198292606-110V-Battery-Sizing
description
Transcript of 198292606-110V-Battery-Sizing
-
NO
.
0
REVISIONS
BY:
BY:
BY:
BY:
BY:
REINFORCEMENT OF Al Leith 33/13.8kV S/S
110V Battery & Battery charger Sizing Calculations
JEDDAH SAUDI ARABIA 20641055/00
0
REV NO.
DESIGN CALCULATION
OF
110V Battery and Battery Charger Sizing
Calculations
DRAWING TITLE SHEET NO.DRAWING NO.
DWG CONT SHT AG/ALS/G-001
1 of 13AG/ALS/E-342
JOB ORDER NO
CERTIFIED
DATE:
THIS DRAWING IS NOT
TO BE USED FOR
CONSTRUCTION OR
FOR ORDERING
MATERIALS UNTIL
CERTIFIED AND DATED
OPRG DEPT
DATE:
ENG'G DEPT
DATE:
DRAWN
DATE: 10/08/2008
DATE: 10/08/2008
CHECKED
Shabeer.A
K. Kandiah
DE
SC
RIP
TIO
ND
AT
E
10-A
ug-0
8
BY
110V
Battery
& B
attery
charg
er
Siz
ing C
alc
ula
tions S
ubm
itte
d for
appro
val
TH
IS D
RA
WIN
G A
ND
TH
E I
NF
OR
MA
TIO
N C
ON
TA
INE
D H
ER
EIN
AR
E T
HE
SO
LE
PR
OP
ER
TY
OF
SA
UD
I E
LE
CT
RIC
ITY
CO
. N
O R
EP
RO
DU
CT
ION
IN
FU
LL
OR
IN
PA
RT
SH
AL
L B
E O
BT
AIN
ED
FR
OM
TH
IS D
OC
UM
EN
T W
ITH
OU
T T
HE
WR
ITT
EN
CO
NS
EN
T O
F I
TS
OW
NE
R.
CE
RT
'DA
PP
VD
CH
K'D
-
Page
1 - 110V Battery Bank Sizing Calculations 3
2 - 110V Battery Charger Sizing Calculations 10
NO
.
0
REVISIONS
BY: Shabeer.A
BY:
BY:
BY:
BY:
REINFORCEMENT OF Al Leith 33/13.8kV S/S
JEDDAH SAUDI ARABIA
DRAWING NO.
AG/ALS/E-342
110V
Battery
& B
attery
charg
er
Siz
ing C
alc
ula
tions S
ubm
itte
d for
appro
val
AP
PV
D
TH
IS D
RA
WIN
G A
ND
TH
E I
NF
OR
MA
TIO
N C
ON
TA
INE
D H
ER
EIN
AR
E T
HE
SO
LE
PR
OP
ER
TY
OF
SA
UD
I E
LE
CT
RIC
ITY
CO
. N
O R
EP
RO
DU
CT
ION
IN
FU
LL
OR
IN
PA
RT
SH
AL
L B
E O
BT
AIN
ED
FR
OM
TH
IS D
OC
UM
EN
T W
ITH
OU
T T
HE
WR
ITT
EN
CO
NS
EN
T O
F I
TS
OW
NE
R.
CE
RT
'D
2 of 13
BY
CH
K'D
DE
SC
RIP
TIO
N
DRAWN
DATE: 10/08/2008
DATE: 10/08/2008
CHECKED
K. Kandiah
DA
TE
10-A
ug-0
8
CERTIFIED
DATE:
THIS DRAWING IS NOT
TO BE USED FOR
CONSTRUCTION OR
FOR ORDERING
MATERIALS UNTIL
CERTIFIED AND
DATED
OPRG DEPT
DATE:
ENG'G DEPT
DATE:
20641055/00 AG/ALS/G-001
TABLE OF CONTENTS
0
DWG CONT SHT
REV NO.DRAWING TITLE
JOB ORDER NO
110V Battery & Battery charger Sizing Calculations
SHEET NO.
-
A. 110V BATTERY BANK SIZING CALCULATIONS
1- SCOPE
To meet the requirements as per SOW of Al-Leith 33/13.8kV substation, this
document deals with sizing 110V battery bank to cater for new as well as relocated equipment
in substation building. 110V DC system shall consist of 1 No. battery bank and charger.
2 - CALCULATIONS
The calculations for sizing the battery are based on IEEE-1115
2-1 CELL SIZING CALCULATIONS :
The station DC auxillary power supply parameters for DC Control System are as follows.
Battery Type = Ni-Cad
Nominal DC system Voltage = V
Minimum allowable system voltage percentage =
End cell voltage = V
Minimum Allowable DC system Voltage = V
Number of cells Required ( Ncell ) = Minimum Allowable DC system Voltage
End cell voltage
( Ncell ) = 99/1.1
= Cells
NO
.
0
REVISIONS
BY:
BY:
BY:
BY:
BY:
REINFORCEMENT OF Al Leith 33/13.8kV S/S
JEDDAH SAUDI ARABIA
CERTIFIED
DATE:
0.9
DRAWING TITLE SHEET NO.
OPRG DEPT
DATE:
ENG'G DEPT
DATE:
THIS DRAWING IS NOT
TO BE USED FOR
CONSTRUCTION OR
FOR ORDERING
MATERIALS UNTIL
CERTIFIED AND
DATED
110V Battery & Battery charger Sizing Calculations
DRAWING NO.
AG/ALS/E-342
AG/ALS/G-001
0
JOB ORDER NO 20641055/00 DWG CONT SHT
Shabeer.A
DRAWN
DATE: 10/08/2008
DATE: 10/08/2008
CHECKED
K. Kandiah
BY
CH
K'D
DE
SC
RIP
TIO
ND
AT
E
10-A
ug-0
8110V
Battery
& B
attery
charg
er
Siz
ing C
alc
ula
tions S
ubm
itte
d for
appro
val
99
CE
RT
'DA
PP
VD
90
TH
IS D
RA
WIN
G A
ND
TH
E I
NF
OR
MA
TIO
N C
ON
TA
INE
D H
ER
EIN
AR
E T
HE
SO
LE
PR
OP
ER
TY
OF
SA
UD
I E
LE
CT
RIC
ITY
CO
. N
O R
EP
RO
DU
CT
ION
IN
FU
LL
OR
IN
PA
RT
SH
AL
L B
E O
BT
AIN
ED
FR
OM
TH
IS D
OC
UM
EN
T W
ITH
OU
T T
HE
WR
ITT
EN
CO
NS
EN
T O
F I
TS
OW
NE
R.
REV NO.
110
1.1
3 of 13
-
LOAD CALCULATION :
Continuous load of 401.2 W ( 3.65A ) for Duration of 8 hours is considered.
Load details are given in Table - 1
TABLE-1
NO
.
0
REVISIONS
BY:
BY:
BY:
BY:
BY:
REINFORCEMENT OF Al Leith 33/13.8kV S/S
JEDDAH SAUDI ARABIA
CERTIFIED
DATE:
DA
TE
10-A
ug-0
8
BY
5
AG/ALS/G-001
Shabeer.A
K. Kandiah
110V Battery & Battery charger Sizing Calculations
SHEET NO.
4 of 13
DRAWING NO.
1
AG/ALS/E-342
6
3 1
33kV Transformer AVC Panel ( +AVC3)
1
61.24
133.3
29.8
61.2
77.3
133.3
29.8
1
77.3
TH
IS D
RA
WIN
G A
ND
TH
E I
NF
OR
MA
TIO
N C
ON
TA
INE
D H
ER
EIN
AR
E T
HE
SO
LE
PR
OP
ER
TY
OF
SA
UD
I E
LE
CT
RIC
ITY
CO
. N
O R
EP
RO
DU
CT
ION
IN
FU
LL
OR
IN
PA
RT
SH
AL
L B
E O
BT
AIN
ED
FR
OM
TH
IS D
OC
UM
EN
T W
ITH
OU
T T
HE
WR
ITT
EN
CO
NS
EN
T O
F I
TS
OW
NE
R.
CE
RT
'DA
PP
VD
2.2
Sl.No.
1
TOTAL CONTINUOUS CURRENT
33kV Transformer Protection Panel ( +ARH06 )
DRAWN
DATE: 10/08/2008
DATE: 10/08/2008
CH
K'D
DE
SC
RIP
TIO
N
110V
Battery
& B
attery
charg
er
Siz
ing C
alc
ula
tions S
ubm
itte
d for
appro
val
CHECKED
DWG CONT SHTJOB ORDER NO 20641055/00
THIS DRAWING IS NOT
TO BE USED FOR
CONSTRUCTION OR
FOR ORDERING
MATERIALS UNTIL
CERTIFIED AND
DATED
OPRG DEPT
DATE:
ENG'G DEPT
DATE:
Qty
24.4
Unit Load
(Watt)
33kV Bus Coupler feeder Panel (+ARH07 )
33kV Bus bar Protection Panel ( +ARHBB02 )
33kV Transducer Panel
33kV feeder Panel (+ARH05 )
Total Load
(Watt)
75.2
24.4
75.2
Continuous Loads
1
12
Description
0
REV NO.DRAWING TITLE
TOTAL 401W
3.65A401.2/110
-
2.3 TRIPPING LOADS
Unit Loads for Trip Coils have been given table-2
a) Worst Critical case of assessing the momentary Loading :
i ) Worst Critical case assessing the momentary loading has been assessed which
involves simultaneous tripping of 5 Nos. of 33kV CBs on 33kV bus fault and
8 Nos. of 13.8kV CBs on 13.8kV bus fault
Load of 5 x 2 No. Trip Coils = 5 x 2 x 50 = W
Load of 8 x 2 No. Trip Coils = 8 x 2 x 50 = W
Total Trip Coils = W
Nominal DC system Voltage = V
Total Tripping Current = A
2.4 RESTORATION LOADS
Momentary Loading for restoration is considered as the load for closing 2 no. 33kV CB,
1 Nos. of 13.8kV CBs, tripping of 1 No. of 13.8kV CB ( if the fault persists ) and 1 No. of
Spring Charging motor running. Load details are given in table 2
i) Load of 2 33kV closing CB = 2 x 50 = W
ii) Load of 1 13.8kV closing CBs = 1 x 50 = W
iii) Load of 1 13.8kV Tripping CB = 1 x 50 = W
iv) Load of one operating motor = 1 x 380 = W
running
Total = W
Total Restoration Current = A
Table - 2
NO
.
0 MOMENTARY LOADS
REVISIONS
BY:\
BY:
BY:
BY:
BY:
REINFORCEMENT OF Al Leith 33/13.8kV S/S
JEDDAH SAUDI ARABIA
50
1 50 50CHECKED
1
1
Total Load
(Watt )
50
50
1300
110
11.82
Unit Load
(Watt )
50
500
800
110V
Battery
& B
attery
charg
er
Siz
ing C
alc
ula
tions S
ubm
itte
d for
appro
val
CE
RT
'DB
YC
HK
'DD
ES
CR
IPT
ION
AP
PV
D
K. Kandiah
REV NO.
110V Battery & Battery charger Sizing Calculations
DRAWN
DATE: 10/08/2008
DATE: 10/08/2008
DA
TE
10-A
ug-0
8
Shabeer.A
OPRG DEPT
DATE:
ENG'G DEPT
DATE:
AG/ALS/E-342
AG/ALS/G-001
CERTIFIED
DATE:
THIS DRAWING IS NOT
TO BE USED FOR
CONSTRUCTION OR
FOR ORDERING
MATERIALS UNTIL
CERTIFIED AND
DATED
0
DRAWING TITLE
Drive Mechanism 1
5050
5.27
DWG CONT SHT
SHEET NO.
5 of 13
DRAWING NO.
1 50 50
JOB ORDER NO 20641055/00
100
50
50
380
580
380 380
Sl.No
a) 33kV Switchgear ( assumed)
QtyDescription
TH
IS D
RA
WIN
G A
ND
TH
E I
NF
OR
MA
TIO
N C
ON
TA
INE
D H
ER
EIN
AR
E T
HE
SO
LE
PR
OP
ER
TY
OF
SA
UD
I E
LE
CT
RIC
ITY
CO
. N
O R
EP
RO
DU
CT
ION
IN
FU
LL
OR
IN
PA
RT
SH
AL
L B
E O
BT
AIN
ED
FR
OM
TH
IS D
OC
UM
EN
T W
ITH
OU
T T
HE
WR
ITT
EN
CO
NS
EN
T O
F I
TS
OW
NE
R.
b) 13.8kV Switchgear
Circuit Breakers
Circuit Breakers
Trip Coil-2
Closing Coil
Closing Coil
Trip Coil-1
50 50
Trip Coil-1 1
Trip Coil-2 1
-
2.5 EMERGENCY LOAD
Emergency Lighting load for 1.5 hours is considered as 360W ( 2.88A ) maximum number
of 9 incandascent lamps of 40W each are switched on at any given time by the maintenance
personnel who reach the substation within 1.5 hours of power failure
3 LOAD SUMMARY :
The respective loads are listed below. Duty cycle is given in Annex-1
Continuous Load - 8 hours = A
Momentary Tripping Load - 1 min. = A
Momentary Restoration Load - 1 min. = A
Emergency Lighting Load - 1.5 Hours = A
4 BATTERY SIZING WORKSHEET :
Given in Annexure II and III.
5 BATTERY CURVE/ DATA :
Manufactures Data are given in Annexure IV.
6 CALCULATION OF REQUUIRED SIZE :
Maximum uncorrected size = Ah
Temperature Correction = (Refer IEEE-1106, Table A.1)
(at minimum Temp = -5C)
Design Margin =
Aging Factor =
NO
.
0
REVISIONS
Required Capacity = Uncorrected Size x Design Margin x Aging factor
BY: x Temperature Correction Factor
BY: Required Capacity = 107.84948 x 1.15 x 1.25 x 1.2
BY: Required Capacity = Ah
BY:
BY:
REINFORCEMENT OF Al Leith 33/13.8kV S/S
JEDDAH SAUDI ARABIA
SHEET NO.
6 of 13
DRAWING NO.
AG/ALS/E-342
DRAWING TITLE TH
IS D
RA
WIN
G A
ND
TH
E I
NF
OR
MA
TIO
N C
ON
TA
INE
D H
ER
EIN
AR
E T
HE
SO
LE
PR
OP
ER
TY
OF
SA
UD
I E
LE
CT
RIC
ITY
CO
. N
O R
EP
RO
DU
CT
ION
IN
FU
LL
OR
IN
PA
RT
SH
AL
L B
E O
BT
AIN
ED
FR
OM
TH
IS D
OC
UM
EN
T W
ITH
OU
T T
HE
WR
ITT
EN
CO
NS
EN
T O
F I
TS
OW
NE
R.
CE
RT
'DA
PP
VD
BY
CH
K'D
DE
SC
RIP
TIO
ND
AT
E
10-A
ug-0
8110V
Battery
& B
attery
charg
er
Siz
ing C
alc
ula
tions S
ubm
itte
d for
appro
val
DRAWN
DATE: 10/08/2008
DATE: 10/08/2008
CHECKED
Shabeer.A
K. Kandiah
186.04
CERTIFIED
DATE:
THIS DRAWING IS NOT
TO BE USED FOR
CONSTRUCTION OR
FOR ORDERING
MATERIALS UNTIL
CERTIFIED AND
DATED
OPRG DEPT
DATE:
ENG'G DEPT
DATE:
110V Battery & Battery charger Sizing Calculations
DWG CONT SHT
REV NO.
0
AG/ALS/G-001
1.20
107.85
JOB ORDER NO 20641055/00
1.15
1.25
3.65
11.8
5.27
2.88
-
7 - CONCLUSION
Required Battery Ah capacity = Ah
Nearest available size = Ah
The Total Ampere - hour capacity may be used to determine the intial cell size,
the total capacity = 186.0 Ah and the choosen battery is SBM208
Rated Capcity = 208 Ah
NO
.
0
REVISIONS
BY:
BY:
BY:
BY:
BY:
REINFORCEMENT OF Al Leith 33/13.8kV S/S
JEDDAH SAUDI ARABIA
AG/ALS/E-342
DRAWING TITLE
AG/ALS/G-001
0
208
REV NO.
186.0
SHEET NO.
7 of 13
DRAWING NO.
K. Kandiah
OPRG DEPT
DATE:
ENG'G DEPT
20641055/00 DWG CONT SHT
CERTIFIED
DATE:
THIS DRAWING IS NOT
TO BE USED FOR
CONSTRUCTION OR
FOR ORDERING
MATERIALS UNTIL
CERTIFIED AND
DATED
110V Battery & Battery charger Sizing Calculations
DATE:
JOB ORDER NO
DRAWN
DATE: 10/08/2008
DATE: 10/08/2008
CHECKED
DA
TE
10-A
ug-0
8
Shabeer.A
110V
Battery
& B
attery
charg
er
Siz
ing C
alc
ula
tions S
ubm
itte
d for
appro
val
BY
CH
K'D
DE
SC
RIP
TIO
N
TH
IS D
RA
WIN
G A
ND
TH
E I
NF
OR
MA
TIO
N C
ON
TA
INE
D H
ER
EIN
AR
E T
HE
SO
LE
PR
OP
ER
TY
OF
SA
UD
I E
LE
CT
RIC
ITY
CO
. N
O R
EP
RO
DU
CT
ION
IN
FU
LL
OR
IN
PA
RT
SH
AL
L B
E O
BT
AIN
ED
FR
OM
TH
IS D
OC
UM
EN
T W
ITH
OU
T T
HE
WR
ITT
EN
CO
NS
EN
T O
F I
TS
OW
NE
R.
CE
RT
'DA
PP
VD
-
A1 = Continuous Load + momentary Tripping = A
A2 = Continuous Load = A
A3 = Continuous + Emergency = A
A4 = Continuous = A
A5 = Continuous + Restoration = A
NO
.
0
REVISIONS
BY:
BY:
BY:
BY:
BY:
REINFORCEMENT OF Al Leith 33/13.8kV S/S
JEDDAH SAUDI ARABIA
8.92
15.5
3.65
6.53
3.65
TH
IS D
RA
WIN
G A
ND
TH
E I
NF
OR
MA
TIO
N C
ON
TA
INE
D H
ER
EIN
AR
E T
HE
SO
LE
PR
OP
ER
TY
OF
SA
UD
I E
LE
CT
RIC
ITY
CO
. N
O R
EP
RO
DU
CT
ION
IN
FU
LL
OR
IN
PA
RT
SH
AL
L B
E O
BT
AIN
ED
FR
OM
TH
IS D
OC
UM
EN
T W
ITH
OU
T T
HE
WR
ITT
EN
CO
NS
EN
T O
F I
TS
OW
NE
R.
CE
RT
'DA
PP
VD
BY
OPRG DEPT
DATE:
ENG'G DEPT
CH
K'D
DE
SC
RIP
TIO
N
110V
Battery
& B
attery
charg
er
Siz
ing C
alc
ula
tions S
ubm
itte
d for
appro
val
10-A
ug-0
8
DRAWN
DATE: 10/08/2008
DATE: 10/08/2008
CHECKED
DA
TE
Shabeer.A
K. Kandiah
CERTIFIED
DATE:
THIS DRAWING IS NOT
TO BE USED FOR
CONSTRUCTION OR
FOR ORDERING
MATERIALS UNTIL
CERTIFIED AND
DATED
110V Battery & Battery charger Sizing Calculations
DRAWING TITLE
DATE:
DRAWING NO.
AG/ALS/E-342
AG/ALS/G-001
0
REV NO.SHEET NO.
8 of 13
JOB ORDER NO 20641055/00 DWG CONT SHT
-
ANNEXURE - 1
A1= 15.5A
A5=8.92A
A3=6.53A
A2=A4=3.65A
NO
.
0
REVISIONS
BY:
BY:
M1 M2 M3 M4 M5
BY:
0 1 90 479 MINUTES
BY:
Al-Leith 33/13.8kV Substation Load duty cycle profile for
110V DC Battery Sizing Calculation
BY:
REINFORCEMENT OF Al Leith 33/13.8kV S/S
JEDDAH SAUDI ARABIA
TH
IS D
RA
WIN
G A
ND
TH
E I
NF
OR
MA
TIO
N C
ON
TA
INE
D H
ER
EIN
AR
E T
HE
SO
LE
PR
OP
ER
TY
OF
SA
UD
I E
LE
CT
RIC
ITY
CO
. N
O R
EP
RO
DU
CT
ION
IN
FU
LL
OR
IN
PA
RT
SH
AL
L B
E O
BT
AIN
ED
FR
OM
TH
IS D
OC
UM
EN
T W
ITH
OU
T T
HE
WR
ITT
EN
CO
NS
EN
T O
F I
TS
OW
NE
R.
CE
RT
'DA
PP
VD
CH
K'D
DE
SC
RIP
TIO
N
110V
Battery
& B
attery
charg
er
Siz
ing C
alc
ula
tions S
ubm
itte
d for
appro
val
BY
OPRG DEPT
10-A
ug-0
8
Shabeer.A
K. Kandiah
DRAWN
DATE: 10/08/2008
DATE: 10/08/2008
CHECKED
DA
TE
DWG CONT SHT
REV NO.
AG/ALS/G-001
SHEET NO.
DATE:
ENG'G DEPT
DATE:
AG/ALS/E-342
DRAWING TITLE
CERTIFIED
DATE:
THIS DRAWING IS NOT
TO BE USED FOR
CONSTRUCTION OR
FOR ORDERING
MATERIALS UNTIL
CERTIFIED AND
DATED
110V Battery & Battery charger Sizing Calculations
JOB ORDER NO 20641055/00
0
5.2
7 A
9 of 13
DRAWING NO.
2.88A
180 480
AM
PE
RE
-
B. 110V BATTERY CHARGER SIZING CALCULATIONS
1 - SCOPE :
To meet the requirements as per SOW of Al-Leith 33/13.8kV substation, this
document deals with sizing 110V battery charger to cater for new as well as relocated equipment
in existing SWGR building. DC system shall have one battery float / boost charger.
2 - CALCULATIONS :
The ampere hour rating of a battery charger is determined by equation which is as per
Technical specification
A = (1.25 X L)+ (BIF X AHR) ) / 0.83 1
RT
Where :
A = required charger rating in amperes
L = Maximum Required DC load in amperes =
( Continuous load is considered )
BIF = Battery inefficiency factor =
AHR = Ampere hour removed during discharge =
(Maximum discharger is considered)
RT = Recharge time in hours =
Subsitituting the above values in Equ - 1
AR = [ (1.25 x 3.2 ) + (1.1 x 200) ] / 0.83
NO
.
0 16
REVISIONS
AR =
BY:
Next higher size available = 50A
BY:
BY:
The battery Charger Current Size = 50A
BY:
BY:
REINFORCEMENT OF Al Leith 33/13.8kV S/S
JEDDAH SAUDI ARABIA AG/ALS/G-001
Shabeer.A
K. Kandiah
3.6
1.1
208
110V Battery & Battery charger Sizing Calculations
SHEET NO.
10 of 13
DRAWING NO.
TH
IS D
RA
WIN
G A
ND
TH
E I
NF
OR
MA
TIO
N C
ON
TA
INE
D H
ER
EIN
AR
E T
HE
SO
LE
PR
OP
ER
TY
OF
SA
UD
I E
LE
CT
RIC
ITY
CO
. N
O R
EP
RO
DU
CT
ION
IN
FU
LL O
R I
N P
AR
T S
HA
LL B
E O
BT
AIN
ED
FR
OM
TH
IS D
OC
UM
EN
T W
ITH
OU
T T
HE
WR
ITT
EN
CO
NS
EN
T O
F I
TS
OW
NE
R.
CE
RT
'DA
PP
VD
AG/ALS/E-342
BY
DRAWN
DATE: 10/08/2008
DATE: 10/08/2008
CH
K'D
DE
SC
RIP
TIO
N
11
0V
Ba
tte
ry &
Ba
tte
ry c
ha
rge
r S
izin
g C
alc
ula
tio
ns S
ub
mitte
d f
or
ap
pro
va
l
DA
TE
10
-Au
g-0
8
OPRG DEPT
DATE:
ENG'G DEPT
JOB ORDER NO 20641055/00 DWG CONT SHT
CERTIFIED
DATE:
THIS DRAWING IS NOT
TO BE USED FOR
CONSTRUCTION OR
FOR ORDERING
MATERIALS UNTIL
CERTIFIED AND DATED
CHECKED
DATE:
DRAWING TITLE
0
16
22.7
REV NO.
-
ANNEXURE -II
CALCULATION OF CAPACITY RATING FACTOR.( KT )
REFERENCE : IEEE Std. 1115-2000
Minimum Cell Voltage : 1.1 V
Cell Mfg. : SAFT
Rated Ampere hour capacity (Ay std. Time Rate at 25 C
to Std % end of discharge)
KT = Ampere that will be supplied for T minute at 25 C
to given end of discharge voltage
The Kt factor for time t is calculated in the table by interpolation using the formula
(Kt2 - Kt1) x ( t2 - t )
Kt = Kt2 - ( t2 - t1 )
End voltage discharge voltage of cell = V
Rated Ampere hour capacity = Ah
Calculation of K T Factor :
NO
.
0
REVISIONS
BY:
BY:
BY:
BY:
BY:
REINFORCEMENT OF Al Leith 33/13.8kV S/S
JEDDAH SAUDI ARABIA
DATE:
THIS DRAWING IS NOT
TO BE USED FOR
CONSTRUCTION OR
FOR ORDERING
MATERIALS UNTIL
CERTIFIED AND
DATED
5
OPRG DEPT
DATE:
ENG'G DEPT
DATE:
DRAWING TITLE
480
3.432
2 90 93.9 2.215
25.60 8.125
4 479 25.65
1.1
208
Sl.No T minute Total Ampere
TH
IS D
RA
WIN
G A
ND
TH
E I
NF
OR
MA
TIO
N C
ON
TA
INE
D H
ER
EIN
AR
E T
HE
SO
LE
PR
OP
ER
TY
OF
SA
UD
I E
LE
CT
RIC
ITY
CO
. N
O R
EP
RO
DU
CT
ION
IN
FU
LL
OR
IN
PA
RT
SH
AL
L B
E O
BT
AIN
ED
FR
OM
TH
IS D
OC
UM
EN
T W
ITH
OU
T T
HE
WR
ITT
EN
CO
NS
EN
T O
F I
TS
OW
NE
R.
CE
RT
'DA
PP
VD
BY
CH
K'D
DE
SC
RIP
TIO
ND
AT
E
10-A
ug-0
8110V
Battery
& B
attery
charg
er
Siz
ing C
alc
ula
tions S
ubm
itte
d for
appro
val
JOB ORDER NO 20641055/00
DRAWN
DATE: 10/08/2008
DATE: 10/08/2008
CHECKED
Shabeer.A
K. Kandiah
8.109
CERTIFIED
KT Factor
REV NO.
0
DWG CONT SHT
SHEET NO.
11 of 13
DRAWING NO.
AG/ALS/E-342
AG/ALS/G-001
0.588
110V Battery & Battery charger Sizing Calculations
1 1 354
3 180 60.6
-
ANNEXURE-III
NO
.
0
REVISIONS
BY:
BY:
BY:
BY:
BY:
REINFORCEMENT OF Al Leith 33/13.8kV S/S
JEDDAH SAUDI ARABIA
DRAWING NO.
Load (A)change in
load (A)
Duration of
operation
(min)
REV NO.
0
20641055/00 DWG CONT SHT
SHEET NO.
12 of 13
AG/ALS/G-001
T = M1 = 1.0 0.5880 9.11
Total
time to end of
section (min)
1A1 =
15.50A1-0= 15.50 M1 = 1.0
period
DATE:
THIS DRAWING IS NOT
TO BE USED FOR
CONSTRUCTION OR
FOR ORDERING
MATERIALS UNTIL
CERTIFIED AND
DATED
110V Battery & Battery charger Sizing Calculations
DRAWING TITLE
T = M2+M3+M4 =
478.08.0920 -95.89
T = M3+M4=
389.0
JOB ORDER NO
AG/ALS/E-342
K. Kandiah
OPRG DEPT
DATE:
ENG'G DEPT
DATE:
CERTIFIED
DATE: 10/08/2008
DRAWN
DATE: 10/08/2008
110V
Battery
& B
attery
charg
er
Siz
ing C
alc
ula
tions S
ubm
itte
d for
appro
val
BY
CH
K'D
DE
SC
RIP
TIO
N
CHECKED
DA
TE
10-A
ug-0
8
Shabeer.AT
HIS
DR
AW
ING
AN
D T
HE
IN
FO
RM
AT
ION
CO
NT
AIN
ED
HE
RE
IN A
RE
TH
E S
OL
E P
RO
PE
RT
Y O
F S
AU
DI
EL
EC
TR
ICIT
Y C
O.
NO
RE
PR
OD
UC
TIO
N I
N F
UL
L O
R I
N P
AR
T S
HA
LL
BE
OB
TA
INE
D F
RO
M T
HIS
DO
CU
ME
NT
WIT
HO
UT
TH
E W
RIT
TE
N C
ON
SE
NT
OF
IT
S O
WN
ER
.
CE
RT
'DA
PP
VD
M2 = 89.0
Require section size
(Ah)
+ve value -ve value
Section - 1 first period only
KT factor
M1 = 1.0 T =M1+M2 = 90 2.2150 34.33
T = M1+M2+M3 =
180.03.4320
9.11
Section - 2 first two periods only
1A1 =
15.50A1-0= 15.50
2A2 =
3.65
A2-A1=
-11.85
1A1 =
15.50A1-0= 15.50 M1 = 1.0 53.20
T = M2 = 89.0 2.1970 -26.03
SECTION - 1 to 5 (TOTAL) 107.85
T = M3
90.02.2150 6.383
A3 =
6.53
A3-A2=
2.88M3 = 90.0
Total 37.28
2A2 =
3.65
A2-A1=
-11.85M2 = 89.0
T = M2+M3 =
179.03.4190
2A2 =
3.65
A2-A1=
-11.85M2 = 89.0
-40.52
Total 8.30
Section - 3 first three periods only
Total 19.06
Section - 4 first four periods only
1A1 =
15.50A1-0= 15.50 M1= 1.0
T =
M1+M2+M3+M4 = 8.1080 125.67
34.10
Section - 5 first five periods only
3A3 =
6.53
A3-A2=
2.88M3 = 90.0
M4 = 299 T =M3
299.05.1090
125.94
6.6070 19.03
4A4 =
3.65
A4-A3= -
2.88-14.71
Total
1A1 =
15.50A1-0= 15.50 M1 = 1.0
T =
M1+M2+M3+M4 = 8.1250
19.08
2A2 =
3.65
A2-A1=
-11.85M2 = 89.0
T =
M2+M3+M4+M5 = 8.1080 -96.08
3A3 =
6.53
A3-A2=
2.88M3 = 90.0
T = M3+M4+M5=
3906.6240
3.10
4A4 =
3.65
A4-A3= -
2.88M4 = 299
T = M4+M5
3005.1230 -14.75
5A5 =
8.92
A5-A4=
5.27M5 = 1.0
T = t4
1.00000.5880
-
13 of 13