Rated Duty Cycle of 15kV Vacuum Circuit Breakers
Rated Duty Cycle of 15kV Vacuum Circuit Breakers
(OP)
Guys can you help me with this?
We have a plant expansion and we encountered this Rated Duty Cycle (sequence of operation) difference between the existing and the new 15kV Vacuum Circuit Breakers that we are using as follows:
a.) O-0.3s-CO-15s-CO
b.) O-0.3s-CO-3min-CO
c.) O-3min-CO-3min-CO
What is the significance and application of each sequence?
Can you please refer us also a website where we can have a technical paper or information regarding this subject?
Thanks in advance :D
We have a plant expansion and we encountered this Rated Duty Cycle (sequence of operation) difference between the existing and the new 15kV Vacuum Circuit Breakers that we are using as follows:
a.) O-0.3s-CO-15s-CO
b.) O-0.3s-CO-3min-CO
c.) O-3min-CO-3min-CO
What is the significance and application of each sequence?
Can you please refer us also a website where we can have a technical paper or information regarding this subject?
Thanks in advance :D






RE: Rated Duty Cycle of 15kV Vacuum Circuit Breakers
This was discussed a while ago in:
thread238-135788
Failure seldom stops us, it is the fear for failure that stops us - Jack Lemmon
Make the best use of Eng-Tips.com
Read the Site Policies at FAQ731-376
RE: Rated Duty Cycle of 15kV Vacuum Circuit Breakers
If you are not using automatic reclosing, then the duty cycle is of no significance.