ML17250B127
| ML17250B127 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 04/09/1990 |
| From: | Widay J ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17250B096 | List:
|
| References | |
| FR-H.3, NUDOCS 9004200746 | |
| Download: ML17250B127 (7) | |
Text
FR-H.3
RESPONSE
TO STEAM GENERATOR HIGH LEVEL REV 2
PAGE 1 of 5 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER TECHNICAL REVIEW PORC REVIEW DATE T SUPERINTE DE T EFFECTIVE DATE QA NON-QA CATEGORY 1.0 REVIEWED BY:
G INNASTATION START:
9'000200yyh 9004LO-
, p
- DDCI( 050002yy i l PNu TIME:
EOP:
FR-H.3 TITLE:
RESPONSE
TO STEAM GENERATOR HIGH LEVEL REV:
2 PAGE 2 of 5 A.
PURPOSE This procedure provides actions to respond to a S/G high level condition and to address the S/G overfill concern.
B.
ENTRY CONDITIONS/SYMPTOMS 1.
ENTRY CONDITIONS This procedure is entered from:
a.
F-0.3, HEAT SINK Critical Safety Function Status Tree on a YELLOW condition, and b ~
FR H ~ 2 ~
RESPONSE
TO STEAM GENERATOR OVERPRESSURE g
if the affected S/G narrow range level is high.
EOP:
FR-H.3 TITLE:
RESPONSE
TO STEAM GENERATOR HIGH LEVEL REV 2
PAGE 3 of 5 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED CAUTION o
IP S/G NARROW RANGE LEVEL HAS INCREASED TO GREATER THAN 90X [85X ADVERSE CNMT], THEN AN EVALUATION SHOULD BE MADE FOR S/G OVERFILL CONSIDERATIONS.
STEAM SHOULD NOT BE RELEASED FROM ANY S/G WITH LEVEL GREATER THAN 90%
[85%
ADVERSE CNMT] PRIOR TO OVERFILL EVALUATION.
o IF S/G OVERFILL IS EXPECTED AN ATTEMPT SHOULD BE MADE TO DISPATCH PERSONNEL TO PIN MAIN STEAMLINES.
J NOTE:
o Throughout this procedure, "affected" refers to any S/G in which narrow range level is greater than 67X.
o Adverse CNMT values should be used whenever CNMT pressure is greater than 4 psig or CNMT radiation is greater than 10-
~ R/hr.
1 Identify Affected S/G(s):
a.
Narrow range level - GREATER THAN 67X
- a. IF less than 67X in all S/Gs, THEN return to procedure and step in effect.
2 Verify FW Isolation To Affected S/G(s):
a.
MFW pumps - TRIPPED b.
MPW flow control valve(s)-
CLOSED
~
MPW regulating valve(s)
~
MFW bypass valve(s) c.
MPW pump discharge valve(s)-
CLOSED
- a. Trip MFW pumps.
- b. Manually close valves.
- c. Manually close valves.
- d. Verify both S/G pressures-GREATER THAN CONDENSATE HEADER PRESSURE
- d. Stop any running condensate pumps.
EOP:
FR-H.3
RESPONSE
TO STEAM GENERATOR HIGH LEVEL REV:
2 PAGE 4 of 5 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 3
Close AFW And SAFW Flow Control Valves To Affected S/G (s):
o S/G A
~ MOV-4007 and AOV-4480, MDAFW pump
~ AOV-4297, TDAFW pump
~ MOV-9701A, SAFW pump o
S/G B
Stop pumps feeding affected S/G(s).
~ MOV-4008 and AOV-4481, MDAPW pump
~ AOV-4298, TDAFW pump
~ MOV-9701B, SAPW pump 4
Check Affected S/G(s)
Level:
- a. Narrow range level - LESS THAN 90X [85X adverse CNMT]
- b. Narrow range level - DECREASING
- c. Control APW flow to maintain narrow range level between 17X
[25X adverse CNMT] and 39%
- d. Return to procedure and step in effect a.
Go to Step 5.
b.
Go to Step 5.
5 Close Affected S/G TDAFW Pump Steam Supply Valve And Place In PULL STOP
~ S/G A, MOV-3505A
~ S/G B, MOV-3504A
EOP:
FR-H.3
RESPONSE
TO STEAM GENERATOR HIGH LEVEL REV:
2 PAGE 5 of 5 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 6
Close Affected S/G(s)
MSIV And Bypass Valves 7
Check Affected S/G(s)
Radiation Levels NORMAL
~ S/G blowdown, R-19
~ S/G A, R-31
~ S/G B, R-32 IF an E-3 or ECA-3 series procedure is in effect, THEN return to procedure and step in effect.
IF
- NOT, THEN go to E-3, STEAM GENERATOR TUBE RUPTURE, Step 1.
8 Establish Blowdown From Affected S/G(s):
- a. Reset SI and CI
- b. Reset XY relays for affected S/G blowdown valves
- c. Place blowdown key switch for affected S/G to defeat
- d. Verify S/G blowdown valves-OPEN
- e. Dispatch AO to establish blowdown to condenser or flash
- tank, as desired (Refer to T-14F, STEAM GENERATOR BLOWDOWN SYSTEM STARTUP) 9 Return To Procedure And Step In Effect
-END-
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