the meaning of Operating cycle O-t-CO-t-CO for MV breaker
the meaning of Operating cycle O-t-CO-t-CO for MV breaker
(OP)
Hi all
I 'd like to ask the implied meaning of operating cycle "O-t-CO-t-CO" with t range from 0.3s to 3 min , how the difference for varying of the interval time (fast cycle/slow cycle).
Thanks all for your help..
PAP
I 'd like to ask the implied meaning of operating cycle "O-t-CO-t-CO" with t range from 0.3s to 3 min , how the difference for varying of the interval time (fast cycle/slow cycle).
Thanks all for your help..
PAP






RE: the meaning of Operating cycle O-t-CO-t-CO for MV breaker
A typical distribution reclosing cycle is O-.3s-CO-15s-CO. It is also not unusual to add another attempt to the reclosing cycle (e.g., O-0.3s-CO-15s-CO-45s-CO). The selection of dead times depends on a number of factors. For example, some interrupting devices have a lower than nameplate interrupt rating for non-standard reclosing cycles.
See IEEE Standard C37.010 for details