Batt Size Calc

8/20/2019 Batt Size Calc

1/18

Page 1

1.0 S1 - Generator incomer, Qty 1 No.

Device Description Type Qty.

1.1 Relays

Trip circuit supervisory relay VAX31 2 6 0

Auxiliary relay VAA11 2 0 6

DC moitorig relay VA!11 1 0." 0 Ati pumpig relay VAA11 2 0 6

1.2 Devices

i#icatig lamps $%D & ' 0

(atts trac#ucer 1 " 0

Digital ammeter 1 3 0

%ergy meter 1 " 0

Quiescent load of relays 6.5

Continuous load of devices 1

Total continuous load of relays and devices !.5

"ic#up load of all relays 1

Total continuous load for 1 No. incomer !.5Total relay pic#up load for 1 No. incomer 1

2.0 S - Cement mill motor feeder, Qty 5 Nos.


2.1 Relays

)umeric o*c + e*, relay 1 20 20

Auxiliary relay VAA11 3 0 -


Ati pumpig relay VAA11 1 0 3

DC moitorig relay VA!11 1 0." 0

ig/ spee# trip relay VA13 1 0 1"0

2.2 Devices




%lectroic eergy meter 1 " 0

Quiescent load of relays $.5


Total continuous load of relays and devices %%.5

"ic#up load of all relays 1&

Total continuous load for 5 Nos. of mill motor feeder .5

Total relay pic#up load for 5 Nos. of mill motor feeder '1(

3.0 S$ - )eed pump motor feeder, Qty % Nos.


3.1 Relays

otor protectio relay 1 20 20

Auxiliary relay VAA11 " 0 1"





i#icatig lamps $%D " 10 0(atts trac#ucer 1 " 0

Quiescentload *+

"ic#upload *+

Quiescentload *+

"ic#upload *+

Quiescentload *+

"ic#upload *+


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3.2 Devices Digital ammeter 1 3 0

Temperature scaer 1 10 1"



Continuous load of devices $$

Total continuous load of relays and devices 56.5

"ic#up load of all relays ($

Total continuous load for % Nos. of feed pump motor feeder 6

Total relay pic#up load for % Nos. of feed pump motor feeder &1

&.0 S% - .5 / station transformer feeder, Qty % Nos.


&.1 Relays


Auxiliary relay VAA11 & 0 1"


Ati pumpig relay VAA11 1 0 3DC moitorig relay VA!11 1 0." 0


Time relay ,or *V relay 1 " "

&.2 Devices





(i#o auciator lamp 1 1' 0

Quiescent load of relays &.5

Continuous load of devices $'Total continuous load of relays and devices 6!.5

"ic#up load of all relays 1'$

Total continuous load for % Nos. of transformer feeders !(

Total relay pic#up load for % Nos. of transformer feeders !!

".0 S5 - ( / station transformer feeder, Qty Nos.


".1 Relays








Tras,ormer #i,,. Relay 1 20 20

".2 Devices






Quiescent load of relays %&.5

Quiescentload *+

"ic#upload *+

Quiescentload *+

"ic#upload *+


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Page 3

Continuous load of devices $'

Total continuous load of relays and devices &!.5

"ic#up load of all relays 1$

Total continuous load for Nos. of transformer feeders 1!5

Total relay pic#up load for Nos. of transformer feeders %6

".0 S5 - ( / station transformer feeder, Qty Nos.


".1 Relays








Tras,ormer #i,,. Relay 1 20 20

".2 Devices






Quiescent load of relays %&.5

Continuous load of devices $'

Total continuous load of relays and devices &!.5

"ic#up load of all relays 1$

Total continuous load for Nos. of transformer feeders 1!5

Total relay pic#up load for Nos. of transformer feeders %6

6.0 S6 - ( Spare tie feeder, Qty 1 No.


6.1 Relays








6.2 Devices







Total continuous load of relays and devices %'.5

"ic#up load of all relays 1&!

Total continuous load for 1 No. of Spare tie feeder %'.5

Total relay pic#up load for 1 No. of Spare tie feeder 1&!

Quiescentload *+

"ic#upload *+

Quiescentload *+

"ic#upload *+


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Page &

4.0 S! - 0us coupler, Qty 1 No.


4.1 Relays


Auxiliary relay VAA11 1 0 6





4.2 Devices


ooter 1 0 10


5ell 1 0 1"

(i#o auciator lamp 1 - 0


Continuous load of devices (Total continuous load of relays and devices %$.5

"ic#up load of all relays (%

Total continuous load for 1 No. of 0us coupler %$.5

Total relay pic#up load for 1 No. of 0us coupler (%

'.0 S& - "0 2ncomer feeder, Qty 1 No.


'.1 Relays


Auxiliary relay VAA11 & 0 12


Ati pumpig relay VAA11 1 0 3DC moitorig relay VA!11 1 0." 0


'.2 Devices







Total continuous load of relays and devices %%.5

"ic#up load of all relays 1&5

Total continuous load for Nos. of transformer feeders %%.5

Total relay pic#up load for Nos. of transformer feeders 1&5

-.0 S' - Cement plant tie feeder, Qty Nos.


-.1 Relays





DC moitorig relay VA!11 1 0." 0ig/ spee# trip relay VA13 1 0 1"0

Quiescentload *+

"ic#upload *+

Quiescentload *+

"ic#upload *+

Quiescentload *+

"ic#upload *+


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Page "


-.2 Devices







Total continuous load of relays and devices %'.5

"ic#up load of all relays 1&!

Total continuous load for Nos. of Cement plant tie feeders ''

Total relay pic#up load for Nos. of Cement plant tie feeders $!%

10.0 3T1 - %15 S4itcoard incomer, Qty $ Nos.


10.1 Relays)umeric o*c + e*, relay 1 20 20Trip circuit supervisory relay VAX31 1 3 0


10.2 Devices i#icatig lamps $%D " 10 0

Quiescent load of relays $

Continuous load of devices 1(

Total continuous load of relays and devices $$

"ic#up load of all relays 1!(

Total continuous load for $ Nos. of incomer ''

Total relay pic#up load for $ Nos. of incomer 51(

11.0 3T - %15 S4itcoard us coupler, Qty Nos.


11.1 Relays )oe

11.2 Devices

i#icatig lamps $%D 3 6 0

ooter 1 0 10

5ell 1 0 1"

(i#o auciator lamp 1 - 0

Quiescent load of relays (


Total continuous load of relays and devices 15

"ic#up load of all relays 5

Total continuous load for 1 No. of 0us coupler $(

Total relay pic#up load for 1 No. of 0us coupler 5(

12.0 3T$ - %15 S4itcoard out7oin7 feeder, Qty 1& Nos.


12.1 Relays




Quiescentload *+

"ic#upload *+

Quiescentload *+

"ic#upload *+

Quiescentload *+

"ic#upload *+


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Page 6

12.2Devices

i#icatig lamps $%D 3 6 0


Quiescent load of relays $


Total continuous load of relays and devices $%

"ic#up load of all relays 1!(

Total continuous load for 1& Nos. of out7oin7 feeder 61

Total relay pic#up load for 1& Nos. of out7oin7 feeder $(6(

13.0 TG area 7enerator panel 8 9" as per DD2T list

irst 1 mi. loa# 7(8 $&5&5

irst 1 /our loa# 7(8 ((!

Cotiuous loa# 7(8 %1$.

1&.0 mer7ency li7tin7

$ig/tig loa# 7(8 ,or 1 r. 110 V x 10 A 11((

Si:in7 calculation

A. Continuous load *+ of ;T < 3T s4itc 7ears alone (!$.5

5.

)eeder ner7ised load of relays-01 *+ Trip coil = Closin7 coil load - 0 *+

1x91 12 360

2x9" &26 360

1x9' 1'" 1'0

3x$T "10 -0

Total 11$$ ''(

C.%$&&1.5 + = $'&.' /

D. $$&(.5 + = 1.55 /

%. Continuous load for ne>t ours ? / 8 TG e@pt continuous load%%&6.! + = %(.!' /

. 3ast 1 min load ? / 8 0 8 TG e@pt continuous load 5%!6.! + = %'.& /

%ergise# loa# o, relays a# :rea;er trip coils<

aximum DC poer re=uiremet ill occur #urig :lac;out co#itio /e all t/e circuit :rea;ersit/ u#er voltage protectio trip simultaeously. T/e correspo#ig DC poer #ema# illcomprise o, 1x!eerator icomer> 2x20 VA tras,ormer ,ee#er> 1x P%5 icomer a# 3x$Tsitc/:oar# icomers.

Total 1 min. load durin7 trippin7 ? / 8 01 8 0 8 TG e@pt. 1 minload 8 mer7ency li7tin7 load

)irst our load ? / 8 TG e@pt. 1 r. load 8 mer7ency li7tin7load


7/18

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8/18

Page '

IEEE std. 485 - 1997 method of battery sizing

A. 9ectio 1

1 3-'.- 3-'.- 1 ??? 0.&4 1'4.&'3

Total 1&!.%&$

5. 9ectio 2

1 3-'.- 3-'.- 1 1 1.4' 410.0&2

2 212."" @1'6.3" "- 0.-' 1.44 @32-.'3-"

Total $&(.(5

C. 9ectio 3

1 3-'.- 3-'.- 1 2.-' 3.'- 1""1.421

2 212."" @1'6.3" "- 2.-4 3.'' @423.03'

3 &0.4- @141.46 11- 1.-' 2.'- @&-6.3'6&

Total $$.'66

D. 9ectio &

1 3-'.- 3-'.- 1 3.00 3.-1 1""-.6--

2 212."" @1'6.3" "- 2.-' 3.'- @42&.-01"

3 &0.4- @141.46 11- 2.00 2.-1 @&--.'216

& &-.' -.01 1 ??? 0.&4 &.23&4

Total $$'.1(6

Calculated section si:e A $&(.( /

Temp. correction factor A 1

Desi7n mar7in A 1.1

/7in7 factor A 1.5a>imum section si:e A 5.&%$!5

*1"eriodNo.

*3oad*/

*$Can7e in load

*/

*%Duration*mins.

*5Tim

etoend ofsec.*rs

.

*6

B factor

*!e@uiredsec si:e

*/


9/18

Page -

Capacity of selected attery A 55 /

Battery parameters

Nominal DC volta7e A 11( DCNominal DC volta7e A = cell

"ermissile lead drop for te attery an# A .5(

"ermissile end cell volta7e A 1.& = cell

No. of cells per attery an# A 55 cells

±


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±

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Batt Size Calc