degraded electrical power

what are the actions required on a loss of PBA-S03 (or S04)

a loss of PBA or B for 90 minutes requires all parameters on channel A or C (or B or D) to be bypassed that are nor bypassed on channels B or D (or A or C)

how are PK batteries affected by a PB loss

loss of PB results in a loss of chargers, batteries are only rated for 2 hours

if you have a LOP and the DG breaker fails to close what actions are taken?

ensure DG is running at rated speed and voltage,

ensure alternate and normal breaker are open with no lockouts on the bus

check DG lockout relay is not actuated

how are the Foxboro controllers affected by a loss of power? how are they affected when power is restored? 

loss of power, controller fails with no output 

when power is restored controller comes back in manual with zero output 

what is required prior to restoring power to NGN-L45?

coordinate with central maintenance before re-energizing to prevent machine shop equipment from inadvertently starting