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3.       Four MCP Loss of Power

We conducted this analysis by tripping all 4 MCP's.  The pressurizer pressure set point was reset to 150 bar after reactor scram.  Since the MCP's are not running, the normal spray cannot be used.  The auxiliary spray is manually started to reduce the pressure.  No other manual actions were taken.  SG-3 BRU-A should have been disabled according to the sequence of events.  But the outcome would have not much difference. 

mcp2


m4
m6
m8
m10
m12
m14

 

m16
m18
m20
m22
m24
m26
m28
m30

m32
m34

m36

m38
m40
m42
m44
m46

 

m48

m50
m52
m54

m56
m58

 

m60
m62

 

m64
m66