ML17250B299
| ML17250B299 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 06/16/1993 |
| From: | ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17250B293 | List: |
| References | |
| FR-H.3, NUDOCS 9307080223 | |
| Download: ML17250B299 (14) | |
Text
EOP:
FR-H.3
RESPONSE
TO STEAM GENERATOR HIGH LEVEL REV:
3 PAGE 1 of 7 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER TECHNICAL REVIEW PORC REVIEW DATE 5 IL'"4~
P T SUPERINTENDENT EFFECTIVE DATE CATEGORY 1.0 REVIEWED BY:
9307080223 930628 PDR ADQCK 05000244
'~P PDR
EOP:
FR-H.3 TITLE:
RESPONSE
TO STEAM GENERATOR HIGH LEVEL REV:
3 PAGE 2 of 7 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 l.
ENTRY CONDITIONS This procedure is entered from:
a.
'F-0.3, HEAT SINK Critical Safety Function Status Tree on a YELLOW condition, and FR H 2 g
RESPONSE
TO STEAM GENERATOR OVERPRESSURE g
if the affected S/G narrow range level is high.
I 0
EOP:
FR-H.3 T1TLE:
RESPONSE
TO STEAM GENERATOR HIGH LEVEL REV:
3 PAGE 3 of 7 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED CAUTION o
IF S/G NARROW RANGE LEVEL HAS INCREASED TO GREATER THAN 90%
[85% 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.
IF S/G OVERFILL IS EXPECTED AN ATTEMPT SHOULD BE MADE TO DISPATCH PERSONNEL TO PIN MAIN STEAMLINES.
NOTE:
o Throughout this procedure, "affected" refers to any S/G in which narrow range level is greater than 67%.
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 Check Affected S/G(s)
Narrow Range Level GREATER THAN 674 IF less than 67% in all S/Gs, THEN return'o procedure and step in effect.
2 Verify FW Isolation To Affected S/G(s):
a.
MFW pumps
- TRIPPED b.
MFW flow control valve(s)
CLOSED
,a. Trip MFW pumps.
- b. Manually close valves.
~ MFW regulating valve(s)
~ MFW bypass valve(s)
- c. Verify both S/G pressures GREATER THAN CONDENSATE HEADER PRESSURE c.
Stop any running condensate pumps.
0
~
EOP:
FR-H.3
RESPONSE
TO STEAM GENERATOR HIGH LEVEL REV' PAGE 4 of 7 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
~ MOV-4008 and AOV-4481, MDAFW pump
~ AOV-4298, TDAFW pump
~ MOV-9701B, SAFW pump Stop pumps feeding affected S/G(s).
0
EOP:
FR-H.3
RESPONSE
TO STEAN GENERATOR HIGH LEVEL REV:
3 PAGE 5 of 7 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 4 Check Affected S/G(s)
Level:
a.
Narrow range level
- LESS THAN 90%
[85% adverse CNMT]
- b. Narrow range level - DECREASING a.
Go to Step 5.
- b. IF affected S/G level continues to increase, THEN perform the following:
- 1) Dispatch AO to locally isolate affected S/G:
o For S/G A, close MFW regulating and bypass valve outlet isolation
- valves, V-3987 and V-3991
-OR-o For S/G B, close MFW regulating and bypass valve outlet isolation
- valves, V-3986 and V-3990
- c. Control AFW flow to maintain narrow range level between 17%
[25% adverse CNMT] and 39%
- d. Return to procedure and step in effect 2)
Go to Step 5.
EOP:
FR-H.3 RESP9NSE TO STEAM GENERATOR HIGH LEVEL REV:
3 PAGE 6 of 7 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 5 Adjust Affected S/G(s)
ARV Setpoint To 1050 PSIG 6 Close Affected S/G TDAFW Pump Steam Supply Valve And Place In PULL STOP
~ S/G A, MOV-3505A
~ S/G B, MOV-3504A 7 Close Affected S/G(s)
MSIV And Bypass Valves 8
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.
9 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)
EOP:
FR-H.3
RESPONSE
TO STEAM GENERATOR HIGH LEVEL REV:
3 PAGE 7 of 7 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 10 Return To Procedure And Step In Effect
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