A2 Home | Contact us

 

Steam Generator Tube Rupture

 

s2

At 900 second PCTRAN run manual trip the reactor and reactor coolant pumps, lock closed TBV, disable pressurizer heaters, charging pump and close letdown valve.

At 1,200 seconds close both MSIV’s

At 1,500 seconds lock open ruptured side MSRV and intact side MSDV ECCS starts automatically shortly after.

Ruptured side MSRV isolated at pressure about 700 psia.

At 2,717 seconds open pressurizer SDV, close it soon after.

 

s4
s6
s8
s10
s12
s14
s16
s18
s20
s22
s24
s26
a28
s30
s32
s34
s36

s38