Sep 23, 2007 #1 camo1978 Electrical Jul 22, 2005 10 0 0 AU If a CT has name plate Kneepoint of 750Volts. Should the measured (actual) value be Higher or lower than this figure and what is the tolerance ie 5%,10% etc Thanks in advane
If a CT has name plate Kneepoint of 750Volts. Should the measured (actual) value be Higher or lower than this figure and what is the tolerance ie 5%,10% etc Thanks in advane
Sep 24, 2007 #2 scottf Electrical May 28, 2002 1,002 0 36 US Measured should be higher. Normally it's stated as Vkp >= 750V (for example). There is no tolerance per se...higher is better. Upvote 0 Downvote
Measured should be higher. Normally it's stated as Vkp >= 750V (for example). There is no tolerance per se...higher is better.
Sep 25, 2007 #3 ukzn Electrical Jan 15, 2007 9 0 0 ZA the rating on the side of the CT is the Minimum value that you should obtain. It also should correspond with the formula to calculate Vkp= S/(Ns*ALF) " THINK BIG " Upvote 0 Downvote
the rating on the side of the CT is the Minimum value that you should obtain. It also should correspond with the formula to calculate Vkp= S/(Ns*ALF) " THINK BIG "
