ML20024C467
| ML20024C467 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 03/28/1979 |
| From: | GENERAL PUBLIC UTILITIES CORP. |
| To: | |
| References | |
| TASK-03, TASK-07, TASK-3, TASK-7, TASK-GB GPU-3100, NUDOCS 8307120654 | |
| Download: ML20024C467 (2) | |
Text
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Three Mile Island - March 28,1979 j
Pilst cperated
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1 relief valve (PORV) h Primary water O si am D
Opens at t== 0 (4 AM)
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l Safety 5 y (2255 psig)
Q secondary water p== 2150 psig valves PORV block valve l (Opens at ()
l 2450 psig Steam Generator e Steam Generator g
l Pressurizer i
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}+ Steam (to turbine) y g
}+ Steam (to turbine) g R
p Contrai reds l,.
i d
1 i$
t i
4 (Scram at
- r
-a Hot Leg S' 2
F Pump u-Pump 2355 psig) j lon) g r
t 4 Main ioni (220")
4 7 >
feed
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% g P (95'/. hg L.l..'.
water g;
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t u.m-mu
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reactor g
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Y 5l
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(50%
8 Makeup l
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sm gon y
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P Core '.
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k disc
+ Cold leg
.3 Reactor vessel w,o.
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3
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Iletdown flow Reactor coolant l
Loop A Loop B drain tank i
l I
l e initial conditions - system steady at 97% power operating conditions.
e At t= 0+, the main feedwater flow tripped.
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.