Fast Bus Transfer system or Synch Check
Fast Bus Transfer system or Synch Check
(OP)
A Critical 4KV Plant distribution bus is fed from 3 Sources Primary, Back up and Emergency.
Beckwith M04272 Motor bus transfer relay is used to set up automatically transfer between Primary & back up source.
Due to limited capacity of Emergency Source transfer between Primary (& or back up) and Emergency source is operator initiated manual in this case is there any compelling reason to use another M04272 or a simple Basler BE1-25 type Synch check relay to supervise manual transfer will be adequate?
Can anybody guide me in this decision?
Beckwith M04272 Motor bus transfer relay is used to set up automatically transfer between Primary & back up source.
Due to limited capacity of Emergency Source transfer between Primary (& or back up) and Emergency source is operator initiated manual in this case is there any compelling reason to use another M04272 or a simple Basler BE1-25 type Synch check relay to supervise manual transfer will be adequate?
Can anybody guide me in this decision?






RE: Fast Bus Transfer system or Synch Check
If changeover to Emergency source can be manual, I think the synchcheck relay should be adequate. In any case, I guess you would like to cut-off some feeders before transferring the board to emergency source and thus the same is not a fast one.