Question ajoutée par
ahmed saad eldin elkasass
, استشارى مشروعات للحماية الكهربية , المجموعة الهندسية السعودية العالمية
Date de publication: 2015/11/10
The operating current of the low-impedance protection is not realized by CT connection. The relay measures all four current transformer(CT) necessary to realize the element..
The operating current of the High-impedance protection is realized by CT connection.