Sequence for restoring section of bus
Sequence for restoring section of bus
(OP)
For the sake of argument, a section of bus is removed from service. Breakers are opened, disconnect switches are open and associated ground switches are closed. When restoring this bus, i feel ground switches should be opened followed by the closure of the disconnect switches.Is there a standard for doing this? Disconnects or grounds. What's operated first?
Thanks for any help.
Thanks for any help.






RE: Sequence for restoring section of bus
RE: Sequence for restoring section of bus
I would actually want the ground switches interlocked with the disconnect switches. You can usually use a keyed interlock - one key 2 locks so only one switch can close at a time. It will keep you from closing into a short some day.