Hi folks,
This site has been very useful to support my studying for a desperately needed exam pass. My own training notes use this mnemonic to help remember lead/lag details: CIVIL. You probably have seen it but just in case not : in a Capacitive circuit, I (current) leads V which (itself) leads I in an inductive (L) circuit.
My problem is that I'm absolutely dreading the exam and would rather like to understand the thoery (as a backup) rather than just remember CIVIL.
I have read Vol2 CH3 AC Inductor circuits on this site, which has been a Godsend but it tells me (quote) 'Remember, the voltage dropped across an inductor is a reaction against the change in current through it'.
Surely this describes that the current must change BEFORE the voltage drops as a reaction, and that I leads V in an L circuit ?
This is probably all common knowledge to you guys but having been a nuts & bolts man for 30 years, the electric string stuff is not an easy conversion for me. I just cannot get any deeper into 3 phase AC generation till I understand this bit. If anyone can provide an explanation, it would help a lot, thanks.
This site has been very useful to support my studying for a desperately needed exam pass. My own training notes use this mnemonic to help remember lead/lag details: CIVIL. You probably have seen it but just in case not : in a Capacitive circuit, I (current) leads V which (itself) leads I in an inductive (L) circuit.
My problem is that I'm absolutely dreading the exam and would rather like to understand the thoery (as a backup) rather than just remember CIVIL.
I have read Vol2 CH3 AC Inductor circuits on this site, which has been a Godsend but it tells me (quote) 'Remember, the voltage dropped across an inductor is a reaction against the change in current through it'.
Surely this describes that the current must change BEFORE the voltage drops as a reaction, and that I leads V in an L circuit ?
This is probably all common knowledge to you guys but having been a nuts & bolts man for 30 years, the electric string stuff is not an easy conversion for me. I just cannot get any deeper into 3 phase AC generation till I understand this bit. If anyone can provide an explanation, it would help a lot, thanks.