I know to get 208 (or 240) you use 3-wire with a Line-to-Line (L1 & L2) connection.
If I would like to measure the current draw do I need a CT on L1 only or do I need a CT on L2 as well? Shouldn't the current on L1 be the same as the current on L2 but opposite in direction? How much current should be on the third wire? Should it be the sum of both, i.e. zero?
Thanks.
If I would like to measure the current draw do I need a CT on L1 only or do I need a CT on L2 as well? Shouldn't the current on L1 be the same as the current on L2 but opposite in direction? How much current should be on the third wire? Should it be the sum of both, i.e. zero?
Thanks.