Earthing cable sheat - Phase error

Discussion in 'Homework Help' started by Azrou, Dec 29, 2012.

  1. Azrou

    Thread Starter New Member

    Dec 29, 2012
    1
    0
    Hello,

    I have two questions (High voltage field):

    1- Why is the cable sheath earthed? (at one side or two sides).
    2- What causes the phase angle error in the instrument transformers.

    Thanks in advance,
     
    Last edited: Dec 29, 2012
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