Read up about full wave and half wave rectification, that should help you understand why sometimes the transformer secondary is not grounded. Sometimes it is the installer being lazy
Originally Posted by dav214
Also note that if the primary voltage is above a certain voltage the National Electrical code at least in the USA requires that the secondary is grounded.
Sent from my GT-P5113 using Tapatalk HD
Last edited by klrogers; 07-14-2013 at 05:11 PM.
"There are 10 types of people in the world.. those who understand binary, and those who don't."