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Busbar-Size Calculation

This document contains calculations for voltage drop in bus bars for an electrical system. It provides details of the bus bar configuration including the material, maximum current capacity and resistance/reactance values for different bus bar sizes. Line lengths, currents and the resulting voltage drops are calculated.

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redulajaypee15
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247 views6 pages

Busbar-Size Calculation

This document contains calculations for voltage drop in bus bars for an electrical system. It provides details of the bus bar configuration including the material, maximum current capacity and resistance/reactance values for different bus bar sizes. Line lengths, currents and the resulting voltage drops are calculated.

Uploaded by

redulajaypee15
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as XLSX, PDF, TXT or read online on Scribd
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N.

B:First Enter Your Details in "Other Details Sheet"

BUS BAR VOLTAGE DROP CALCULATION


BUS BAR NO ABC

Line current
Sr.No Location Sub Panel No Line Length (mt) Power
(Amp)
3.5 70 87
1000 100 124
666 788 974
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

TOTAL 1669.5 958

Result: Selected BusBar is Correct


Voltage Drop 3.49 (Within Limit)
Sheet"

LATION

Bus Bar
Resistance Reactance Voltage Drop (Vd) Voltage Drop %E

5300 (Cu) 0.007 0.011 0.01 0.00


5300 (Cu) 0.007 0.011 2.32 0.56
5300 (Cu) 0.007 0.011 12.16 2.93
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00
5300 (Cu) 0.007 0.011 0.00 0.00

14.49 3.49

1
Constant
Cos Ø: 0.9
Sin Ø: 0.44
Diversity 0.8
2 Voltage 415
BUSBAR Details
1480.86 No BUSBAR Code Max Current Capacity (Amp)
1 6300 (Cu) 6300 6300 (Cu)
2 5300 (Cu) 5300 5300 (Cu)
3 4400 (Cu) 4400 4400 (Cu)
4 3600 (Cu) 3600 3600 (Cu)
5 3000 (Cu) 3000 3000 (Cu)
6 2500 (Cu) 2500 2500 (Cu)
7 2000 (Cu) 2000 2000 (Cu)
8 1600 (Cu) 1600 1600 (Cu)
9 1250 (Cu) 1250 Increase (A) rating
10 1000 (Cu) 1000 Increase (A) rating
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Max. Voltage drop 4.00 %

ils
RESISTANCE
REACTANCE
0.00530 0.01060
0.00650 0.01130
0.00850 0.01300
0.00980 0.01480
0.01280 0.01840
0.01700 0.02320
0.01960 0.02610
0.02550 0.03360
0.03400 0.04380
0.03970 0.04320

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