ML20024C527

Small Break LOCA in B&W 205 FA PWR, at t=0 & Pressure at 2,195 Psig.Sys Depressurizing

ML20024C527
Person / Time
Site:	Crane
Issue date:	07/11/1983
From:	GENERAL PUBLIC UTILITIES CORP.
To:
References
TASK-07, TASK-7, TASK-GB GPU-3116, NUDOCS 8307120752
Download: ML20024C527 (1)

Text

_-__

Small Broak LOCA in a B&W 205 FA PWR (1) i i

no Pilot operated Primary water steam

~

y y

=$

Wrelief valve (PORV)

Cy c

s i

' 88**ad*'Y * *'*'

p== 2195 psig J

pPDRV block valve h

r.

n k

.b

?

O A ~u.

3 n

- )3..y -

W 9f

)

g j

Ui fi D

Steam'to turbine h.

Steam to turb, e m

3 g

r/

t l

3 y

p I

il Pb Es' 4

Qe, l

N

@J.

\\

\\

1 g;

1 M

P

q l}

P) cs'

,3 0

q n

\\

m 1

i y

y es - 2s-n r t.:

g}'

s n i-R E

d:;:

W-p 2 s y l Pump s e Pump

.i T U

____"m f

B" (off) ae J. 34 (ogg) p 5 %

p; }' p;

~~-

i

.-_m r

n

$l 1 3 :; ;

w M

i.-

U n

t.

J4(

n 9

min 3

.,- 6 g;._.

z-i g

g l

h; t

m,_m, a,

u 7.

v. =

.c y

Mam ucmmu

, Letdown flow i

feedwater i

1 Cors'

/:a N l N Loop B Loop A 4, /,,n;-

• Initial condition - 100% power.

• At t = 0+ loss of offsite power, SCRAM and RC pump trip simultaneously with initiation of a very small break.

• System depressurizing.

.