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Underground Cable Selection and Voltage Drop Calculations
Cos φ =
φ = 30,68
Secondary Voltage
:
Soil Temperature
(k1):
10
15
20
25
35
40
45
50
55
60
65
70
75
80
Nature of Soil
(k2):
Very Wet Soil
Wet Soil
Damp Soil
Dry Soil
Very Dry Soil
Laying Depth
(k3):
0,5
0,6
0,8
1
1,2
1,5
1,75
2
2,5
3
m
Impedance
Cu 56 Al 35
pvc
xlp
Laying Cables in Underground Trenches:
xlpe
pvc
Earth Temp Derating Factor
(K1):
0,93
0,89
Nature of Soil Derating Factor
(K2):
1
1
Earth Laying Depth Rating Factor
(K3):
0,96
0,96
Underground Cable Output Power(kW):
kW
A
A
Cable Length(m):
Number of Circuits(Number):
Copper
Aluminium
Selected Cross-Section(pvc)
:
3x95+50 ( 199 / 233 A)
3x120+70 (179 / 210 A )
Active Voltage Drop
Δu.
aktive:
6,08
7,71
Active Voltage Drop Ratio
%Δu.
aktive:
1,6
2,03
Reactive Voltage Drop
Δu.
reactive:
1,39
1,37
Reactive Voltage Drop Ratio
%Δu.
reactive:
0,37
0,36
Total Voltage Drop Rate
%e
total:
1,97
2,39
Cable Fuse:
200 A
200 A
Click here for detailed analysis and report.