ML19331C787
| ML19331C787 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 08/07/1980 |
| From: | Public Service Enterprise Group |
| To: | |
| Shared Package | |
| ML18082A922 | List: |
| References | |
| 90.5, NUDOCS 8008190546 | |
| Download: ML19331C787 (18) | |
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d STARTUP PROCEOUL 90.5 Rev. 2 NATURAL CIRCULATION AT FIOUCED PRESSURE 9
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s 800819054b SUP 90.5 Rev. 2 Salem Unit 2
s STARTUP PROCEDURE 90. 5 R vr . 2 l
1.0 OBJECTIVES 1.1 Verify the capability to maintain Natural Circulation at reduced RCS pressures.
t 1.2 verify the accuracy of the saturation meter indication as provided by the
. P-250.
1.3 Provide operational experience with control of saturation margin at reduced margins by use of primary charging flow and secondary steam flow.
1.4 To provide operator training in control of saturation margin under Natural Circulation.
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SUP 90.5 l
Rev. 2 Salem Unit 2
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3.0 REFERENCES
2.1 Westinghouse precautions limitations and setpoints, Rev. 7, August 1979.
2.2 SUP 90.0, special Tests Sequence Document 2.3 operating Instructions 2.3.1 OI II-1.3.1 "RCP Operation" 2.3.2 EI I-4.9 " Blackout" s
e SUP 90.5 Rev. 2 Salem Unit 2 .
3.0 PEREQUISITES 3.1 The low power physics measurement program (SUP's 80.3, 80.4, 80.5, and 80.6) is complete.
3.2 Brush recorders are connected per section 8;0.
3.3 The P-250 computer T/W trend is monitoring the parameters listed in Appendix A.
3.4 The reactivity computer / recorder is operating recording flux reactivity, and loop wide range temperatures per para. 8.3 of this procedure.
3.5 Automatic actuation of Safety Injection has been blocked per SUP 90.0, App. A (ref. 2.2) 3.6 The input logic of steam line AP S.I. actuation has been blocked per SUP 90.0, App. A (ref. 2.2) 3.7 The input logic of high steam flow, coincident with low steam line pressure or low-low T,y is modified per SUP 90.0 App. A (ref. 2.2) 3.8 The test engineer has conducted briefings for all personnel involved in the con-duct of the test.
39 Station QA has been nofified of the start of this test.
3.10 The special operator instructions given in SUP 90.0, section 9.1.4 have been posted conspicuously in the control room.
s 3.11 The S/G lo-lo and lo level reactor trip setpoints have been reset to 54.
3.12 The NIS power range hi-level, low range trip setpoint (normally 25%) has been reset to .583 volts and the intermediate range high flux setpoint has been reset to 28 ua (equivalent to 7% reactor power) .
SUP 90.5 Salem Unit 2 Rev. 2
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4.0 INITIAL CCNDITIONS 4.1 The reactor is critical at approximately 34 power as determined by the incere flux mapping system.
4.2 The rod control system is in Manual Control with Control Bank D at approximately 160 steps or as specified by Reactor Test Engineer (in Bank D select) .
4.3 All four RCP's are in operation, unless branching option from SUP 90.1 is utilized.
4.4 Steam Generator Level is maintained at approximatsly 33% (N.R.) using Auxiliary Feedwater Pumps.
4.5 Pressurizer pressure is maintained at about 2235 psig with heaters and spray in Automatic.
4.6 Pressurizer Level is maintained about 26% with charging flow controlled manually.
(34% if branching from SUP 90.1 is utilized.)
4.7 RCS average temperature T,y is 547*F 1 1*T (if branching from SUP 90.1 on natural circulation, T,y will be at about 570*r) 4.8 Steam Generator pressure is being maintained at about 1005 psig by steam dc=p to the condenser in the steam pressure mode of control (preferable) or by atmospheric steam dump (alternate) .
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5.0 ENVIRONENTAL CONDITIONS 5.1 Atmospheric steam dump may be required during the performance of this procedure.
4 6.0 ACCEPTANCE CRITERIA 6.1 Natural Circulation can be maintained at reduced RCS pressure in all four reactor coolant loops.
6.2
- Operator action points of SUP 90.0, section 9.1.4.1 is maintained throughout the test.
6.3 The saturation recorder is in agreement with margins calculated from recorded plant parameters using steam tables to within 34.
s 6.4 As many SRO's and RO's (licensed en Unit 42) as practical participate in or observe this test.
j SCP 90.5 Rev. 2
-5 Salem Unit 2
7.0 SPECIAL TEST EQUIPMENT 7.1 Three Brush 260 (or equivalent) chart recorders, connected per section 8.0.
N Cal. Date Recorder No. Sf_N 1
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3 7.2 Westinghouse reactivity computer Cal. Date Recorder No. Q 1
2 3
4 5
7.3 Chronometer or stopwatch s
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i SUP 90.5 Rev. 2
-6 Salem Unit 2
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8.0 DATA COLLEC" ION B.1 All data acquired as a result of performance of this procedure shall he recorded at the appropriate step, or attached data sheets, or affixed as appropriate.
8.2 Recorder data points. Mark each chart with test No. , Date, Time, Recorder Number, Chart Speed.
Range 8.2.1 Recorder No.1 Inst. Parameter FT-414 RCS Loop Flow 21 0-10% flow Channel No. 1 Channel No. 2 FT-424 RCS Loop Flow 22 0-104 flow Channel No. 3 FT-434 RCS Loop Flow 23 ,
0-10n flow Channel No. 4 FT-444 RCS Loop Flow 24 0-10t flow Pressurizer Pressure 1600-2400 psig Channel No. 5 PT-474 LT-461 Pressurizer Level 0-1004 Channel No. 6 Parameter Range 8.2.2 Recorder No. 2 ' Inst .
FA-1087 Aux. Feed Flow 0-300 gpm Channel No. 1 to S/G 21 LT-517 S/G 21 Level 0-1004 Channel No. 2 700-1200 psig l
Channel No. 3 PT-516 S/G 21 Pressure 0-300 gym Channel No. 4 FA-1091 Aux. Feed Flow to S/G 22 LT-527 S/G 22 Level 0-1004 Channel No. 5 700-1200 psig Channel No. 6 PT-526 S/G 22 Pressure Parameter Range C.2.3 Recorder No. 3 Inst.
0-300 gym Channel No. 1 FA-1095 Aux. Feed Flow
, to S/G 23 LT-537 S/G 23 Level 0-1004 Channel No. 2 700-1200 psig Channel No. 3 PT-536 S/G 23 Pressure 0-300 gym Channel No. 4 FA-1097 Aux. Feed Flow to S/G 23 LT-547 S/G 24 Level 0-1004 Channel No. 5 S/G 24 Pressure 700-1200 psig Channel No. 6 PT-546 8.3 Reactivity Computer Chart Recorders 8.3.1 Recorder 91 Channel A p-computer output Channel B N-41 excore detector current 8.3.2 Recorder 42 Channel A Loop 21 Tg TE 413 B 510-610*F Channel B Loop 21 Th TE 413 A 510-610'F B.3.3 Recorder 63 Channel A Loop 22 T, TE 423 B 510-610*F Channel B Loop 22 Th A 0-610*F SUP 90.5 Rev. 2 Salem Unit 2 s
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8.3.4 Recorder 84 Channel A Loop 23 T, TE 433 B 510-610*F Channel B Loop 23 Th TE 433 A 510-610*F 8.3.5 Recorder #5 Channel A Loop 24 Te TE 443 B 510-610*F Channel B Loop 24 Th TE 443 A 510-610*F 8.4 Copies of the reactivity computer trace and saturation meter recorder will be marked and attached as data.
8.5 P-250 trend typewriter data covering the duration of this test will be attached.
(see Appendix A for data points) 8.6 P-250 computer printouts of the incore thermocouple maps taken during the performance of the test will be attached.
B.7 P-250 computer printouts of the single pass partial core maps used during the test for core power determination will be attached as data.
8.8 A record licensed operators participating and observing this test is documenced on Appendix B.
8.9 Data acquisition steps need not be repeated for multiple test performances done for training proposes. Place NA on the initial lines for these steps.
However, flux map and incore T/C map printouts shall be taken during training runs, and shall be marked as training runs. It is recommended that the test engineer leave all other data acquisition systems (e.g. reactivity computer recorder) operating during the training runs as well.
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-g. Rev. 2 Salem Unit 2 i
9.0 P RECAUTIONS 9.1 Observe the precautions, ILmitations, and special operator instructions given
- SUP 90.0, sections 9.3 and 10.3. (ref. 2.2) 9.2 When RCS pressure drops below P-11, (1915 psig) manually block SI or the reactor will trip when the setpoint (1765 psig) is reached. Also, close the PORV block valves.
9.3 When RCS temperature is reduced to maintain the saturation margin, maintain TCabove 531*F.
9.4 This test should be performed concurrently with SUP 90.3 (natural circulation with loss of pressurizer heaters) and they should be performed as few times as practical. This limitation is imposed because of the reduced saturation tempera-ture margin experienced during these tests.
9.5 The Operator Action poir.ts of SUP 90.0, paragraph 9.1.4.1 are maintained through-out the test.
s SUP 90.5 Rev. 2 Salem Unit 2
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10.0 INST.tUCTICKS 10.1 secure the pressurizer back-up heater groups 21 and 22 by pressing the MAN pushbuttons and CFF pushbuttons on their respective bezels at the main control condole.
10.2 start the P-250 T/W trend printing the points specified in Appendix A.
b 10.3 start the irush recorders on high speed (125 =m/ min.)
10.4 Turn of f the pressurizer heater control group, by depressing the CFF pushbutton on its bezel at the main control console.
10.5 Stop all four reactor coolant pumps simultaneously.
10.6 VerifybaturalCirculationisestablished.
NOTE: Expected plant response is as follows:
Wide range TH - nerease to approximate 590'T Wide range Tg - approximately constand Incore T/C's - increase to approximate 590*F pressurizer Level - increase to approximate 35%
Natural Circulation will be stable when:
Incore thermocouples and loop wide range TH '#'
and approximately equal.
' ST between wide rangeHT and CT is constant steam Generator levels are steady or varying slowly with constant feed.
10.7 Maintain pressurizer level approximately constant after equilibrium conditions are reached by adjusiing charging flow to match letdown and seal leak off.
NOTE: Maintain RCP Seal Injection flow per operating instructicn OI II-1.3.1 "RCP Operation".
10.8 Cnce equilibrium is established adjust Brush Chart Recorder speeds as directed by the Tast Engineer.
10.9 cbeain incore T/C map and determine power using one pass flux map.
NOTE If branching from SUP 90.1 on continued natural circulation, steps 10.1 and 10.3 above must be performed at this point to continue the test.
SUP 90.5 Rev. 2 salem Unit 2
NOTE: If desired, deprOO:urizction rcto can be incrocssd using cuxiliary spray. How3vor, if this test is being run concurrently with SUP 90.3, do not use auxiliary spray, as this would disturb that SUP's performance.
10.10 Continue to monitor the incere T/C temperature and record the highest valid reading every two minutes in data sheet 1 from the digital trend also record the Icwest pres-surizer pressure reading from among the four pressure channels, frem digital trend.
Record the hottest wide range loop RTD temperature from the digital trend in data sheet 1.
NOTE: Block low pressure SI and close PORV block valve when pressure decreases to the P-11 setpoint (1915 psig)
NOTE: Use vide range pressure PI-405 if pressure is decreased below the range of the narrow range instrument (1700 psig) 10.11 Use the steam' tables to determine the saturation margin expressed in degrees Fahren-heit, and record in data sheet 1. Also record in the space provided the saturation Tsat -
margin as calculated by the P-250 at the time data is recorded for step 10.10.
Hi T/C = SAT Meter + 3*F Reading 10.12 When the Test Engineer is satisfied that enough data has been obtained to meet the objective of this test, increase the saturation margin to 50*F using steam dc=p and/or charging flow.
NOTE: Do not exceed 70% pressurizer level.
10.13 At this time, a preliminary evaluation of the accuracy of the saturatien meter should be done to determine if the display is within 3% of the margin as calculated from steam tables. Reprogramming of the P-250 may be required if this criterion is not met.
10.14 Restore RCS pressure to 2235 psig by energizing pressurizer backup heater groups. Place pressurizer pressure heater control group back to AUTO.
NOTE: Open the PORV block valve closed in step 10.10 above. Avoid overpressurizing, use auxiliary spray if necessary.
10.15 Shutdown the reactor by inserting control bank D to zero steps (rod control in Bank D select).
10.16 Restart all four reactor coolant pumps per OI 1.3.1, "RCP Operation" (reference 2.3.1)
. beginning with loop 23.
10.17 Restore pressurizer level to approximately 22% and return pressurizer level control to automatic.
10.18 Restore to normal the reactor protection system modified per prerequisit .,3.5, 3.6, and 3.7 unless further testing is required. In this case, N/A the step and proceed establish initial conditions for the next test.
SUP 90.5 Salem Unit 2 _11 Rev 2
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10.19 Record the names of licensed operators (RO's and SRO's) participating in or observing the test in Appendix B, as appropriate.
10.20 Retrieve and attach recorder traces, P-250 printouts per paragraph 8.2-8.8 (see also para. s.8)
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i SUP 90.5 1
Rev.2 Salem Unit 2
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11.0 TEST COMPLETION 11.1 Conunents 1
11.2 Changes to SPM 11.3 Signature I
r Test Engineer Date J
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Senior Shift Supervisor / Shift Supervisor Date Quality Assurance Date s
' Shift Technical Advisor Date 1
i SUP 90.5 Rev. 2 Salem Unit 2 -13
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T/ C DATA sHIET 1 MARGIN MARGIN Hi W.R (per steam tables) (per SAT. meter)
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i SUP 90.5 Rev. 2 Salem Unit 2 l
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- e APPENDIX A P-250 Digital Trend Parameters Computer Point I Parameter Pressurizer Pressure Channel 1 P0480A Pressurizer Level Channel 1 LO480A RCS Loop 11 Hot Leg Temperature T0419A RCS Loop 21 Cold Leg Temperature T0406A RCS Loop 22 Hot Leg Temperature T0439A RCS Loop 22 Cold Lag Temperature T0426A RCS Loop 23 Hot Leg Temperature T0459A RCS Loop 23 Cold Leg Temperature T0446A RCS Loop 24 Hot Leg Temperature T0479A RCS Loop 24 Cold Leg Temperature T0466A Steam Generator 21 Pressure PO400A Steam Generator 21 Narrow Range Level LO400A Steam Generator 22 Pressure P0420A Steam Generator 22 Narrow Range Level LO420A Steam Generator 23 Pressure P0440A Steam Generator 23 Narrow Range Level LO440A Steam Generator 24 Pressure PO460A
' Steam Generator ?4 *4rrow Range Level LO460A Power Range Channel 1 (Quadrant 1) N0049A Power Range Channel 2 (Quadrant 2) N0050A Power Range Channel 3 (Quadrant 3) N0051A Power Range Channel 4 (Quadrant 4) N0052A Hottest Incore Thermocouple U0090A Pressurizer Surge Lipe Temperature T0482A Pressurizer Pressure Channel II Pressurizer Pressure Channel III NOTE: At the discretion of the Test Engineer, a redundant computer point may be substituted where available.
Calculated Margin to Saturation conditions SUP 90.5 Rev. 2 Salam Unit 2
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APPENDZX B SR0's Participating In Test SRO's Observing Test s
SLT 90.5 Rev. 2 Salem Unit 2
APPENDIX B (cont.)
RO's Participating In Test 4
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RO's Observing Test I
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! QA Review I
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l st:P 90.5 Rev. 2
-17 Salem Unit 2
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