5

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