ML041200057
| ML041200057 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 10/02/2003 |
| From: | Entergy Operations |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| 2D12-1989, Rev 2 | |
| Download: ML041200057 (10) | |
Text
8.1.20 Record the "As Found" reading on Data Sheet 1.
8.1.21 I f any single reading is questionable, lhen -
move the "Forward/Revers " leJer t o "Rev and average the two readings, If not, Then mark t h i s step NIB.
8.1.22 Repeat Steps 8.1.16 through 8.1.21 for each c e l l connection i n the battery.
.,&?
1 NOTE -
I The micro-ohm t e s t is for the i n t e r c e l l straps an c o ~ c c t i o n s I cable connections need t o be measured from the battery post t o t 8.1.23 Wicro-ohm the i n t e r - t i e r c terminal t o battery termin 6.1.24 I f the8tAsFound11r exceeds 150 micro-o Then -
i n i t i a t e a Condition Report and notify t h Cognizant Supervisor for further instructions, If not, Then mark t h i s step calculatmn t o ver 9.2.1 clou and on i:
rifier shall rep average cell te 2
ten c e l l s listed o 8.2.3 and record be1 (K Fact Factor :
8.2.4 tion factor a
(K Factor) based in Step 8.2.2 an 8.2.5 Calculate the actual discha
Independent verifier s h a l l verify that the load t e s t e r is s e t up correctly f o r a 9 h a t the current value c a l c h a t e d i n Verification of calculations perfo Cognizant Supervisor and permis s t a r t t e s t.
Close 2052 disconnect switch.
S t a r t the discharge test.
Record the Start time on Data Shee Adjust and maintain current throu out the t e s t t o the calculated value + 1% of setp Displayed Value setpoint by + 1%, t h an additional +
I I Extra data may be taken and attached I r a t e and the battery voltage should b I
I The print out from the I accompany the followin I
8.2.1 intervals esr 8.2.15 I F th ischargt is stop than a low voltage c e i f,
8.2.16 If an individual c e l l or c e l l s ar approaching 1.0 volts Then record the c e l l ( s ) n the Cognizant Supervisor t e s t closely monitoring the c e l l voltage t o v that no c e l l goes below -75 vdc, I f not, -
Then mark t h i s step Cell number:
Volts:
Volts :
Cell number:
Volts:
8.2.17 I f a t anytime d u r i n g t h e t e s t a e e l l ( s ) v o l t a drops below.75 vdc, Then -
stop the discharge Cognizant Supervisor and recor and on Attacbent 3, and go t o A t I f not, Then mark t h i s step Discharge Stop Time:
7 I The f i n a l readings need t o be rapidly t a I voltage approaches and goes below the 10 I
8.2.18 Read the indi 8.2.20 Turn off t
8.2.23 De-energize load tester.
8.2.24 Unbolt remove the load test c 8.2.25 Disconnect any remaining battery load test set nitoring cables cornect 8.3 Restore the battery t o senrice w i t h the help of operations..
8.3.1 Install the 800.
tin fuses Fn 2W2 8.3.2 Close the Battery 2D52 Disco 8.3.3 Verify that the e l ctrical lineup is restore the charger is wor ing properly.
8.3.4 Record below th Charger used:
8.3.7 Record below the a f t e r IS hours f r Heasuring m d Test E i'+
Calibration due date:
8.3.8 Place the charger on f l o a t a f t e r co hours of equalizing charge.
8.3.9 Record t3e volt Voltage 8.4 Battery Capacity C 8.4.1 I f Attachment 2 was used, Then use the new calculated T from step 15 of I f not, Then obtain T from Data Sheet 2, IF NOT, a f c i t y a t ?'?OF = (T
INDEPENDENT VERIFIER An independent verifier shall repeat the calculations or determining the capacity of the battery.
8.4.4 Repeat the calculations for determining the capacity of the battery (Independent Verifier).
TA (minutes) 590 x 100 =
480 minutes 8.4.5 I f the capacity calcul ted is l e s s than 90%.
Then -
notify maintenanc engineer for evaluation, I f the capacity is greater than or equal t o 90%
Then -
mark t h i s step N/A.
J 8.5 Battery Maintenance I
NOTE -
1 When tightening the terminal connectors, two insulat d wrenches should be c I applying one as counter-torque t o prevent damage t o he t e m h a l post.
If I checking the torque of a 5/16 inch stainless bolt connection that was not d I assembled then 125 in/& is the proper value.
I f the conn I or disassembled then torque t o 165 in/lbs.
Step 8.5.1 t h r I accomplished a t any time a f t e r Step 8.3.5 has been accompli I through 8.5.10 may be acco l ~ s h e d a f t e r equalize charge cu I a low enough level such t h charge current does not affect resistanc I readings.
8.5.1 Verify t h a t a l l 'b t t e r y connections 8.5.2 Torque value: 13 8.5.3 Check the rack nuts, t;e rod nuts,
~ i t h t o r q u e vrench e r orque wrench n
Factor K t
Cell No.
1 6
12 18 24 3 0 3 6 43 4
3 54 Temp.
7Li(
7%-
TOTAL Temp
DATA SHEET 2 Page 1 of "
Performance Discharge l e s t Battery Bank and Cell Volta
DATA SHEET 2 Page 2 Performance Discharqe Test Battery Bank and cell-voltages Battery Bank 2012 Test Equq: dcT-d70/
DATA SHEET 2 Page 3 of Performance Discharge Test Battery Bank and Cell Voltages Battery Bank 2012 -
15 Haws I 16 Hours l 17 Hours l l a Hours1 Performed by Date I
NOTE 1 Terminal voltage of 105 volts may be reached before a hour or % hour r e I can be taken.
Indicate the number of mnutes past the hour o r half hsur I
i above the column where the l a s t readrnq was taken a t test mxlpletron, I
1
DATA SHEET 2 Page 4 of 4 Performance Battery Bank lattery Bank 2012 Dis and charge Test Cell Voltages S T / r r T Bn u K u G.,pc Bank Voltage: /0 5.
Start Time: / Y Y %
Stop Tlme: 3343