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Core balance type CT°¡ ´õÁÁÀº ÀÌÀ¯?
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ÀúÇ×Á¢Áö °èÅë¿¡¼´Â Core balanced type CT(°üÅëÇü CT)¸¦ Àû¿ëÇϸé ÀåÁ¡ÀÌ ÀÖ½À´Ï´Ù. Á÷Á¢Á¢Áö °èÅë¿¡¼ ¼ø½Ãµ¿ÀÛ(50G) Ư¼ºÀ» °í·ÁÇÏ¿© ÀÜ·ùȸ·Î¹æ½ÄÀÌ¿Ü Core balanced type CT¸¦ Àû¿ëÇϵµ·Ï ±ÇÀåÇÏ´Â °ÍÀº ºÎÇÏ ¸»´Üȸ·ÎÀÎ °æ¿ì´Â °í·ÁÇغ¼ ¼ö ÀÖ°ÚÀ¸³ª IEEE ¿ø¹® Àü.Èĸ¦ ¼öÁ¤ÇÏ¿© ¿Ã·ÁÁֽøé Àç°ËÅäÇÏ°Ú½À´Ï´Ù.
Instantaneous ground-fault relays(50G) should be connected to core balanced (ground sensor) type current transformers for best results, although they can be used with conventional current transformers in a residual connection with relay 50N with good results on solidly groundded systems.
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