battery sizing 132-11kv

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Doc no-xxxx Battery Sizing calculations

Approv ed by- Umesh Nai r

110V DC Battery Sizing calculation for 132/11kV Primary SubstationFor Tender Purpose Only

Design by-Dundi kumar.B Abhu-Dhabi national Chemical Plant

12/23/2014


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INDEX

1.0

2.0

3.0

4.0

5.0 RESULT & SUMMARY

6.0 LOAD CYCLE CALCULATIONS:

6.1 CALCULATION OF CONTINOUS LOADS:-

6.2 CALCULATION OF DC EMERGENCY LIGHTING LOADS:-

6.3 CALCULATION OF MOMENTARY LOADS:-

6.4 FINAL LOAD CYCLE:-

6.5 DIAGRAM OF LOAD CYCLE

7.0 DC LOAD CALCULATION TABLE

7.1 TABLE-1: FOR INVERTER LOAD

7.2 TABLE-2: FOR AUX BCU PANEL

7.3 TABLE-3: FOR AC BOARD

7.4 TABLE-4: FOR 110V DC BOARD

7.5 TABLE-6: FOR AVR PANEL

8.0 BATTERY CHARGER RATING CALCULATION

9.0 BATTERY SIZING CALCULATION

CONTENT

PURPOSE

DESIGN INPUT

DESIGN CRITERIA

CALCULATION OF LOAD CYCLE

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1.0 PURPOSE:

2.0 DESIGN INPUT:01. Abhu Dhabi Transmission & Despatch Company Technical Specification No. s-TR-AUX-BAT&CH-NiCad-110-

D(Rev.1_item2.3.4doc)

02 Tender Draw ing No. CC01A-2-80881-PW-DSL-1010 of Conceptual Overall Key SINGLE LINE DIAGRAM03 Main Single line diagram for 132kV CC01A-2-80881-PW-DSL-1002

04 Main Single line diagram for 11kV CC01A-2-80881-PW-DSL-1008

3.0 DESIGN CRITERIA:

01 110V DC System is composed of 2X100% Battery Banks w ith 2X100% Boost

Battery Chargers

02 Each Battery Bank is sized for a back-up period of 10 Hrs w ith follow ing duty cycle

a) Continuous load for 10 hours comprising of Relays,IEDs,Station HMIs,Spr ing charging ,

Isolator intelocking load,Lighting loads of Controlrooms,relay rooms,Miscellaneous permanently connected

loads etc

b) Emergency load for 6hour comprising of Substaion emergency lighting loads.

c) Momentary load for 1 min comprising of Breaker c losing,Tripping loads (taking simultaneousoccurrence as per system)

03 Type of Battery is Ni-Cd Battery of normal dischage type.(As per Clause 2.2 of Battery & Charger

Specification of page 5 of 15)

04 As per specification battery is designed with following considerations

a) End of discharge cell voltage -1.05V

b) Design ambient temperature : 20 deg C

05 Expected life of Battery is 20 years.

06 Other factors required for battery sizing are considered as follows:

a) Design margin : 1.1 (as per practice)

b) Aging factor : 1.25 (As per clause 6.2.3 IEEE-1115)

07 a) The charger offered for the project shall be Boost charging the battery w ithout connected load.

b) Design margin of 1.1 is applied on continuous load for sizing of charger.

4.0 CALCULATION OF LOAD CYCLE :

a) Based on the design inputs, the load cycle of battery is calculated and summarized

b) As per the Individual relay panel loads.

c) Inverter load details under Table-1

d) Aux BCU panel, AC Board & AVR panel loads are at Table-2, Table-3 & Table-4

5.0 RESULT & SUMMARY:

01 Battery Sizing

a) Battery sizing is done with HBL software - HBL Ni-Cd Optisize 3.2.1b) Corrected size of battery is obtained as 2202.80AH.

c) Battery shall be selected from the available range 2202.80Ah .

02 Charger Sizing

a) Based on the load cycle, charger sizing is done,refer clause no. 2.3

b) The offered rating of charger based on calculations is 600A.

This document is intended to size the battery requirement 110V DC systems for the 220kV

Abhu-Dhabi National Chemicals

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6.0 LOAD CYCLE CALCULATIONS:

1.1

Unit

LoadTo tal L oad D ur at io n

(W) (W) Sec

1 Inv erter Load Cont. 1 4000 4000 36000

2 SCMS F ront end Panel-1 Cont. 1 120 120 36000

3 SCMS F ront end Panel-2 Cont. 1 32 32 36000

6 Communicat ion panel-1 Cont. 1 116 116 36000

7 Communicat ion panel-2 Cont. 1 116 116 36000

12 Incomming Protection Panel Cont. 3 114 342 36000

15 132kV Bus coupler Protection Panel Cont. 1 108 108 36000

17 132/11kVTraf o f edder Protection Panel Cont. 4 173 692 36000

18 Auxiliary BCU panel Cont. 1 76 76 36000

19 Aux load AC Board Cont. 1 71.1 71.1 36000

20 Aux Load 110V DC Board Cont. 1 17.2 17.2 36000

21 FMS Ev aluation panel Cont. 1 88 88 36000

22 Ehernet switches Cont. 20 7.5 150 36000

23 11kV Switch gear panel Cont. 44 40 1760 36000

24 Emergency Lighting f or Relay ,Control room Cont. 7 100 700 36000

25 AVR Panel Cont. 1 71 71 36000

26 132kV LCC Panels Cont. 8 300 2400 36000

TOTAL 10859

6.2

Unit

LoadTotal Load

Duration

(W) (W) Sec

1 DC Lighting for other Buildings 0 -360

Min.10 100 1000 21600

TOTAL 1000

6.3

i)

Unit


(W) (W) Sec

1 Tripping Coil of the 132kV Breakers 0-1

Min8 1198 9584.00 1.00

Disconnector Opening load

Unit


(W) (W) Sec

1 132kV Disconnector Opening load 0-2

Min1 1620 1620.00 91.00

Disconnector Closing load

Unit


(W) (W) Sec

1 132kV Disconnector Closing load 0-4

Min1 2200 2200.00 252.00

Sr No

Sr No Descr ip tionDuty

Cycle

No of

Units

CALCULATION OF MOMENTARY LOADS:


Cycle

No of

Units

DescriptionDuty

Cycle

No of

Units

Consider ing o ne bus bar Zone with sub sequent restorat ion

CALCULATION OF CONTINUOUS LOADS:

No of

Units


Cycle

No of

Units

CALCULATION OF DC EMERGENCY LIGHTING LOADS:


Cycle

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7

CONTINUOUS LOAD

EMERGENCY LIGHTING

MOMENTARY LOAD(Trippingload)

MOMENTARY LOAD

(Openingload)

MOMENTARY LOAD

(Closing load)

TIME (IN Hours)

10

113.4 A

113.4 A

118.7 A

118.7 A

9:

460 6 8

DIAGRAM FOR LOAD CYCLE

98.7 A

107.8 A

185.8 A

185.8 A

LOAD

(In

Amps)

107.8 A

98.7 A

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7.1 TABLE-1 INVERTER LOAD

TYPE Qty

1 Station HMI (including monitor) 1 375.0 375.0

2 Station HMI - Redundant (including monitor) 1 375.0 375.0

3 HMI View Node (including monitor) 2 375.0 750.0

4 DR Work Station 1 375.0 375.0

5 Gateway 2 375.0 750.0

6 GPS Receiv er with Clock 1 100.0 100.07 Laser Printer (When Activ e) 1 375.0 375.0

8 Dot Matrix Printer 2 80.0 160.0

3260.0

Considering eff iciency of Inv erter to be 85%, load on 220V DC System: 3835.29 W

appoximately 4kW considered

7.2 TABLE-2 AUX BCU PANEL

TYPE Qty

1 BCU, C264 1 20.0 20.0

2 Ruggedcom Ethernet Switch 2 28.0 56.0

76.0

7.3 TABLE-3 AC BOARD

TYPE Qty

1 Aux. Contactor 7 1.5 10.5

2 Single Pole Inst. Underv oltage Relay 1 4.0 4.0

3 Trip Circuit Super Vision Relay 3 4.5 13.5

4 INDICATING LAMPS 12 1.0 12.0

5 Dif f erential Relay f or DG incomer (87) 3 5.7 17.1

6 3 O/C Relay (51 RYB) f or DG Incomer 1 3.0 3.0

7 Single Pole Def inite Time delay relay (51Y) 1 5.0 5.0

8 Timer On delay 2 3.0 6.0

71.1

7.4 TABLE-4 110V DC BOARD

TYPE Qty

1 Under Voltage Relay (27) 2 3.3 6.6

2 Ov er Voltage Relay (59) 2 3.3 6.6

3 Earth Leakage Relay (96) 2 2.0 4.0

17.2

7.5 TABLE-5 AVR PANEL

TYPE Qty

1 AVR RELAY 1 40.0 40.0

2 Annunciator 1 18.0 18.0

3 Aux. Flag Relay 2 4.5 9.0

4 INDICATING LAMPS 4 1.0 4.0

71.0

CONTINUOUS

Total

Sl No

Sl NoDEVICE CONTINUOUS

LOAD (W)


LOAD (W)CONTINUOUS

Total

Total

DEVICE CONTINUOUS

LOAD (W)

Total

CONTINUOUS


LOAD (W)CONTINUOUS

Total


LOAD (W)CONTINUOUS

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8.0 BATTERY CHARGER RATING CALCULATION

Required Charger Rating =

Boost Charging current f or the proposed Battery + Total Standing (Continous Load)

Selected Battery cell is Type:2*KBM1150P

Current rating r equired in Boost mode

= 0.2 x Ah Capac it y of Bat te (Max imum Perm issible boos t charging current = 20% of Ah)

= 0.2 x 2203

= 440.56 Amps

Total Standing Load=98.72A

539.28

Considering maximum of Boost ;

Design rating of charger 600.00 Amps

The charger will be operated in boost mode .

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1.0 DESIGN DATA

1.1 Type of Battery = Ni-Cd

1.2 Manufacturer = HBL

1.3 Battery nominal Voltage (V) = 110

1.4 Battery minimum Voltage (V) = 991.5 = 115.5

1.6 = 10 Deg C

1.7 = 1.05

1.8 = 1.2

1.9 = 1.6

2 = 300C

2.1 = 50C

2.2 = 96

2.5

Load in

Watts

Current

(Amps)

Durations

(Sec)Start

10859.30 98.72 36000.00 0 Sec

1000.00 9.09 21600.00 14056.00 Sec

9584.00 87.13 1.00 35656.00 Sec

1620.00 14.73 91.00 35657.00 Sec

2200.00 20.00 252.00 35748.00 Sec

2.5

Current

(Amps)

98.72

107.81

185.85113.45

118.72

Note:-

0:00:01A4 0:1:51

Tripping Load considered on the 132kV Side only.

Momentary Load( Tripping Load)

Load ProfileTime

( Hrs :Minutes :sec)

A1

Load Profile

End of Cell Volta e:Float Volta e OCVBoost Voltage (OCV)

Maximum Temp

Minimum Tem

Emergency Load for grid station

buildings

132kV CB Closing Load

132kV DS Opening Load

A2 6:00:00

A5 0:4:25

9:46:18

A3

Load Type

Continuous Load (LC)

Battery Sizing calculations 1 of 1

Battery Maximum Voltage (V)

Minimum Ambient Temperature

Battery Duty Cycle Data

Re uired no.of cells er batter

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Monday, 22 December, 2014

Battery Calculation Report - IEEE 1115 - 2000

(8)

Required Section Size

(3) * (6) / (7)

=Rated Amp hrs

Temperature

Derating

Factor for t

Min(Tt)

(7)

Capacity Rating

Factor

t Min Rate(Kt)

(6)

Time To End

of Section

(minutes)

(5)

Duration of

Period

(minutes)

(4)(3)

Change in

Load

(amperes)

Load

(amperes)

(2)

Period

(1)

Performance Type:Cell End Voltage:Min. Electrolyte Temperature:

Project Ref.

:

KBM1.0520

o

Guestustomer :

VC

1233

0Revision:

echnology :

nquiry Number : 1111

Nickel Cadmium Pocket Plate

1ection Period/s Only - If A2 is greater than A1, Go to Section 2First 1

1

1Section Sub Total


1

2

2Section Sub Total


1 98.72 98.72 586.30 946.32 15.473 1.000 1,527.49

2 107.81 9.09 360.00 360.02 6.054 1.000 55.03

3 185.85 78.04 0.250 1.000 19.51

1,602.043Section Sub Total


1

2

3

4

4Section Sub Total


1 98.72 98.72 586.30 952.60 15.573 1.000 1,537.37

2 107.81 9.09 360.00 366.30 6.156 1.000 55.96

3 185.85 78.04 6.30 0.526 1.000 41.05

4 113.45 -72.40 1.87 6.28 0.526 1.000 -38.08

5 118.72 5.27 4.42 4.42 0.480 1.000 2.53

1

This document becomes contractual only after written confirmation

2/23/2014

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Monday, 22 December, 2014

Battery Calculation Report - IEEE 1115 - 2000

(8)

Required Section Size

(3) * (6) / (7)

=Rated Amp hrs

Temperature

Derating

Factor for t

Min(Tt)

(7)

Capacity Rating

Factor

t Min Rate(Kt)

(6)

Time To End

of Section

(minutes)

(5)

Duration of

Period

(minutes)

(4)(3)

Change in

Load

(amperes)

Load

(amperes)

(2)

Period

(1)

Performance Type:Cell End Voltage:Min. Electrolyte Temperature:

Project Ref.

:

KBM1.0520

o

Guestustomer :

VC

1233

0Revision:

echnology :

nquiry Number : 1111

Nickel Cadmium Pocket Plate

1,598.825Section Sub Total

*

Maximum Section Size

=

Selected Cell

2,202.80 *

1,602.04Corrected Size = (Maximum Section Size * Design Margin * Aging Factor)

1,602.04(

2 * KBM 1150 P

2 * 95 KBM 1150 PBattery Proposed

=

:

:

1.10 1.250)

This document becomes contractual only after written confirmation

2/23/2014

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battery sizing 132-11kv

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