CT burden and ct ratio selection

Discussion in 'The Projects Forum' started by amamfaha, Jul 16, 2013.

  1. amamfaha

    Thread Starter New Member

    Jul 16, 2013
    how to select ct burden in protection system for relays in secondary? i will be pleased if anyone answer me as soon as possible because i have been stuck in this particular problem while designing protection scheme for iEEE 9 bus test system as a final year project. ETAP is a software being used for this.
  2. shortbus

    AAC Fanatic!

    Sep 30, 2009
    A quick Google search of your problem will give you much information. Your question here assumes we know what your working with. The Ct burden is a value that the data sheet for the current transformer you choose will give. They are not all the same.