ML20141N180

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Rev 0 to Procedure GOP-OLC-001.00, Operator Licensed Candidate Abnormal Operating Procedures,Loss of Nni Power AB 1203.41
ML20141N180
Person / Time
Site: Davis Besse Cleveland Electric icon.png
Issue date: 12/31/1985
From: Gavioli M
TOLEDO EDISON CO.
To:
Shared Package
ML20141N145 List:
References
GOP-OLC-001.00, GOP-OLC-1.00, TAC-61015, NUDOCS 8603040454
Download: ML20141N180 (19)
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Text

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GOP-OLC-001.00 Attachment 41 Program

Title:

OPERATOR LICENSED CANDIDATE Course

Title:

PROCEDURES NORMAL, ABNORMAL, and EMERGENCY 

,          Lesson

Title:

ABNCRMAL OPERATING PROCEDURES Approximate Time: Revision No.: 00 "" - Date: 8510 Resource Materials for the Instructor: Job Aids: Applicable Abnormal Procedure Audio / Visual Equipment Needed: Overhead Projector , List of Transparencies: Equipment / Tools: N/A Safety Requirements: N/A Instructional Settina: Classroom Student Materials: Pen or Pencil, Paper, Handout Special Considerations: N/A Instructor

References:

AD 1828.10, AD 1805.00, AB 1203, Reg Guide 1, 33 10 CFR 50, Technical Specifications Student

References:

AB 1203 Applicable i 1 l 1 of 14

LOSS OF NNI POWER AB 1203.41 GOP-OLC-001.00 Attachment 41 OBJECTIVE. OBJECTIVE TEXT NUMBER 0 UPON SUCCESSFUL COMPLETION OF START-UP TRAINING, THE REACTOR OPERATORS AND SENIOR REACTOR OPERATORS WILL BE ABLE TO PROPERLY APPL'.' THE ABNORMAL PROCEDURES NECESSARY FOR PROPER TASK PERFORMANCE. 1 00 THE FOLLOWING ENABLING OBJECTIVES ASSOCIATED WITH THIS LESSON PLAN ARE DESIGNED TO SUPPORE THE " KNOWLEDGE" 

;                       REQUIREMENTS FOR TE ABOVE TERMINAL OBJECTIVE.

000 TE TRAINEE, WITHOUT REFERENCES (UNLESS OTHERWISE SPECIFIED), ACCORIDNG TO APPROVED PROCEDURES, WILL BE ABLE TO: 01 GIVEN SPECIFIC SYMPTOMS, CORRECTLY RECOGNIZE THE APPLICABLE ABNORMAL PROCEDURE. 02 LIST / STATE THE FINAL PLANT CONDITION THAT THE ABNORMAL PROCEDURE DIRECTS THE PLANT TO BE PLACED IN. 03 RECALL / IDENTIFY THE PLANT EQUIPMENT / SYSTEMS AVAILBLE TO , TE OPERATOR DURING THE PERFORMANCE OF THE ABNORMAL

PROCEDURE.

04 LIST / STATE THE FINAL CONDITION OF SELECTED PLANT SYSTEM, WHEN THE ABNORMAL PROCEDURE IS COMPLETE. 05 WHEN PROVIDED WITH A SPECIFIC NOTE AND/OR CAUTION, CORRECTLY LIST / STATE TE REASON FOR TE NOTE AFJ/OR CAUTION. 06 LIST / STATE TE EMERGENCY ACTION LEVEL THE STATION / SITE IS IN WHEN TE ABNORMAL PROCEDURE IS: ENTERED, IN I PROGRESS, COMPLETED (SRO ONLY). 07 BRIEFLY DESCRIBE TE ACTION (S) THAT EACH INDIVIDUAL I3 DIRECTED TO PERFORM, IN ACCORDANCE WITH THE ABNORMAL PROCEDURE (SRO ONLY - ALL INDIVIDUALS ACTIONS). l 2 of 14 1

a LOSS OF NNI POWER AB 1203.41 GOP-OLC-001.00 Attachment 41

1.0 INTRODUCTION

The intent of this lesson is to introduce / review the Loss of TP-1 NNI Power Abnormal Procedure. The material (s) that you are responsible for is/are stated in the objectives for this lesson. 2.0 PRESENTATION A. Symptoms that indicate entrance into this abnormal procedure is/are dependent upon the NNI Power Supply that is lost. This procedure is subdivided into the following:

1. Loss of NNI Y AC TP-2
2. Loss of NNI Y DC
3. Loss of NNI X AC
4. Loss of NNI X DC B. The initial Plant Conditions assumed are as follows: ,
1. The plant is operating at 100% power.
2. The NNI's are in the preferred switch lineup as specified in SP 1105.06 NNI Operating Procedure.

NOTE: If power is less than 100% at the time, NNI Power is lost, or if the switch lineup is other than the normal preferred lineup, the plant transient may be different than predicted and indications which are unreliable will be different than predicted. The actions of this procedure for recovery and control are still valid and unchanged even if in an abnormal switch lineup. NOTE: SFRCS is not actuated by this A.B.; EP1202.01 Section 4.3 directs SFRCS actuation. Addendum 1 , C. Loss of NNI Y AC Power

1. Symptoms
a. The following Annunciator Alarms: Obj. #1 (1) ICS/NNI 118 VAC Pwr Trbl 3 of 14

a LOSS OF NNI POWER AB 1203.41 GOP-OLC-001.00 Attachment 41 (2) ' Low Level and Low Pressure for each Core Flood Tank powered from Y.

b. Loss of Y AC NNI power indicating light Turbo-Genrrator on Control Room Panel C-5722 Panel
c. Zero volts indicated on uninterruptible iostrument busses YAU and YAB i
d. Computer point Q697-NNI Y 118 VAC Pwr TRBL
e. All Y indicators fail toward, but not necessarily at, center scale concurrent with loss of Y AC NNI power indicating light. With only failed indicators refer to AP 3014.01 ICS/NNI blown fuse.
f. On all Y recorders, the pen fails "as is" and paper motion stops.
2. Automatic Actions
a. Plant Response - No plant transient Obj #3
b. Inoperable Automatic Functions (1) Loss of High MU Flow Alarm (2) Steam Gener1 tor Pressure - Fails to Inputs to 600 psig - (no effect input used only By pass valves when turbine is tripped) AVVs i (3) Start Up Flow - Loop 1 Temperature compensated (No effect unless the main FW block is shut)

(4) Loop 2 Main FW Valve AP signal to the ICS fails to 50 psid (no effect - other loop will control)

3. Operator Actions
a. Transfer both S.G. Pressure Selectors to Details of X power (HSSP 12A and HSSP 128) actions are Given in AB.

TP-3

b. Transfer Loop 2 F.W. Valve AP to X power TP-4 (HSSPSA)
4 of 14 i

LOSS.0F NNI POWER AB 1203.41~ 

                                                      ~

GOP-OLC-001.00 Attachment 41

c. Initiate actions to regain'NNI Y AC' power.
d. If NNI power is not restored and a plant trip or shutdown is_in progress, then:

(1) If NU6 was open, then close NU 85. (Reduces letdown flow) (2) If increased letdown flow is necessary, throttle NU-83 (3) If the batch controller counter, or its flow computer point is available then use it to monitor BA pump flow. (4) If not, control RA flow using MU 23 or have an operator throttle MU 366 (5) Place the Loop 1 NFW block valve control switch in "open" (NIS 780) (6) If level control is unsatisfactory, close the block valve (FW 780) and control level with the start up valve.

c. If cooldown to col.d shutdown is required, follow PP 1102.10
1. Use DH Train 2 due to loss of all temperature indication and valve control for DH Train 1.

D. Loss of NNI Y DC Power

1. Symptoms
a. Loss of Y DC NNI power indicating light Obj #1 on Control Room Panel C-5722 Turbo-Generator Panel
b. NNI 24 VDC Bus Trip Annunciator Alarm
c. Computer Point Q716 - NNI Y DC Bus Trip,
d. All indicators and recorders displaying Y signals will~ fail toward, but not necessarily at center scale, i

I 5 of 14 l i

i LOSS OF 10i1 POWER AB 1203.41 GOP-OLC-001.00 Attachment 41

2. Automatic Actions
a. Plant Response - Possible underfeed of Obj #3 Steam Generators due to:

(1) Low Tavg - Rod withdrawl 570* - 575' (2) Low Td - BTU Limits 582* - 595'F If signals are supplying ICS

b. Inoperable Automatic Functions (1) The following . alarms are inoper.able:

Loop 1 High and Low RC Pressure HPI Pump 1-1 High and Low Flow DH/LPI Pump 1-1 High and low F. low (2) Loop 2 Steam Generator Pressure Input SG Safeties to ICS fails to 600 PSI (No effect input used only when turbine is tripped) (3) Loop 1 S/U Feedwater Flow Signal fails to center scale. (No effect input used when main block valve is shut).

3. Operator Actions Details of actions are
a. Transfer Tavg Auto / Manual Transfer switch given in AB to Loop 2 (HSRC7) TP-5
b. Transfer selected output temperature TP-5 selector to Loop 2 (HSRC3)
c. Transfer both S.G. Pressure selectors TP-6 to X Power (HSSP 12A and HSSP 128)
d. Transfer Loop 2 FW valve AP to X power TP-7 (HSSP SA).
e. Initiate Actions to regain NNI Y DC Power, 6 of 14

LOSS OF NNI POWER AB 1203.41' 00P-OLC-001.00 Attachment 41

f. If NNI Y DC is not restored and a plant trip or shutdown is in progress, then:

(1) H the Batch Controller Counter or its flow computer point is available then use it to monitor B.A. pump flow. (2) If not, control B.A. flow using MU 23 or have an operator throttle MU 36.

g. Place the loop 1 NW block valve in open (HIS 780)
h. g level control is unsatisfactory, close block valve (W -780) and control level with the startup valve.
i. If cooldown to cold shutdown is required, follow PP 1102.10.

(1) Use DH train 2 due to loss of all temperature indication for DH Train 1. CAUTION: Reenergizing NNI Y DC can cause a feedwater Obj. #5 transient if W demand stations are in Auto prior TP-8 to reenergizing place FW demand H/A in manual. E. Loss of NNI X AC Power .

1. Symptoms Obj. #1
a. The following Annunciators Alare:

(1) ICS/NNI 118 VAC Pwr Trbi (2) Low Level and Low Pressure for each core flood tank powered from X

b. Loss of X AC NNI power indicating light on Turbo-Generator control room panel C-5722 Panel
c. Zero volts indicated on uninterruptible '

instrument Busses YBU and YAU

d. Computer point Q696 NNI X 118 VAC PWR TRBL.

k 7 of 14 

                                                                                                                  -{

, LOSS OF NNI POWER AB 1203.41 GOP-OLC-001.00 ,

Attachment 41 ,

r i

e. All X powered indicators fail toward, but not  !

L necessarily at, center scale concurrent with }. loss of X AC NNI power indicating light. With i only failed indicators refer to AP 3014.01 ' , ICS/NNI blown fuse. l

f. On all X recorders, the pen fails "as is" and
paper motion stops, j
2. Automatic Actions
a. Plant Response - Rea *.or Trip on High RCS Obj. #3

{ pressure due to' l

  • ICS Tave fails to 570*F-Rod Withdrawal.
  • Felected Turbine Header Pressure Header Pressure signal fails to 900 psig - kicker also causes Turbine continuously picks up load
FW & Ra demand '

decrease. 

!
  • Loop and selected TH signals fail 3 l to 570*F - BTU Limit on Feedwater  ;

h ! (1) Possible loss of pressurizer level due Normal Position i to NU-32 failing "as is"

  • 25% open i

(2) Possible SFRCS actuation on low level j 

;                                              -S/U range level signal to'ICS fails at 1

center scale. ' 

;                                                                                                                    i 1

(3) Possible SFAS actuation due to NU 32 l failing and overcooling due to SFRCS ' j actuation.  : i

b. Inoperable Automatic Functions
(1) The following valves fail "as is"
  • MU 32 Prz. Level Control I
  • NU 19 Seal Inj. Flow Control $

l l t i i a s 8 of 14 I 

.i

r LOSS OF NNI POWER AB 1203.41 GOP-CLC-001.00  ; Attachment 41 i I (2) The following will not function i' Automatic feedwater Flow Control -S/U & N

  • 5tesa Generator low Leve; Limits
  • Pressurizer Low Level Nester Cutof f interlock
  • RCP Geal Injection Low Flow Start Interlock
  • HU pump suction auto transfer MU-3971
;
  • Letdown Divert Valve auto transfer MU 11 ,

l

  • RCP controlled bleed off high flow alarm
  • Seal Injection Filter Higa AP alana
3. Qperator Action
m. I_f,MU 11 sad /or MU 3971 are cyclias Details 2(
                                ,then open their breakers and po.11 tion                                        actions are given as'per SS                                                                       in AB.

TP-9 ! b, Reestablish letdown flow f f necessary and

throttle NU 6 to maintain pressuriser level. ,
c. Regain SG pressure control with ICS 11A and i 116 (assuming SFAS actuation).
;                          d. Initiate actiens to rassin KNI X AC Power i
e. Trauefer the following to Y Power (1) FW Temperature Selector (HSSP!) TP-10 -

i , (2) Loop 1 F.V. Valve AP (HSSPSB) TP-11 i (3) Both W.F.H. ficw selectors (NSSP2A & 28) 7P-10 l J , 1 L 4 f 9 of 14 

  ~,

  . .            -       ~        .                        --            _

LOSS OF NNI POWER AB 1203.41 GOP-OLC-001.00 Attachment 41 a i h (4) Loop 1 and 2 TN selectors (HSRC3B & 3A) ' TP-12 (5) Selected TH selector to Loop 1 (HSRC3) TP-12 (6) Both loop narrow range TC selectors TP-12 J (HSRC 4A1 & 4B1)

f. When RCE pressure decrease to len: than 1700 psig monitor pressure on SFAS RCS pressure fodication or PZR pressure computer point (P796)
g. If WNI X AC Pwe is not restcred prior to reaching cold shutdown then_ ase DX Train 1 - Due to Ioss i

of valve control and temperature indication on Train 2.

h. To add boron frors the RAAT isolate NU 23 and use its bypa.ss.

F. Loss of NNI X DC Pcwer

1. Syn.ptoms Ohj #1
a. Loss of X DC NNI Pover indicating light on Turbo-Generator Centrol Roos Panel C-5722 Panel
b. NNI 24 VDC Bus Tsite Annunciator Alara ,
c. Computer Poict 4715 - NNI X DC Bus Trip
d. All indicators and recordera displaying X signals fail toward, but not necessarily at center scale.

j 2. Automatic Actions

a. Plarit Response - Reactor Trip on high Obj #3 RCS pressure due to:

a ICS Tave fails to 570*F - Rod withdrawal 4 10 of 14

l LOSS OF NNI POWER A3 1203.41 GOP-OLC-001.00 Attachment 41

  • Selected Turbine Reader Pres.sure 
          . signal fails to 900 psig - turbine          Header Pressure continaously picks up load.                   kicker also causes -

FW & Rx demand decrease, a

  • Loop and selected TH signals fail to i 570*F - BTU Limit on Feedwater (1) Possible loss of pressurizer level due to MU 32 failing at 50%

(2) Possible SFRCS actuation on low level S/U range level signal to ICS fails at center scale. (3) Possible SFAS actuation due to MU 32 failure and overcooling due to SFRCS actuation.

6. Inoperable Autocatic Functions (1) The following valves fail to 50%
  • HU 32 PRZ level control
  • HU 19 Seal Inj. Flow Control (2) The following will not function:

Automatic feedvater flow control S/U & M

  • Steam Generator Low Level Limits
  • Automatic Len operation of the Pressurizer spray valve (RC-2)
  • Automatic Open operation of the PORV (RC24)
  • Automatic Pressurizer heater on operation
  • Pressurizer Low Level Hester Curaff interlock
  • RCP seal injection low flow start interlock
  • MU pump suction auto transfer NU 3971
  • Letdown divert valve auto transfer NU 11
  • RCP controlled bleed off high flow alarm 11 of 14

LOSS OF NNI POWER AB 1203.41 GOP-OLC-001.00 Attachment 41

  • Seal Inj. Filter AP Alarm
  • Loop 2 High and Low RC pressure alarms
  • HPI pump 1-2 Hith and Low Flow alarms
  • DH/LPI pump 1-2 High and Low Flow Alarms
  • RCP seal cavity pressure signals fail to center scale
3. Operator Actiont
a. If MU-11 and/or NU 3971 are cycling, then open their Details of breakers and position as per SS actions are given in AB TP-13
b. Reestablish letdown flow 1f necessary and throttle with NU 6 to maintain pr . level (

1

c. Initiate. actions to regain NNI X DC Power i
d. Regaic 'G pres:uretcontrol with ICS 11A and 11B (assuming SFAS actuation)
e. Transfer the following to Y power

' ) (1) Loop 1 FW valve AP ICS selector switch TP-14 (HSSPSB) 

                                     )

(2) Both NFW flow selec' tor switches TP-15 (HSSP2A & 2B) (3) Both loop WR te selector switches TP-13 (HSRC4A2 & 4B2) (4) Both Lonp NR te selector switches TP-16 (HSRC4A1 & 4B1) (5) Loop 1 TH selector switch (RSRC3B) TP-16 (6) Selected TH selector switch (HSRC3) TP-16 (7) Both loop S.G. operate range level. TP-17 selector switches (HSSP9Al & 9B1) ,

f. Monitor Pzr temperature on computer point T777. '

12 of 14

LOSS OF NNI POWER AB 1203.41 GOP-OLC-001.00 Attachment 41

g. IF NNI X DC Pwr is not restored prior to Temperature reaching cold shutdown, then use DH Train 1 indication to Train 2 lost.

G. Initial and Final Plaat Condition

1. The Plant is assumed to be in Mode 1 at 100% power, but the procedure can be used if the plant is in Mode 2.
2. The plant is taken to Mode 3 for the following: Obj. #2
a. Loss of NNI X AC Power
b. Loss of NNI X DC Power
c. Loss of NNI Y DC Power - Dependent on signals supplying ICS
3. The plant may not change modes if a loss of NNI Obj. #2 Y AC Power occurs.
4. RCS Heat Removal is via the steam generators, Obj. #4 auxiliary feedvet?r is supplying the SGs the AVVs or Steam Safeties are maintaining Pressure (Tsat; RCS Temp) forced circulation. For all Loss of Power conditions except for loss of NNI Y AC.
5. The Emergency Action Level the plant is in depends Obj. #6 on which power supply is lost. The action levels may be an Unusual Event (SFAS Actuation) or Alert (Miscellaneous) at the start during and completion of this A.B.

3.0

SUMMARY

A. Loss of NNI Y AC Power

1. Result - No plant transient B. Loss of NNI Y DC Power
1. Result - Possible underfeed - dependent on selection of Tave and TH instruments.

13 of 14 

                                                                                     -s LOSS OF NNI POWER AB 1203.41                            GOP-OLC-001.00 Attachment 41 C. Loss of NNI X AC or DC Power
1. Result - Reactor Trip on High Pressure
a. Low Tave - Rod withdrawal
b. Low TH - BTU limits
c. Header Press - Continuous Turbine Loading
d. SG Low Level Limit is lost due to loss of S/U range inst.

4.0 EVALUATION A. Ask Students to answer the objectives. 5.0 ASSIGNMENT GOP-OLC-ATTACH. 41 14 of 14

LOSS OF NNI POWER AB 1203.41 GOP-OLC-001.00 Attachment 41 Addendum 1 4.3 NNI POWER 4.3.1 Verify all four NNI power sources are energized and go to 4.4. IF NOT 4.3.2 For loss of X AC OR DC, perform 4.3.3. For loss of Y AC OR DC, perform 4.3.4. 4.3.3 For loss of X AC OR DC

1. Manually actuate SFRCS on low SG level
2. Use essential powered indicators.

I

3. IF loss of NNI X AC only, transfer pressurizer level AND temperature to Y AND Transfer MU tank level to Y and to to 4.4.
4. ADDITIONALLY IF loss of NNI X DC
1) Manually control pressurizer heaters to maintain RCS pressure consistent for plant conditions.
2) Turn off all pressurizer heaters if uncompen-sated level is below 50".
3) Monitor MU tank level on Y powered indicator j AND transfer NU pump suction to the BWST if NU tank level decreases to 10".

4.3.4 For loss of Y AC OR DC

1. Use essential AND X powered indicators
2. Transfer BOTH SG pressure selector to X power
3. Transfer loop 2 FW valve AP to X power
4. Continue with 4.4 1

1 of 1

Sarial No. 1242 Attachment 10 DATE  ; IN]pA , g C,OMPANY MEMORANDUM December 23, 1985 TJ All Licensed Individuals, STA's, and Non-Licensed Operators PROM Rick Simpkins - 

                                               ]

su::sser p Restart Training Practical Requirements Please note the attached Practical Requirements that were id-entified as needing additional training. The Knowledge Require-ments associated with the performance of the listed tasks are incorporated into the classroom portion of the Restart Training Program. The individuals responsible for completing each Practical Require-ment is listed in each task. All assigned tasks must be completed prior to restart. NOTE: Practical Requirement No. 5 (Resetting AFP Trip Throttle Valve) must be ACTUALLY performed during Hot Standby conditions. . Please forward the attached Practical Requirements to myself when your requirements are completed. attachments RAS / rec

Name Action Practical Requirements Code Date Signature 1.0 Perform manual operation of selected Air Operated Valves using guidance established in AD 1839.00, Step 5.28.2 (all non-litensed operators).

1. Manually open Start-Up Feedvater Control Valves SP7A or SP75 as per EP 1202.01, Section 6 Step 6.5.5 or 6.6.5. P,S Shift Supervisor /

Assistant Shift Supervisor

2. Manually open Seal Return Valve P,5 MU 38. Shift Supervisor /

Assistant Shift Supervisor

3. Manually open Make-Up Valve MU33. P,S Shift Supervisor /

Assistant Shif t 

                                                               ' Supervisor
4. Manually open CCW to MU Pump P,S __

Header Isolation Valve CC1460. Shift Supervisor / Assistant Shift Supervisor

5. Manually open CCW to Emergency P,S Diesel Generator Valve CCW1474 Shift Supervisor /

or CC1471. Assistant Shift Supervisor 2.0 Perform manual operation of the P,S Atmospheric Vent Valves per Shift Supervisor / EP 1202.01 Attachment 3 (cl1 non- Assistant Shift licensed operators). Supervisor l I 3.0 start Primary Water Storage Tank P,S j Transfer Pump including open PW 6881 Shift Supervisor / as per SP 1106.21, Step 5.2.1 (all Assistant Shift non-licensed operators). Supervisor l Page 1

i l l Action i Practical Requirements Code Date Signature 1 1 4.0 Perform walk-through of Attachments l for AB 1203.26, Serious Control Room Fire, j

1. Equipment Operator IIIs and S i Senior Equipment Operators Shif t Supervisor / l (Attachment 5 and 6) Assistant Shift Supervisor
2. Reactor Operators (Attachment S 3 and 4) Shift Supervisor /

Assistant Shift Supervisor

3. Senior Reactor Operators S
 .                             (Attachment I and 2)                                             Shift Supervisor /

Assistant Shift Supervisor 5.0 Perform reset of Auxiliary Feed Water P Pump Trip Throttle Valve under full Shift Supervisor / steam pressure conditions as per Assistant Shift SP 1106.06, Step 4.2.9 (all licensed Supervisor

individuals, STAS, and non-licensed operators).

6.0 Perform a walk-through lining up the P,S Motor Driven Feed Pump as an Auxiliary Shif t Supervisor / Feed Pump and as a Start-Up Feed Pump Assistant Shift as per SP 1106.28 (all non-licensed Supervisor operators). 3 7.0 Transfer MCC F13 fram normal to P,S l alternate as per SP 1107.07, Section Shift Supervisor / 6 (all non-licensed operators). Assistant Shift Supervisor 8.0 Reset EDG overspeed trip as per P,S SP 1107.11, Step 4.1.6 (all non- Shift Supervisor / licensed operators). Assistant Shift Supervisor 9.0 Manually place main turbine on P,S turning gear as per SP 1106.01 (all Shift Supervisor / non-licensed operators). Assistant Shift Supervisor i l Page 2 l ,___. _ . . _ _ _ _ , _ _ _ - _ . _ __ _ . . _ 

                                                                                                              .-    , __ _}}
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