GE 845 Instruction Manual page 404

CONTROL
4–300
Figure 4-130: Pushbuttons for breaker control
Local breaker selection using the Breaker Selector PB will last for 5min from the time of
selection, after which time, if no other breaker selection is made, all breakers will be
deselected. Any other subsequent press of the pushbutton deselects the previous breaker
and selects another breaker. A new time of 5min is applied when another breaker is
selected.
Figure 4-131: Breaker Control logic diagram – Part 1
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 4: SETPOINTS