You should have added a 52a contact in series with the 94 coil along with a NO contact of the 94 (in parallel with the 52a) itself for the full functioning of the Anti Pumping logic. (52a contact will ensure that the AP contactor will be picked up only after the CB successfully closes. 94's NO will ensure that the AP logic will still be in effect if the CB is closed on to a fault.)
Sir Apki video kaafi Jyaada motivation hoti h, lekin muje ye Hindi language m smjhna chaata hu. Can you translate the explanation of video in Hindi if you don't mind. Plzzz do appropriate help me I P Sir.
when the command is sent through TNC switch to the breaker closing coil at the same time AP relay is also energised from the same source, its NC will change to NO position the breaker will immediately trip..May be u missed the link?
You are wrong. It will never trip the CB while Close command is given via TNC switch (Ofcourse only if it's not closed onto fault). You might want to read up on the function of NC contact of 94 in the close path..
