LT Cable Sizing Format

SHEET 1 of 6

PROJECT: COTE DIVORE AND MALI INTERCONNECTION PROJECT

CUSTOMER :

TITLE : LT POWER CABLE SCHEDULE

DOC.NO : REV:0 DATE:10.02.10

S.NO DESCRIPTION

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PANEL PANEL / DRIVE m m Nos

CHP MCC

415V SWITCHBOARD

1 415V Switchboard 415V Switchboard 1 415 500 Cu XLPE 2 1Cx500 980.00 0.077 0.0859 0.85 0.53 735.00 208 416 5.774 2.783 4

2 Oil Filration Unit 415V Switchboard Oil Filration Unit 1 415 125 Cu XLPE 1 3.5Cx50 133.00 0.820 0.0750 0.85 0.53 99.75 73 73 6.721 2.805 2

3 C&R Panel 415V Switchboard C&R Panel 1 415 32 Cu XLPE 1 4Cx50 174.00 0.495 0.0750 0.85 0.53 130.50 33 33 0.486 0.203 2

4 415V Switchboard 110/33kV Trafo-1 OLTC& Cooler-1 1 415 32 Cu XLPE 1 4Cx6 54.00 3.940 0.0884 0.85 0.53 40.50 73 73 7.932 3.310 2






10 110/33kV RTCC for Trafo-1 415V Switchboard 110/33kV RTCC for Trafo-1 1 415 16 Cu XLPE 1 2Cx4 49.00 5.900 0.0927 0.85 0.53 36.75 33 33 2.674 1.116 2



13 Outdoor LTG Panel 415V Switchboard Outdoor LTG Panel 1 415 32 Cu XLPE 1 4Cx6 54.00 3.940 0.0884 0.85 0.53 40.50 58 58 6.302 2.630 2

14 Indoor LTG Panel 415V Switchboard Indoor LTG Panel 1 415 32 Cu XLPE 1 4Cx6 54.00 3.940 0.0884 0.85 0.53 40.50 23 23 2.499 1.043 2

15 Fire Fighting 415V Switchboard Fire Fighting 1 415 32 Cu XLPE 1 4Cx6 54.00 3.940 0.0884 0.85 0.53 40.50 23 23 2.499 1.043 2

16 Weldting Socket 415V Switchboard Weldting Socket 1 415 63 Al XLPE 1 3.5Cx25 94.00 1.540 0.0805 0.85 0.53 70.50 73 73 6.215 2.594 2

17 110kV Metering & Control Room 415V Switchboard 110kV Metering & Control Room 1 415 32 Cu XLPE 1 4Cx10 72.00 2.340 0.0837 0.85 0.53 54.00 128 128 8.328 3.475 2

18 Motorised Isolator with E/S-1 415V Switchboard Motorised Isolator with E/S-1 1 415 16 Cu XLPE 1 4Cx4 43.00 5.900 0.0927 0.85 0.53 32.25 108 108 8.750 3.652 2








26 Motorised Isolator w/o E/S-9 415V Switchboard Motorised Isolator w/o E/S-9 1 415 16 Cu XLPE 1 4Cx4 43.00 5.900 0.0927 0.85 0.53 32.25 68 68 5.509 2.299 2



29 Manual Operated Isolator-1 415V Switchboard Manual Operated Isolator-1 1 415 10 Cu XLPE 1 2Cx4 49.00 5.900 0.0927 0.85 0.53 36.75 133 133 6.735 2.811 2




POWER CABLE NO.

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REMARKS

Incoming Supply From LTPCC

110/33kV Trafo-1 OLTC& Cooler-1110/33kV Trafo-1 OLTC& Cooler-2110/33kV Trafo-2 OLTC& Cooler-3110/33kV Trafo-2 OLTC& Cooler-4110/11kV Trafo-1 OLTC& Cooler-5110/11kV Trafo-1 OLTC& Cooler-6

SHEET 2 of 6


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POWER CABLE NO.

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REMARKS

Formulaes Used

Voltage Drop Vd : I ( RCosØ + XSinØ) * L/1000 …….(1) Cu XLPE 1Cx4 47.00 5.900 0.0000 Al XLPE 1Cx500 490.00 0.077 0.0859

%VD : Vd*1.732*100/V % …….(2) Cu XLPE 2Cx6 60.00 3.940 0.0884 Al XLPE 2Cx6 55.00 5.900 0.0884

%VD : Vd*2*100/V % …….(3) Cu XLPE 3Cx4 43.00 5.900 0.0927 Al XLPE 3Cx4 34.00 9.480 0.0927

Cu XLPE 4Cx35 144.00 0.671 0.0783 Al XLPE 4Cx6 43.00 5.900 0.0884

Cu XLPE 3.5Cx25 119.00 0.930 0.0805 Al XLPE 3.5Cx25 94.00 1.540 0.0805

Percentage Voltage Drop for three phase current

Percentage Voltage Drop for Single phase current

SHEET 3 of 6


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CHP MCC

125V DCDB

1 125V DCDB Charger 125V DCDB 1 125 63 Cu XLPE 1 2Cx35 168.00 0.524 126.00 14 14 0.924 0.739 2

2 Battery Bank Charger Battery Bank 1 125 50 Cu XLPE 1 2Cx35 168.00 0.524 126.00 20 20 1.048 0.838 2

3 225kV Line Bay BMK 125V DCDB 225kV Line Bay BMK 1 125 50 Cu XLPE 1 2Cx70 246.00 0.268 184.50 136 136 3.645 2.916 2

4 225kV MVAr ReaCtor Bay BMK 125V DCDB 225kV MVAr ReaCtor Bay BMK 1 125 50 Cu XLPE 1 2Cx95 288.00 0.193 216.00 181 181 3.493 2.795 2

5 ReaCtor Bay C&R Panel 125V DCDB ReaCtor Bay C&R Panel 1 125 32 Cu XLPE 1 2Cx10 84.00 1.830 63.00 22 22 2.577 2.061 2

6 225kV Line C&R Supply 125V DCDB 225kV Line C&R Supply 1 125 32 Cu XLPE 1 2Cx10 84.00 1.830 63.00 22 22 2.577 2.061 2

7 415V ACDB Panel 125V DCDB 415V ACDB Panel 1 125 16 Cu XLPE 1 2Cx6 60.00 3.080 45.00 20 20 1.971 1.577 2

8 125V DCDB 1 125 16 Cu XLPE 1 2Cx6 60.00 3.080 45.00 20 20 1.971 1.577 2

9 125V DCDB 1 125 16 Cu XLPE 1 2Cx6 60.00 3.080 45.00 20 20 1.971 1.577 2

10 EmergenCy Lighting 125V DCDB EmergenCy Lighting 1 125 16 Cu XLPE 1 2Cx6 60.00 3.080 45.00 23 23 2.267 1.814 2

Formulaes Used Cu XLPE 1Cx4 47.00 4.610 Al XLPE 1Cx4 36.00 7.410

Voltage Drop Vd : (I *R *2 L)/1000 Cu XLPE 2Cx70 246.00 0.268 Al XLPE 2Cx6 55.00 4.610

Percentage Voltage Drop %VD : Vd*100/V % Cu XLPE 3Cx4 43.00 4.610 Al XLPE 3Cx4 34.00 7.410

Cu XLPE 4Cx35 144.00 0.524 Al XLPE 4Cx6 43.00 4.610

POWER CABLE NO.

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FIELD

CommuniCation System SCada Panel Supply


CommuniCation System Fiber OptiC Panel Supply


SHEET 4 of 6


CUSTOMER :



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CHP MCC

415V SWITCHBOARD

1 415V Switchboard 415V Switchboard 1 415 630 Cu PVC 2 1Cx800 1776.00 0.028 0.0826 0.85 0.53 1332.00 208 416 4.419 2.130 4

2 Oil Filration Unit 415V Switchboard Oil Filration Unit 1 415 125 Cu PVC 1 3.5Cx50 100.00 0.829 0.0750 0.85 0.53 75.00 73 73 6.794 2.835 2

3 C&R Panel 415V Switchboard C&R Panel 1 415 32 Cu PVC 1 4Cx6 45.00 3.925 0.0884 0.85 0.53 33.75 33 33 3.572 1.491 2

4 110/33kV Trafo-1 OLTC& Cooler-1 415V Switchboard 110/33kV Trafo-1 OLTC& Cooler-1 1 415 32 Cu PVC 1 4Cx6 45.00 3.925 0.0884 0.85 0.53 33.75 73 73 7.903 3.298 2






10 110/33kV RTCC for Trafo-1 415V Switchboard 110/33kV RTCC for Trafo-1 1 415 16 Cu PVC 1 2Cx4 41.00 5.875 0.0927 0.85 0.53 30.75 33 33 2.662 1.111 2



13 Outdoor LTG Panel 415V Switchboard Outdoor LTG Panel 1 415 32 Cu PVC 1 4Cx6 45.00 3.925 0.0884 0.85 0.53 33.75 58 58 6.279 2.620 2

14 Indoor LTG Panel 415V Switchboard Indoor LTG Panel 1 415 32 Cu PVC 1 4Cx6 45.00 3.925 0.0884 0.85 0.53 33.75 23 23 2.490 1.039 2

15 Fire Fighting 415V Switchboard Fire Fighting 1 415 32 Cu PVC 1 4Cx6 45.00 3.925 0.0884 0.85 0.53 33.75 23 23 2.490 1.039 2

16 Weldting Socket 415V Switchboard Weldting Socket 1 415 63 Al PVC 1 3.5Cx25 76.00 1.553 0.0805 0.85 0.53 57.00 73 73 6.265 2.615 2

17 110kV Metering & Control Room 415V Switchboard 110kV Metering & Control Room 1 415 32 Cu PVC 1 4Cx10 60.00 2.332 0.0837 0.85 0.53 45.00 128 128 8.300 3.464 2

18 Motorised Isolator with E/S-1 415V Switchboard Motorised Isolator with E/S-1 1 415 16 Cu PVC 1 4Cx4 36.00 5.875 0.0927 0.85 0.53 27.00 108 108 8.714 3.637 2








26 Motorised Isolator w/o E/S-9 415V Switchboard Motorised Isolator w/o E/S-9 1 415 16 Cu PVC 1 4Cx4 36.00 5.875 0.0927 0.85 0.53 27.00 68 68 5.486 2.290 2



29 Manual Operated Isolator-1 415V Switchboard Manual Operated Isolator-1 1 415 10 Cu PVC 1 2Cx4 41.00 5.875 0.0927 0.85 0.53 30.75 133 133 6.707 2.799 2




POWER CABLE

NO.

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REMARKS

Incoming Supply From LTPCC

SHEET 5 of 6


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POWER CABLE

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REMARKS

Cu PVC 1Cx50 235.00 0.493 0.1080 Al PVC 1Cx50 175.00 0.829 0.1080

Formulaes Used Cu PVC 2Cx95 240.00 0.246 0.0724 Al PVC 2Cx6 40.00 5.965 0.0884

Voltage Drop Vd : I ( RCosØ + XSinØ) * L/1000 …….(1) Cu PVC 3Cx4 36.00 5.875 0.0927 Al PVC 3Cx4 28.00 9.589 0.0927

%VD : Vd*1.732*100/V % …….(2) Cu PVC 4Cx50 145.00 0.493 0.0750 Al PVC 4Cx6 35.00 5.965 0.0884

%VD : Vd*2*100/V % …….(3) Cu PVC 3.5Cx25 99.00 0.926 0.0805 Al PVC 3.5Cx25 76.00 1.553 0.0805

AC Resistance R : …….(4)

Description for Eq-4

= 0.00392 Note: Single Core Copper and Aluminium conductor datas are taken from ducab catalogue

= 0.0042

= 90

= 20

Percentage Voltage Drop for three phase current

Percentage Voltage Drop for Single phase current

R0(1+α(T2-T1))

R 0 is D.C Resistance at 20 ºC

α isTemp Coefficient

α for Copper at 20 ºC as per ABB Switchgear Manual Table 1-15 page 32

α for Aluminium at 20 ºC is as per ABB Switchgear Manual Table 1-15 page 32

T2 in ºC

T1 in ºC

SHEET 6 of 6


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CHP MCC

125V DCDB

1 125V DCDB Charger 125V DCDB 1 125 63 Cu XLPE 1 2Cx35 140.00 0.524 105.00 14 14 0.924 0.739 2

2 Battery Bank Charger Battery Bank 1 125 50 Cu XLPE 1 2Cx35 140.00 0.524 105.00 20 20 1.048 0.838 2

3 225kV Line Bay BMK 125V DCDB 225kV Line Bay BMK 1 125 50 Cu XLPE 1 2Cx70 205.00 0.268 153.75 136 136 3.645 2.916 2

4 225kV MVAr ReaCtor Bay BMK 125V DCDB 225kV MVAr ReaCtor Bay BMK 1 125 50 Cu XLPE 1 2Cx95 240.00 0.193 180.00 181 181 3.493 2.795 2

5 ReaCtor Bay C&R Panel 125V DCDB ReaCtor Bay C&R Panel 1 125 32 Cu XLPE 1 2Cx10 70.00 1.830 52.50 22 22 2.577 2.061 2

6 225kV Line C&R Supply 125V DCDB 225kV Line C&R Supply 1 125 32 Cu XLPE 1 2Cx10 70.00 1.830 52.50 22 22 2.577 2.061 2

7 415V ACDB Panel 125V DCDB 415V ACDB Panel 1 125 16 Cu XLPE 1 2Cx6 50.00 3.080 37.50 20 20 1.971 1.577 2

8 125V DCDB 1 125 16 Cu XLPE 1 2Cx6 50.00 3.080 37.50 20 20 1.971 1.577 2

9 125V DCDB 1 125 16 Cu XLPE 1 2Cx6 50.00 3.080 37.50 20 20 1.971 1.577 2

10 EmergenCy Lighting 125V DCDB EmergenCy Lighting 1 125 16 Cu XLPE 1 2Cx6 50.00 3.080 37.50 23 23 2.267 1.814 2

Formulaes Used Cu PVC 1Cx120 390.00 0.153 Al PVC 1Cx4 0.00 0.000

Voltage Drop Vd : (I *R *2 L)/1000 Cu PVC 2Cx70 205.00 0.268 Al PVC 2Cx6 40.00 4.610

Percentage Voltage Drop %VD : Vd*100/V % Cu PVC 3Cx4 36.00 4.610 Al PVC 3Cx4 28.00 7.410

Cu PVC 4Cx35 120.00 0.524 Al PVC 4Cx6 35.00 4.610

Note: Single Core Copper and Aluminium conductor datas are taken from ducab catalogue

POWER CABLE NO.

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LT Cable Sizing Format