Why CT secondary are generally 5A? Why not use 1Amp? Just curious!!
R rozana81 Member Location keller, tx Jul 24, 2017 #1 Why CT secondary are generally 5A? Why not use 1Amp? Just curious!!
Jraef Moderator, OTD Staff member Location San Francisco Bay Area, CA, USA Occupation Electrical Engineer Jul 24, 2017 #2 People use 1A all the time, depends on what you are doing with it. But if you are driving an analog meter, having the entire range of motion (deflection) of the needle driven off of 1A total span makes for a high degree of inaccuracy.
People use 1A all the time, depends on what you are doing with it. But if you are driving an analog meter, having the entire range of motion (deflection) of the needle driven off of 1A total span makes for a high degree of inaccuracy.