ML20054K013

Offnormal Event Procedure 05-1-02-V-6, Feedwater Control Failure Max Demand,Safety-Related, Revision 11

ML20054K013
Person / Time
Site:	Grand Gulf
Issue date:	06/12/1982
From:	MISSISSIPPI POWER & LIGHT CO.
To:
Shared Package
ML20054J949	List: AECM-82-280, Forwards 37 Offnormal Event Procedures in Response to ACRS Subcommittee Request at 810917-18 Meeting ML20054J952 ML20054J953 ML20054J963 ML20054J965 ML20054J968 ML20054J971 ML20054J972 ML20054J974 ML20054J975 ML20054J979 ML20054J980 ML20054J982 ML20054J983 ML20054J986 ML20054J990 ML20054J992 ML20054J993 ML20054J996 ML20054J998 ML20054J999 ML20054K001 ML20054K004 ML20054K008 ML20054K009 ML20054K012 ML20054K013 ML20054K016 ML20054K019 ML20054K021 ML20054K024 ML20054K026 ML20054K030 ML20054K031 ML20054K033 ML20054K034 ML20054K036 ML20054K039 ML20054K040
References
05-1-02-V-6, 5-1-2-V-6, NUDOCS 8206300299
Download: ML20054K013 (3)

Text

- . . . . . . _ ...

,- i, PLANT OPERATIONS MANUAL

=

Volume 05 05-1-02-V-6 Section 02 Revision: 11 Date: 6-12-82 OFF NORMAL EVENT PROCEDURE

.. FEEDWATER CONTROL FAILURE MAX DEMAND SAFETY RELATED

~

m~ g .

Prepared: -

h( W 00 -

R iewed: / a

~

Nuclear Plant Ouality Superintehdent Technical Review Approved: Q -

OperatigsS erintend nt Concurrence: /

Assi fant Pl'hnt'ManaF r PSRC: ,,

g/4/p> .

{ . i  : ..

List of Effective Pages:

Page:

1-2 List of TCN's Incorporated:

Revision TCN No.

10 None -

11 None 8206300299 820625 PDR ADOCK 05000416 p PDR .

.aqRAND GULF NUCLEAR STATION OFF-NORMAL EVENT PROCEDURE

Title:

Feedwater Control No.: 05-1-02-V-6 Revision: 11 Page: 1 Failure Max Demand i

i 1

1.0 PURPOSE / DISCUSSION 1.1 The purpose of this procedure is to provide instruction for the operator i; during a Flow Control Failure causing an increase in Reactor Water

Inventory.

,j 1.2 This procedure may interface with ONFP's, S01's, Emergency Plan, and

Emergency Procedures.

f 1.3 A Feedwater Flow Control Failure causing an excess of coolant inventory in the Reactor Vessel is possible during the run and startup modes of l operation. The increasing level may be caused by a failure of the i Startup Level Control Valve or by one or both Reactor Feed Pump Speed

( Controls. During startup a Reactor Scram on high flux may occur due to a i cold water addition. In RUN, the Reactor may scram on high level if the operator does not trip the affected Reactor feed pump prior to <+53.5.

i If both Reactor Feed Pumps fail with increasing speed, the Reactor wiJl ~

>* scram on high level.

'i i

2.0 SYMPTOMS -- -- .. . -. .

s ' *

.. 2.1 Increasing Reactor Water Level.

.g 2.2 Reactor Level High Alarm.,, -

2.3 Reactor Feed Pump Control Signal Failure Alarm.

~

2.4 Reactor High Water Level Trip Al' arm.

2.5 Reactor Scram due to high reactor level or high neutron flux.

2.6 APRM Upscale Alarms, i .. 2.7 Reactor Feed Pump Trip.

_ff 2.8 Main Turbine Trip. ..-

s 3.0 AUTOMATIC ACTIONS l

3.1 Reactor Scram if power level reaches 15% in startup or the flow-biased flux scram setpoint if in run. -

3.2 Reactor Scram, if leve,' reaches +53.5" in run.

l l 3.3 Reactor Feed Pump, Main Turbine, and RCIC Turbine Trips, if level l

reaches +53.5".

_, y. _y.. _ , - - _ , __m., ., __

• 'pRAND CULF NUCLEAR STATION OFF-NORMAL EVENT PROCEDURE

, e

Title:

Feedwater Control No.: 05-1-02-V-6 Revision: 11 Pege: 2 Failure Max Demand l 4.0 IMMEDIATE OPERATOR ACTIONS 4.1 Verify automatic actions occur.

4.2 If a scram has occurred, carry out the actions of Reactor Scram ONEP l 05-1-02-1-1.

! 4.3 If one of two running Reactor Feed Pumps has failed to Max Demand.

l j 4.3.1 Switch to Manual and regain control, or trip the failed Reactor Feed Pump.

> 4.3.2 If necessary, reduce Recirculation flow u. Oc n ;;cl to reduce power to less than 60%.

4.4 If the Reactor Feed Pump has failed to Max Demand while on the startup

. level control valve: j 4.4.1 Take manual control of the Startup Level Control Valve and reduce feed. -

, ,.. . ~. .

~

4.4.2 Startup the second Reactor Feed Pump in accordance with '

. S01-04-1-01-N21-1.

~

4.4.3 Shutdown the failed Reactor Feed Pump in accordance with S01-04-1-01-N21-1.

'4.4 If the Startup Level Control Valve has failed open, control feed using the SU FCV OUTL ISOL VLV 1N21-F001, handswitch HS-M625 on panel.

. 1H13-P870 to maintain normal water level.

5.0 SUBSEQUENT ACTIONS l

5.1 Control level between +32 and +42".

~

~

5$2 Proceed to implement EP-1, Level Control, if directed by the Shift! ,

Supervisor or Shift Superintendent.

5.3 If one Reactor Feed Pump is tripped and the Reactor did not scram, investigate the cause of the failure.

5.4 Continue reactor operation as per 101 03-1-01-2, Power Operation.

I

-_ - - - . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _- __ J